Vulnerabilities

124 via 342 paths

Dependencies

96

Source

Group 6 Copy Created with Sketch. Docker

Target OS

ubuntu:16.04
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Severity
  • 2
  • 41
  • 81
Status
  • 124
  • 0
  • 0

high severity

Out-of-bounds Write

  • Vulnerable module: gnupg
  • Introduced through: gnupg@1.4.20-1ubuntu3.3 and gnupg/gpgv@1.4.20-1ubuntu3.3
  • Fixed in: 1.4.20-1ubuntu3.3+esm3

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 gnupg@1.4.20-1ubuntu3.3
  • Introduced through: ubuntu@xenial-20191010 gnupg/gpgv@1.4.20-1ubuntu3.3

NVD Description

Note: Versions mentioned in the description apply only to the upstream gnupg package and not the gnupg package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

In GnuPG before 2.4.9, armor_filter in g10/armor.c has two increments of an index variable where one is intended, leading to an out-of-bounds write for crafted input. (For ExtendedLTS, 2.2.51 and later are fixed versions.)

Remediation

Upgrade Ubuntu:16.04 gnupg to version 1.4.20-1ubuntu3.3+esm3 or higher.

References

high severity

Allocation of Resources Without Limits or Throttling

  • Vulnerable module: systemd
  • Introduced through: systemd@229-4ubuntu21.22, systemd/libsystemd0@229-4ubuntu21.22 and others
  • Fixed in: 229-4ubuntu21.31+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 systemd@229-4ubuntu21.22
  • Introduced through: ubuntu@xenial-20191010 systemd/libsystemd0@229-4ubuntu21.22
  • Introduced through: ubuntu@xenial-20191010 systemd/libudev1@229-4ubuntu21.22
  • Introduced through: ubuntu@xenial-20191010 systemd/systemd-sysv@229-4ubuntu21.22

NVD Description

Note: Versions mentioned in the description apply only to the upstream systemd package and not the systemd package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

basic/unit-name.c in systemd prior to 246.15, 247.8, 248.5, and 249.1 has a Memory Allocation with an Excessive Size Value (involving strdupa and alloca for a pathname controlled by a local attacker) that results in an operating system crash.

Remediation

Upgrade Ubuntu:16.04 systemd to version 229-4ubuntu21.31+esm1 or higher.

References

medium severity

Security Features

  • Vulnerable module: apparmor/libapparmor1
  • Introduced through: apparmor/libapparmor1@2.10.95-0ubuntu2.11

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 apparmor/libapparmor1@2.10.95-0ubuntu2.11

NVD Description

Note: Versions mentioned in the description apply only to the upstream apparmor package and not the apparmor package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

In all versions of AppArmor mount rules are accidentally widened when compiled.

Remediation

There is no fixed version for Ubuntu:16.04 apparmor.

References

medium severity

Directory Traversal

  • Vulnerable module: dpkg
  • Introduced through: dpkg@1.18.4ubuntu1.6
  • Fixed in: 1.18.4ubuntu1.7+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 dpkg@1.18.4ubuntu1.6

NVD Description

Note: Versions mentioned in the description apply only to the upstream dpkg package and not the dpkg package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

Dpkg::Source::Archive in dpkg, the Debian package management system, before version 1.21.8, 1.20.10, 1.19.8, 1.18.26 is prone to a directory traversal vulnerability. When extracting untrusted source packages in v2 and v3 source package formats that include a debian.tar, the in-place extraction can lead to directory traversal situations on specially crafted orig.tar and debian.tar tarballs.

Remediation

Upgrade Ubuntu:16.04 dpkg to version 1.18.4ubuntu1.7+esm1 or higher.

References

medium severity

Out-of-Bounds

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

An SSE2-optimized memmove implementation for i386 in sysdeps/i386/i686/multiarch/memcpy-sse2-unaligned.S in the GNU C Library (aka glibc or libc6) 2.21 through 2.27 does not correctly perform the overlapping memory check if the source memory range spans the middle of the address space, resulting in corrupt data being produced by the copy operation. This may disclose information to context-dependent attackers, or result in a denial of service, or, possibly, code execution.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.2 or higher.

References

medium severity

Out-of-bounds Write

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

An integer overflow in the implementation of the posix_memalign in memalign functions in the GNU C Library (aka glibc or libc6) 2.26 and earlier could cause these functions to return a pointer to a heap area that is too small, potentially leading to heap corruption.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.2 or higher.

References

medium severity

Out-of-bounds Write

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

stdlib/canonicalize.c in the GNU C Library (aka glibc or libc6) 2.27 and earlier, when processing very long pathname arguments to the realpath function, could encounter an integer overflow on 32-bit architectures, leading to a stack-based buffer overflow and, potentially, arbitrary code execution.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.2 or higher.

References

medium severity

Out-of-bounds Write

  • Vulnerable module: lz4/liblz4-1
  • Introduced through: lz4/liblz4-1@0.0~r131-2ubuntu2
  • Fixed in: 0.0~r131-2ubuntu2+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 lz4/liblz4-1@0.0~r131-2ubuntu2

NVD Description

Note: Versions mentioned in the description apply only to the upstream lz4 package and not the lz4 package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

There's a flaw in lz4. An attacker who submits a crafted file to an application linked with lz4 may be able to trigger an integer overflow, leading to calling of memmove() on a negative size argument, causing an out-of-bounds write and/or a crash. The greatest impact of this flaw is to availability, with some potential impact to confidentiality and integrity as well.

Remediation

Upgrade Ubuntu:16.04 lz4 to version 0.0~r131-2ubuntu2+esm1 or higher.

References

medium severity

Out-of-bounds Write

  • Vulnerable module: zlib/zlib1g
  • Introduced through: zlib/zlib1g@1:1.2.8.dfsg-2ubuntu4.1
  • Fixed in: 1:1.2.8.dfsg-2ubuntu4.3+esm2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 zlib/zlib1g@1:1.2.8.dfsg-2ubuntu4.1

NVD Description

Note: Versions mentioned in the description apply only to the upstream zlib package and not the zlib package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field. NOTE: only applications that call inflateGetHeader are affected. Some common applications bundle the affected zlib source code but may be unable to call inflateGetHeader (e.g., see the nodejs/node reference).

Remediation

Upgrade Ubuntu:16.04 zlib to version 1:1.2.8.dfsg-2ubuntu4.3+esm2 or higher.

References

medium severity

Improper Input Validation

  • Vulnerable module: gzip
  • Introduced through: gzip@1.6-4ubuntu1
  • Fixed in: 1.6-4ubuntu1+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 gzip@1.6-4ubuntu1

NVD Description

Note: Versions mentioned in the description apply only to the upstream gzip package and not the gzip package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

An arbitrary file write vulnerability was found in GNU gzip's zgrep utility. When zgrep is applied on the attacker's chosen file name (for example, a crafted file name), this can overwrite an attacker's content to an arbitrary attacker-selected file. This flaw occurs due to insufficient validation when processing filenames with two or more newlines where selected content and the target file names are embedded in crafted multi-line file names. This flaw allows a remote, low privileged attacker to force zgrep to write arbitrary files on the system.

Remediation

Upgrade Ubuntu:16.04 gzip to version 1.6-4ubuntu1+esm1 or higher.

References

medium severity

Improper Input Validation

  • Vulnerable module: xz-utils/liblzma5
  • Introduced through: xz-utils/liblzma5@5.1.1alpha+20120614-2ubuntu2
  • Fixed in: 5.1.1alpha+20120614-2ubuntu2.16.04.1+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 xz-utils/liblzma5@5.1.1alpha+20120614-2ubuntu2

NVD Description

Note: Versions mentioned in the description apply only to the upstream xz-utils package and not the xz-utils package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

An arbitrary file write vulnerability was found in GNU gzip's zgrep utility. When zgrep is applied on the attacker's chosen file name (for example, a crafted file name), this can overwrite an attacker's content to an arbitrary attacker-selected file. This flaw occurs due to insufficient validation when processing filenames with two or more newlines where selected content and the target file names are embedded in crafted multi-line file names. This flaw allows a remote, low privileged attacker to force zgrep to write arbitrary files on the system.

Remediation

Upgrade Ubuntu:16.04 xz-utils to version 5.1.1alpha+20120614-2ubuntu2.16.04.1+esm1 or higher.

References

medium severity

Improper Certificate Validation

  • Vulnerable module: perl/perl-base
  • Introduced through: perl/perl-base@5.22.1-9ubuntu0.6
  • Fixed in: 5.22.1-9ubuntu0.9+esm2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 perl/perl-base@5.22.1-9ubuntu0.6

NVD Description

Note: Versions mentioned in the description apply only to the upstream perl package and not the perl package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

CPAN.pm before 2.35 does not verify TLS certificates when downloading distributions over HTTPS.

Remediation

Upgrade Ubuntu:16.04 perl to version 5.22.1-9ubuntu0.9+esm2 or higher.

References

medium severity

Out-of-bounds Read

  • Vulnerable module: e2fsprogs
  • Introduced through: e2fsprogs@1.42.13-1ubuntu1.1, e2fsprogs/e2fslibs@1.42.13-1ubuntu1.1 and others
  • Fixed in: 1.42.13-1ubuntu1.2+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 e2fsprogs@1.42.13-1ubuntu1.1
  • Introduced through: ubuntu@xenial-20191010 e2fsprogs/e2fslibs@1.42.13-1ubuntu1.1
  • Introduced through: ubuntu@xenial-20191010 e2fsprogs/libcomerr2@1.42.13-1ubuntu1.1
  • Introduced through: ubuntu@xenial-20191010 e2fsprogs/libss2@1.42.13-1ubuntu1.1

NVD Description

Note: Versions mentioned in the description apply only to the upstream e2fsprogs package and not the e2fsprogs package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

An out-of-bounds read/write vulnerability was found in e2fsprogs 1.46.5. This issue leads to a segmentation fault and possibly arbitrary code execution via a specially crafted filesystem.

Remediation

Upgrade Ubuntu:16.04 e2fsprogs to version 1.42.13-1ubuntu1.2+esm1 or higher.

References

medium severity

Off-by-one Error

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.3+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

A flaw was found in glibc. An off-by-one buffer overflow and underflow in getcwd() may lead to memory corruption when the size of the buffer is exactly 1. A local attacker who can control the input buffer and size passed to getcwd() in a setuid program could use this flaw to potentially execute arbitrary code and escalate their privileges on the system.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.3+esm1 or higher.

References

medium severity

Out-of-bounds Write

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

An AVX-512-optimized implementation of the mempcpy function in the GNU C Library (aka glibc or libc6) 2.27 and earlier may write data beyond the target buffer, leading to a buffer overflow in __mempcpy_avx512_no_vzeroupper.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.2 or higher.

References

medium severity

Integer Overflow or Wraparound

  • Vulnerable module: libcap2
  • Introduced through: libcap2@1:2.24-12 and libcap2/libcap2-bin@1:2.24-12
  • Fixed in: 1:2.24-12ubuntu0.1~esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 libcap2@1:2.24-12
  • Introduced through: ubuntu@xenial-20191010 libcap2/libcap2-bin@1:2.24-12

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcap2 package and not the libcap2 package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

A vulnerability was found in libcap. This issue occurs in the _libcap_strdup() function and can lead to an integer overflow if the input string is close to 4GiB.

Remediation

Upgrade Ubuntu:16.04 libcap2 to version 1:2.24-12ubuntu0.1~esm1 or higher.

References

medium severity

Out-of-bounds Write

  • Vulnerable module: ncurses/libncurses5
  • Introduced through: ncurses/libncurses5@6.0+20160213-1ubuntu1, ncurses/libncursesw5@6.0+20160213-1ubuntu1 and others
  • Fixed in: 6.0+20160213-1ubuntu1+esm3

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 ncurses/libncurses5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libncursesw5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libtinfo5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-base@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-bin@6.0+20160213-1ubuntu1

NVD Description

Note: Versions mentioned in the description apply only to the upstream ncurses package and not the ncurses package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

ncurses before 6.4 20230408, when used by a setuid application, allows local users to trigger security-relevant memory corruption via malformed data in a terminfo database file that is found in $HOME/.terminfo or reached via the TERMINFO or TERM environment variable.

Remediation

Upgrade Ubuntu:16.04 ncurses to version 6.0+20160213-1ubuntu1+esm3 or higher.

References

medium severity

Directory Traversal

  • Vulnerable module: pam/libpam-modules
  • Introduced through: pam/libpam-modules@1.1.8-3.2ubuntu2.1, pam/libpam-modules-bin@1.1.8-3.2ubuntu2.1 and others

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 pam/libpam-modules@1.1.8-3.2ubuntu2.1
  • Introduced through: ubuntu@xenial-20191010 pam/libpam-modules-bin@1.1.8-3.2ubuntu2.1
  • Introduced through: ubuntu@xenial-20191010 pam/libpam-runtime@1.1.8-3.2ubuntu2.1
  • Introduced through: ubuntu@xenial-20191010 pam/libpam0g@1.1.8-3.2ubuntu2.1

NVD Description

Note: Versions mentioned in the description apply only to the upstream pam package and not the pam package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

A flaw was found in linux-pam. The pam_namespace module may improperly handle user-controlled paths, allowing local users to exploit symlink attacks and race conditions to elevate their privileges to root. This CVE provides a "complete" fix for CVE-2025-6020.

Remediation

There is no fixed version for Ubuntu:16.04 pam.

References

medium severity

Improper Verification of Cryptographic Signature

  • Vulnerable module: perl/perl-base
  • Introduced through: perl/perl-base@5.22.1-9ubuntu0.6
  • Fixed in: 5.22.1-9ubuntu0.9+esm1

medium severity

Use After Free

  • Vulnerable module: systemd
  • Introduced through: systemd@229-4ubuntu21.22, systemd/libsystemd0@229-4ubuntu21.22 and others
  • Fixed in: 229-4ubuntu21.27

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 systemd@229-4ubuntu21.22
  • Introduced through: ubuntu@xenial-20191010 systemd/libsystemd0@229-4ubuntu21.22
  • Introduced through: ubuntu@xenial-20191010 systemd/libudev1@229-4ubuntu21.22
  • Introduced through: ubuntu@xenial-20191010 systemd/systemd-sysv@229-4ubuntu21.22

NVD Description

Note: Versions mentioned in the description apply only to the upstream systemd package and not the systemd package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

A heap use-after-free vulnerability was found in systemd before version v245-rc1, where asynchronous Polkit queries are performed while handling dbus messages. A local unprivileged attacker can abuse this flaw to crash systemd services or potentially execute code and elevate their privileges, by sending specially crafted dbus messages.

Remediation

Upgrade Ubuntu:16.04 systemd to version 229-4ubuntu21.27 or higher.

References

medium severity

Out-of-bounds Write

  • Vulnerable module: zlib/zlib1g
  • Introduced through: zlib/zlib1g@1:1.2.8.dfsg-2ubuntu4.1
  • Fixed in: 1:1.2.8.dfsg-2ubuntu4.3+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 zlib/zlib1g@1:1.2.8.dfsg-2ubuntu4.1

NVD Description

Note: Versions mentioned in the description apply only to the upstream zlib package and not the zlib package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

zlib before 1.2.12 allows memory corruption when deflating (i.e., when compressing) if the input has many distant matches.

Remediation

Upgrade Ubuntu:16.04 zlib to version 1:1.2.8.dfsg-2ubuntu4.3+esm1 or higher.

References

medium severity

Out-of-bounds Write

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

An out-of-bounds write vulnerability was found in glibc before 2.31 when handling signal trampolines on PowerPC. Specifically, the backtrace function did not properly check the array bounds when storing the frame address, resulting in a denial of service or potential code execution. The highest threat from this vulnerability is to system availability.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.2 or higher.

References

medium severity

Out-of-bounds Write

  • Vulnerable module: e2fsprogs
  • Introduced through: e2fsprogs@1.42.13-1ubuntu1.1, e2fsprogs/e2fslibs@1.42.13-1ubuntu1.1 and others
  • Fixed in: 1.42.13-1ubuntu1.2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 e2fsprogs@1.42.13-1ubuntu1.1
  • Introduced through: ubuntu@xenial-20191010 e2fsprogs/e2fslibs@1.42.13-1ubuntu1.1
  • Introduced through: ubuntu@xenial-20191010 e2fsprogs/libcomerr2@1.42.13-1ubuntu1.1
  • Introduced through: ubuntu@xenial-20191010 e2fsprogs/libss2@1.42.13-1ubuntu1.1

NVD Description

Note: Versions mentioned in the description apply only to the upstream e2fsprogs package and not the e2fsprogs package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

A code execution vulnerability exists in the directory rehashing functionality of E2fsprogs e2fsck 1.45.4. A specially crafted ext4 directory can cause an out-of-bounds write on the stack, resulting in code execution. An attacker can corrupt a partition to trigger this vulnerability.

Remediation

Upgrade Ubuntu:16.04 e2fsprogs to version 1.42.13-1ubuntu1.2 or higher.

References

medium severity

Arbitrary Code Injection

  • Vulnerable module: gnupg
  • Introduced through: gnupg@1.4.20-1ubuntu3.3 and gnupg/gpgv@1.4.20-1ubuntu3.3
  • Fixed in: 1.4.20-1ubuntu3.3+esm2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 gnupg@1.4.20-1ubuntu3.3
  • Introduced through: ubuntu@xenial-20191010 gnupg/gpgv@1.4.20-1ubuntu3.3

NVD Description

Note: Versions mentioned in the description apply only to the upstream gnupg package and not the gnupg package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

GnuPG through 2.3.6, in unusual situations where an attacker possesses any secret-key information from a victim's keyring and other constraints (e.g., use of GPGME) are met, allows signature forgery via injection into the status line.

Remediation

Upgrade Ubuntu:16.04 gnupg to version 1.4.20-1ubuntu3.3+esm2 or higher.

References

medium severity

Out-of-bounds Write

  • Vulnerable module: ncurses/libncurses5
  • Introduced through: ncurses/libncurses5@6.0+20160213-1ubuntu1, ncurses/libncursesw5@6.0+20160213-1ubuntu1 and others
  • Fixed in: 6.0+20160213-1ubuntu1+esm4

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 ncurses/libncurses5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libncursesw5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libtinfo5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-base@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-bin@6.0+20160213-1ubuntu1

NVD Description

Note: Versions mentioned in the description apply only to the upstream ncurses package and not the ncurses package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

Buffer Overflow vulnerability in postprocess_terminfo function in tinfo/parse_entry.c:997 in ncurses 6.1 allows remote attackers to cause a denial of service via crafted command.

Remediation

Upgrade Ubuntu:16.04 ncurses to version 6.0+20160213-1ubuntu1+esm4 or higher.

References

medium severity

Race Condition

  • Vulnerable module: libgcrypt20
  • Introduced through: libgcrypt20@1.6.5-2ubuntu0.5
  • Fixed in: 1.6.5-2ubuntu0.6

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 libgcrypt20@1.6.5-2ubuntu0.5

NVD Description

Note: Versions mentioned in the description apply only to the upstream libgcrypt20 package and not the libgcrypt20 package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

It was discovered that there was a ECDSA timing attack in the libgcrypt20 cryptographic library. Version affected: 1.8.4-5, 1.7.6-2+deb9u3, and 1.6.3-2+deb8u4. Versions fixed: 1.8.5-2 and 1.6.3-2+deb8u7.

Remediation

Upgrade Ubuntu:16.04 libgcrypt20 to version 1.6.5-2ubuntu0.6 or higher.

References

medium severity

Use of a Broken or Risky Cryptographic Algorithm

  • Vulnerable module: libgcrypt20
  • Introduced through: libgcrypt20@1.6.5-2ubuntu0.5
  • Fixed in: 1.6.5-2ubuntu0.6+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 libgcrypt20@1.6.5-2ubuntu0.5

NVD Description

Note: Versions mentioned in the description apply only to the upstream libgcrypt20 package and not the libgcrypt20 package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The ElGamal implementation in Libgcrypt before 1.9.4 allows plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous combination of the prime defined by the receiver's public key, the generator defined by the receiver's public key, and the sender's ephemeral exponents can lead to a cross-configuration attack against OpenPGP.

Remediation

Upgrade Ubuntu:16.04 libgcrypt20 to version 1.6.5-2ubuntu0.6+esm1 or higher.

References

medium severity

Integer Overflow or Wraparound

  • Vulnerable module: apt
  • Introduced through: apt@1.2.32 and apt/libapt-pkg5.0@1.2.32
  • Fixed in: 1.2.32ubuntu0.2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 apt@1.2.32
  • Introduced through: ubuntu@xenial-20191010 apt/libapt-pkg5.0@1.2.32

NVD Description

Note: Versions mentioned in the description apply only to the upstream apt package and not the apt package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

APT had several integer overflows and underflows while parsing .deb packages, aka GHSL-2020-168 GHSL-2020-169, in files apt-pkg/contrib/extracttar.cc, apt-pkg/deb/debfile.cc, and apt-pkg/contrib/arfile.cc. This issue affects: apt 1.2.32ubuntu0 versions prior to 1.2.32ubuntu0.2; 1.6.12ubuntu0 versions prior to 1.6.12ubuntu0.2; 2.0.2ubuntu0 versions prior to 2.0.2ubuntu0.2; 2.1.10ubuntu0 versions prior to 2.1.10ubuntu0.1;

Remediation

Upgrade Ubuntu:16.04 apt to version 1.2.32ubuntu0.2 or higher.

References

medium severity

Improper Input Validation

  • Vulnerable module: apt
  • Introduced through: apt@1.2.32 and apt/libapt-pkg5.0@1.2.32
  • Fixed in: 1.2.32ubuntu0.1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 apt@1.2.32
  • Introduced through: ubuntu@xenial-20191010 apt/libapt-pkg5.0@1.2.32

NVD Description

Note: Versions mentioned in the description apply only to the upstream apt package and not the apt package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

Missing input validation in the ar/tar implementations of APT before version 2.1.2 could result in denial of service when processing specially crafted deb files.

Remediation

Upgrade Ubuntu:16.04 apt to version 1.2.32ubuntu0.1 or higher.

References

medium severity

CVE-2024-22365

  • Vulnerable module: pam/libpam-modules
  • Introduced through: pam/libpam-modules@1.1.8-3.2ubuntu2.1, pam/libpam-modules-bin@1.1.8-3.2ubuntu2.1 and others
  • Fixed in: 1.1.8-3.2ubuntu2.3+esm5

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 pam/libpam-modules@1.1.8-3.2ubuntu2.1
  • Introduced through: ubuntu@xenial-20191010 pam/libpam-modules-bin@1.1.8-3.2ubuntu2.1
  • Introduced through: ubuntu@xenial-20191010 pam/libpam-runtime@1.1.8-3.2ubuntu2.1
  • Introduced through: ubuntu@xenial-20191010 pam/libpam0g@1.1.8-3.2ubuntu2.1

NVD Description

Note: Versions mentioned in the description apply only to the upstream pam package and not the pam package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

linux-pam (aka Linux PAM) before 1.6.0 allows attackers to cause a denial of service (blocked login process) via mkfifo because the openat call (for protect_dir) lacks O_DIRECTORY.

Remediation

Upgrade Ubuntu:16.04 pam to version 1.1.8-3.2ubuntu2.3+esm5 or higher.

References

medium severity

Off-by-one Error

  • Vulnerable module: systemd
  • Introduced through: systemd@229-4ubuntu21.22, systemd/libsystemd0@229-4ubuntu21.22 and others
  • Fixed in: 229-4ubuntu21.31+esm3

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 systemd@229-4ubuntu21.22
  • Introduced through: ubuntu@xenial-20191010 systemd/libsystemd0@229-4ubuntu21.22
  • Introduced through: ubuntu@xenial-20191010 systemd/libudev1@229-4ubuntu21.22
  • Introduced through: ubuntu@xenial-20191010 systemd/systemd-sysv@229-4ubuntu21.22

NVD Description

Note: Versions mentioned in the description apply only to the upstream systemd package and not the systemd package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

An off-by-one Error issue was discovered in Systemd in format_timespan() function of time-util.c. An attacker could supply specific values for time and accuracy that leads to buffer overrun in format_timespan(), leading to a Denial of Service.

Remediation

Upgrade Ubuntu:16.04 systemd to version 229-4ubuntu21.31+esm3 or higher.

References

medium severity

Out-of-bounds Read

  • Vulnerable module: tar
  • Introduced through: tar@1.28-2.1ubuntu0.1
  • Fixed in: 1.28-2.1ubuntu0.2+esm2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 tar@1.28-2.1ubuntu0.1

NVD Description

Note: Versions mentioned in the description apply only to the upstream tar package and not the tar package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

GNU Tar through 1.34 has a one-byte out-of-bounds read that results in use of uninitialized memory for a conditional jump. Exploitation to change the flow of control has not been demonstrated. The issue occurs in from_header in list.c via a V7 archive in which mtime has approximately 11 whitespace characters.

Remediation

Upgrade Ubuntu:16.04 tar to version 1.28-2.1ubuntu0.2+esm2 or higher.

References

medium severity

CVE-2024-2961

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.3+esm6

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The iconv() function in the GNU C Library versions 2.39 and older may overflow the output buffer passed to it by up to 4 bytes when converting strings to the ISO-2022-CN-EXT character set, which may be used to crash an application or overwrite a neighbouring variable.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.3+esm6 or higher.

References

medium severity

CVE-2024-33599

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.3+esm7

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

nscd: Stack-based buffer overflow in netgroup cache

If the Name Service Cache Daemon's (nscd) fixed size cache is exhausted by client requests then a subsequent client request for netgroup data may result in a stack-based buffer overflow. This flaw was introduced in glibc 2.15 when the cache was added to nscd.

This vulnerability is only present in the nscd binary.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.3+esm7 or higher.

References

medium severity

CVE-2024-33600

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.3+esm7

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

nscd: Null pointer crashes after notfound response

If the Name Service Cache Daemon's (nscd) cache fails to add a not-found netgroup response to the cache, the client request can result in a null pointer dereference. This flaw was introduced in glibc 2.15 when the cache was added to nscd.

This vulnerability is only present in the nscd binary.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.3+esm7 or higher.

References

medium severity

CVE-2024-33601

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.3+esm7

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

nscd: netgroup cache may terminate daemon on memory allocation failure

The Name Service Cache Daemon's (nscd) netgroup cache uses xmalloc or xrealloc and these functions may terminate the process due to a memory allocation failure resulting in a denial of service to the clients. The flaw was introduced in glibc 2.15 when the cache was added to nscd.

This vulnerability is only present in the nscd binary.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.3+esm7 or higher.

References

medium severity

CVE-2024-33602

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.3+esm7

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

nscd: netgroup cache assumes NSS callback uses in-buffer strings

The Name Service Cache Daemon's (nscd) netgroup cache can corrupt memory when the NSS callback does not store all strings in the provided buffer. The flaw was introduced in glibc 2.15 when the cache was added to nscd.

This vulnerability is only present in the nscd binary.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.3+esm7 or higher.

References

medium severity

CVE-2025-0395

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.3+esm8

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

When the assert() function in the GNU C Library versions 2.13 to 2.40 fails, it does not allocate enough space for the assertion failure message string and size information, which may lead to a buffer overflow if the message string size aligns to page size.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.3+esm8 or higher.

References

medium severity
new

CVE-2025-15281

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.3+esm9

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

Calling wordexp with WRDE_REUSE in conjunction with WRDE_APPEND in the GNU C Library version 2.0 to version 2.42 may cause the interface to return uninitialized memory in the we_wordv member, which on subsequent calls to wordfree may abort the process.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.3+esm9 or higher.

References

medium severity

CVE-2025-8058

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.3+esm9

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The regcomp function in the GNU C library version from 2.4 to 2.41 is subject to a double free if some previous allocation fails. It can be accomplished either by a malloc failure or by using an interposed malloc that injects random malloc failures. The double free can allow buffer manipulation depending of how the regex is constructed. This issue affects all architectures and ABIs supported by the GNU C library.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.3+esm9 or higher.

References

medium severity
new

CVE-2026-0915

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.3+esm9

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

Calling getnetbyaddr or getnetbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend for networks and queries for a zero-valued network in the GNU C Library version 2.0 to version 2.42 can leak stack contents to the configured DNS resolver.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.3+esm9 or higher.

References

medium severity

CVE-2023-39804

  • Vulnerable module: tar
  • Introduced through: tar@1.28-2.1ubuntu0.1
  • Fixed in: 1.28-2.1ubuntu0.2+esm3

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 tar@1.28-2.1ubuntu0.1

NVD Description

Note: Versions mentioned in the description apply only to the upstream tar package and not the tar package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

In GNU tar before 1.35, mishandled extension attributes in a PAX archive can lead to an application crash in xheader.c.

Remediation

Upgrade Ubuntu:16.04 tar to version 1.28-2.1ubuntu0.2+esm3 or higher.

References

medium severity

Directory Traversal

  • Vulnerable module: tar
  • Introduced through: tar@1.28-2.1ubuntu0.1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 tar@1.28-2.1ubuntu0.1

NVD Description

Note: Versions mentioned in the description apply only to the upstream tar package and not the tar package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

GNU Tar through 1.35 allows file overwrite via directory traversal in crafted TAR archives, with a certain two-step process. First, the victim must extract an archive that contains a ../ symlink to a critical directory. Second, the victim must extract an archive that contains a critical file, specified via a relative pathname that begins with the symlink name and ends with that critical file's name. Here, the extraction follows the symlink and overwrites the critical file. This bypasses the protection mechanism of "Member name contains '..'" that would occur for a single TAR archive that attempted to specify the critical file via a ../ approach. For example, the first archive can contain "x -> ../../../../../home/victim/.ssh" and the second archive can contain x/authorized_keys. This can affect server applications that automatically extract any number of user-supplied TAR archives, and were relying on the blocking of traversal. This can also affect software installation processes in which "tar xf" is run more than once (e.g., when installing a package can automatically install two dependencies that are set up as untrusted tarballs instead of official packages). NOTE: the official GNU Tar manual has an otherwise-empty directory for each "tar xf" in its Security Rules of Thumb; however, third-party advice leads users to run "tar xf" more than once into the same directory.

Remediation

There is no fixed version for Ubuntu:16.04 tar.

References

low severity

Buffer Overflow

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.3+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The deprecated compatibility function clnt_create in the sunrpc module of the GNU C Library (aka glibc) through 2.34 copies its hostname argument on the stack without validating its length, which may result in a buffer overflow, potentially resulting in a denial of service or (if an application is not built with a stack protector enabled) arbitrary code execution.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.3+esm1 or higher.

References

low severity

Buffer Overflow

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.3+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The deprecated compatibility function svcunix_create in the sunrpc module of the GNU C Library (aka glibc) through 2.34 copies its path argument on the stack without validating its length, which may result in a buffer overflow, potentially resulting in a denial of service or (if an application is not built with a stack protector enabled) arbitrary code execution.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.3+esm1 or higher.

References

low severity

Out-of-bounds Read

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

In the GNU C Library (aka glibc or libc6) through 2.29, proceed_next_node in posix/regexec.c has a heap-based buffer over-read via an attempted case-insensitive regular-expression match.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.2 or higher.

References

low severity

Use After Free

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The mq_notify function in the GNU C Library (aka glibc) versions 2.32 and 2.33 has a use-after-free. It may use the notification thread attributes object (passed through its struct sigevent parameter) after it has been freed by the caller, leading to a denial of service (application crash) or possibly unspecified other impact.

Remediation

There is no fixed version for Ubuntu:16.04 glibc.

References

low severity

Out-of-Bounds

  • Vulnerable module: ncurses/libncurses5
  • Introduced through: ncurses/libncurses5@6.0+20160213-1ubuntu1, ncurses/libncursesw5@6.0+20160213-1ubuntu1 and others
  • Fixed in: 6.0+20160213-1ubuntu1+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 ncurses/libncurses5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libncursesw5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libtinfo5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-base@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-bin@6.0+20160213-1ubuntu1

NVD Description

Note: Versions mentioned in the description apply only to the upstream ncurses package and not the ncurses package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

In ncurses 6.0, there is a stack-based buffer overflow in the fmt_entry function. A crafted input will lead to a remote arbitrary code execution attack.

Remediation

Upgrade Ubuntu:16.04 ncurses to version 6.0+20160213-1ubuntu1+esm1 or higher.

References

low severity

Use of Externally-Controlled Format String

  • Vulnerable module: ncurses/libncurses5
  • Introduced through: ncurses/libncurses5@6.0+20160213-1ubuntu1, ncurses/libncursesw5@6.0+20160213-1ubuntu1 and others
  • Fixed in: 6.0+20160213-1ubuntu1+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 ncurses/libncurses5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libncursesw5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libtinfo5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-base@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-bin@6.0+20160213-1ubuntu1

NVD Description

Note: Versions mentioned in the description apply only to the upstream ncurses package and not the ncurses package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

In ncurses 6.0, there is a format string vulnerability in the fmt_entry function. A crafted input will lead to a remote arbitrary code execution attack.

Remediation

Upgrade Ubuntu:16.04 ncurses to version 6.0+20160213-1ubuntu1+esm1 or higher.

References

low severity

Improper Authentication

  • Vulnerable module: pam/libpam-modules
  • Introduced through: pam/libpam-modules@1.1.8-3.2ubuntu2.1, pam/libpam-modules-bin@1.1.8-3.2ubuntu2.1 and others
  • Fixed in: 1.1.8-3.2ubuntu2.3+esm2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 pam/libpam-modules@1.1.8-3.2ubuntu2.1
  • Introduced through: ubuntu@xenial-20191010 pam/libpam-modules-bin@1.1.8-3.2ubuntu2.1
  • Introduced through: ubuntu@xenial-20191010 pam/libpam-runtime@1.1.8-3.2ubuntu2.1
  • Introduced through: ubuntu@xenial-20191010 pam/libpam0g@1.1.8-3.2ubuntu2.1

NVD Description

Note: Versions mentioned in the description apply only to the upstream pam package and not the pam package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The Linux-PAM package before 1.5.2-6.1 for openSUSE Tumbleweed allows authentication bypass for SSH logins. The pam_access.so module doesn't correctly restrict login if a user tries to connect from an IP address that is not resolvable via DNS. In such conditions, a user with denied access to a machine can still get access. NOTE: the relevance of this issue is largely limited to openSUSE Tumbleweed and openSUSE Factory; it does not affect Linux-PAM upstream.

Remediation

Upgrade Ubuntu:16.04 pam to version 1.1.8-3.2ubuntu2.3+esm2 or higher.

References

low severity

Out-of-Bounds

  • Vulnerable module: shadow/login
  • Introduced through: shadow/login@1:4.2-3.1ubuntu5.4 and shadow/passwd@1:4.2-3.1ubuntu5.4
  • Fixed in: 1:4.2-3.1ubuntu5.5+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 shadow/login@1:4.2-3.1ubuntu5.4
  • Introduced through: ubuntu@xenial-20191010 shadow/passwd@1:4.2-3.1ubuntu5.4

NVD Description

Note: Versions mentioned in the description apply only to the upstream shadow package and not the shadow package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

In shadow before 4.5, the newusers tool could be made to manipulate internal data structures in ways unintended by the authors. Malformed input may lead to crashes (with a buffer overflow or other memory corruption) or other unspecified behaviors. This crosses a privilege boundary in, for example, certain web-hosting environments in which a Control Panel allows an unprivileged user account to create subaccounts.

Remediation

Upgrade Ubuntu:16.04 shadow to version 1:4.2-3.1ubuntu5.5+esm1 or higher.

References

low severity

Numeric Errors

  • Vulnerable module: zlib/zlib1g
  • Introduced through: zlib/zlib1g@1:1.2.8.dfsg-2ubuntu4.1
  • Fixed in: 1:1.2.8.dfsg-2ubuntu4.3

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 zlib/zlib1g@1:1.2.8.dfsg-2ubuntu4.1

NVD Description

Note: Versions mentioned in the description apply only to the upstream zlib package and not the zlib package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

inffast.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.

Remediation

Upgrade Ubuntu:16.04 zlib to version 1:1.2.8.dfsg-2ubuntu4.3 or higher.

References

low severity

Numeric Errors

  • Vulnerable module: zlib/zlib1g
  • Introduced through: zlib/zlib1g@1:1.2.8.dfsg-2ubuntu4.1
  • Fixed in: 1:1.2.8.dfsg-2ubuntu4.3

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 zlib/zlib1g@1:1.2.8.dfsg-2ubuntu4.1

NVD Description

Note: Versions mentioned in the description apply only to the upstream zlib package and not the zlib package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The crc32_big function in crc32.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving big-endian CRC calculation.

Remediation

Upgrade Ubuntu:16.04 zlib to version 1:1.2.8.dfsg-2ubuntu4.3 or higher.

References

low severity

Integer Overflow or Wraparound

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.3+esm2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The wordexp function in the GNU C Library (aka glibc) through 2.33 may crash or read arbitrary memory in parse_param (in posix/wordexp.c) when called with an untrusted, crafted pattern, potentially resulting in a denial of service or disclosure of information. This occurs because atoi was used but strtoul should have been used to ensure correct calculations.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.3+esm2 or higher.

References

low severity

Out-of-bounds Write

  • Vulnerable module: ncurses/libncurses5
  • Introduced through: ncurses/libncurses5@6.0+20160213-1ubuntu1, ncurses/libncursesw5@6.0+20160213-1ubuntu1 and others
  • Fixed in: 6.0+20160213-1ubuntu1+esm2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 ncurses/libncurses5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libncursesw5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libtinfo5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-base@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-bin@6.0+20160213-1ubuntu1

NVD Description

Note: Versions mentioned in the description apply only to the upstream ncurses package and not the ncurses package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

An issue was discovered in ncurses through v6.2-1. _nc_captoinfo in captoinfo.c has a heap-based buffer overflow.

Remediation

Upgrade Ubuntu:16.04 ncurses to version 6.0+20160213-1ubuntu1+esm2 or higher.

References

low severity

Numeric Errors

  • Vulnerable module: zlib/zlib1g
  • Introduced through: zlib/zlib1g@1:1.2.8.dfsg-2ubuntu4.1
  • Fixed in: 1:1.2.8.dfsg-2ubuntu4.3

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 zlib/zlib1g@1:1.2.8.dfsg-2ubuntu4.1

NVD Description

Note: Versions mentioned in the description apply only to the upstream zlib package and not the zlib package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The inflateMark function in inflate.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving left shifts of negative integers.

Remediation

Upgrade Ubuntu:16.04 zlib to version 1:1.2.8.dfsg-2ubuntu4.3 or higher.

References

low severity

Numeric Errors

  • Vulnerable module: zlib/zlib1g
  • Introduced through: zlib/zlib1g@1:1.2.8.dfsg-2ubuntu4.1
  • Fixed in: 1:1.2.8.dfsg-2ubuntu4.3

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 zlib/zlib1g@1:1.2.8.dfsg-2ubuntu4.1

NVD Description

Note: Versions mentioned in the description apply only to the upstream zlib package and not the zlib package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

inftrees.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.

Remediation

Upgrade Ubuntu:16.04 zlib to version 1:1.2.8.dfsg-2ubuntu4.3 or higher.

References

low severity

Integer Overflow or Wraparound

  • Vulnerable module: perl/perl-base
  • Introduced through: perl/perl-base@5.22.1-9ubuntu0.6
  • Fixed in: 5.22.1-9ubuntu0.9

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 perl/perl-base@5.22.1-9ubuntu0.6

NVD Description

Note: Versions mentioned in the description apply only to the upstream perl package and not the perl package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

Perl before 5.30.3 has an integer overflow related to mishandling of a "PL_regkind[OP(n)] == NOTHING" situation. A crafted regular expression could lead to malformed bytecode with a possibility of instruction injection.

Remediation

Upgrade Ubuntu:16.04 perl to version 5.22.1-9ubuntu0.9 or higher.

References

low severity

Out-of-bounds Write

  • Vulnerable module: perl/perl-base
  • Introduced through: perl/perl-base@5.22.1-9ubuntu0.6
  • Fixed in: 5.22.1-9ubuntu0.9

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 perl/perl-base@5.22.1-9ubuntu0.6

NVD Description

Note: Versions mentioned in the description apply only to the upstream perl package and not the perl package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

Perl before 5.30.3 on 32-bit platforms allows a heap-based buffer overflow because nested regular expression quantifiers have an integer overflow.

Remediation

Upgrade Ubuntu:16.04 perl to version 5.22.1-9ubuntu0.9 or higher.

References

low severity

Integer Underflow

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.3

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

An exploitable signed comparison vulnerability exists in the ARMv7 memcpy() implementation of GNU glibc 2.30.9000. Calling memcpy() (on ARMv7 targets that utilize the GNU glibc implementation) with a negative value for the 'num' parameter results in a signed comparison vulnerability. If an attacker underflows the 'num' parameter to memcpy(), this vulnerability could lead to undefined behavior such as writing to out-of-bounds memory and potentially remote code execution. Furthermore, this memcpy() implementation allows for program execution to continue in scenarios where a segmentation fault or crash should have occurred. The dangers occur in that subsequent execution and iterations of this code will be executed with this corrupted data.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.3 or higher.

References

low severity

Improper Check for Dropped Privileges

  • Vulnerable module: bash
  • Introduced through: bash@4.3-14ubuntu1.4
  • Fixed in: 4.3-14ubuntu1.4+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 bash@4.3-14ubuntu1.4

NVD Description

Note: Versions mentioned in the description apply only to the upstream bash package and not the bash package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

An issue was discovered in disable_priv_mode in shell.c in GNU Bash through 5.0 patch 11. By default, if Bash is run with its effective UID not equal to its real UID, it will drop privileges by setting its effective UID to its real UID. However, it does so incorrectly. On Linux and other systems that support "saved UID" functionality, the saved UID is not dropped. An attacker with command execution in the shell can use "enable -f" for runtime loading of a new builtin, which can be a shared object that calls setuid() and therefore regains privileges. However, binaries running with an effective UID of 0 are unaffected.

Remediation

Upgrade Ubuntu:16.04 bash to version 4.3-14ubuntu1.4+esm1 or higher.

References

low severity

Out-of-bounds Write

  • Vulnerable module: ncurses/libncurses5
  • Introduced through: ncurses/libncurses5@6.0+20160213-1ubuntu1, ncurses/libncursesw5@6.0+20160213-1ubuntu1 and others
  • Fixed in: 6.0+20160213-1ubuntu1+esm2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 ncurses/libncurses5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libncursesw5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libtinfo5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-base@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-bin@6.0+20160213-1ubuntu1

NVD Description

Note: Versions mentioned in the description apply only to the upstream ncurses package and not the ncurses package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

Stack-based buffer overflow in the _nc_write_entry function in tinfo/write_entry.c in ncurses 6.0 allows attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted terminfo file, as demonstrated by tic.

Remediation

Upgrade Ubuntu:16.04 ncurses to version 6.0+20160213-1ubuntu1+esm2 or higher.

References

low severity

Access Restriction Bypass

  • Vulnerable module: util-linux
  • Introduced through: util-linux@2.27.1-6ubuntu3.8, util-linux/libblkid1@2.27.1-6ubuntu3.8 and others

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 util-linux@2.27.1-6ubuntu3.8
  • Introduced through: ubuntu@xenial-20191010 util-linux/libblkid1@2.27.1-6ubuntu3.8
  • Introduced through: ubuntu@xenial-20191010 util-linux/libfdisk1@2.27.1-6ubuntu3.8
  • Introduced through: ubuntu@xenial-20191010 util-linux/libmount1@2.27.1-6ubuntu3.8
  • Introduced through: ubuntu@xenial-20191010 util-linux/libsmartcols1@2.27.1-6ubuntu3.8
  • Introduced through: ubuntu@xenial-20191010 util-linux/libuuid1@2.27.1-6ubuntu3.8
  • Introduced through: ubuntu@xenial-20191010 util-linux/mount@2.27.1-6ubuntu3.8
  • Introduced through: ubuntu@xenial-20191010 util-linux/bsdutils@1:2.27.1-6ubuntu3.8

NVD Description

Note: Versions mentioned in the description apply only to the upstream util-linux package and not the util-linux package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

runuser in util-linux allows local users to escape to the parent session via a crafted TIOCSTI ioctl call, which pushes characters to the terminal's input buffer.

Remediation

There is no fixed version for Ubuntu:16.04 util-linux.

References

low severity

Improper Data Handling

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.3

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

In the GNU C Library (aka glibc or libc6) before 2.28, parse_reg_exp in posix/regcomp.c misparses alternatives, which allows attackers to cause a denial of service (assertion failure and application exit) or trigger an incorrect result by attempting a regular-expression match.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.3 or higher.

References

low severity

Reachable Assertion

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.3+esm2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid input sequences in the ISO-2022-JP-3 encoding, fails an assertion in the code path and aborts the program, potentially resulting in a denial of service.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.3+esm2 or higher.

References

low severity

Improper Certificate Validation

  • Vulnerable module: gnupg
  • Introduced through: gnupg@1.4.20-1ubuntu3.3 and gnupg/gpgv@1.4.20-1ubuntu3.3

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 gnupg@1.4.20-1ubuntu3.3
  • Introduced through: ubuntu@xenial-20191010 gnupg/gpgv@1.4.20-1ubuntu3.3

NVD Description

Note: Versions mentioned in the description apply only to the upstream gnupg package and not the gnupg package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

Interaction between the sks-keyserver code through 1.2.0 of the SKS keyserver network, and GnuPG through 2.2.16, makes it risky to have a GnuPG keyserver configuration line referring to a host on the SKS keyserver network. Retrieving data from this network may cause a persistent denial of service, because of a Certificate Spamming Attack.

Remediation

There is no fixed version for Ubuntu:16.04 gnupg.

References

low severity

Use of a Broken or Risky Cryptographic Algorithm

  • Vulnerable module: gnupg
  • Introduced through: gnupg@1.4.20-1ubuntu3.3 and gnupg/gpgv@1.4.20-1ubuntu3.3

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 gnupg@1.4.20-1ubuntu3.3
  • Introduced through: ubuntu@xenial-20191010 gnupg/gpgv@1.4.20-1ubuntu3.3

NVD Description

Note: Versions mentioned in the description apply only to the upstream gnupg package and not the gnupg package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

A flaw was found in the way certificate signatures could be forged using collisions found in the SHA-1 algorithm. An attacker could use this weakness to create forged certificate signatures. This issue affects GnuPG versions before 2.2.18.

Remediation

There is no fixed version for Ubuntu:16.04 gnupg.

References

low severity

Information Exposure

  • Vulnerable module: libgcrypt20
  • Introduced through: libgcrypt20@1.6.5-2ubuntu0.5
  • Fixed in: 1.6.5-2ubuntu0.6+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 libgcrypt20@1.6.5-2ubuntu0.5

NVD Description

Note: Versions mentioned in the description apply only to the upstream libgcrypt20 package and not the libgcrypt20 package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

Libgcrypt before 1.8.8 and 1.9.x before 1.9.3 mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm, and the window size is not chosen appropriately. This, for example, affects use of ElGamal in OpenPGP.

Remediation

Upgrade Ubuntu:16.04 libgcrypt20 to version 1.6.5-2ubuntu0.6+esm1 or higher.

References

low severity

Improper Input Validation

  • Vulnerable module: ncurses/libncurses5
  • Introduced through: ncurses/libncurses5@6.0+20160213-1ubuntu1, ncurses/libncursesw5@6.0+20160213-1ubuntu1 and others
  • Fixed in: 6.0+20160213-1ubuntu1+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 ncurses/libncurses5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libncursesw5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libtinfo5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-base@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-bin@6.0+20160213-1ubuntu1

NVD Description

Note: Versions mentioned in the description apply only to the upstream ncurses package and not the ncurses package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

In ncurses 6.0, there is an attempted 0xffffffffffffffff access in the append_acs function of tinfo/parse_entry.c. It could lead to a remote denial of service attack if the terminfo library code is used to process untrusted terminfo data.

Remediation

Upgrade Ubuntu:16.04 ncurses to version 6.0+20160213-1ubuntu1+esm1 or higher.

References

low severity

Loop with Unreachable Exit Condition ('Infinite Loop')

  • Vulnerable module: ncurses/libncurses5
  • Introduced through: ncurses/libncurses5@6.0+20160213-1ubuntu1, ncurses/libncursesw5@6.0+20160213-1ubuntu1 and others
  • Fixed in: 6.0+20160213-1ubuntu1+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 ncurses/libncurses5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libncursesw5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libtinfo5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-base@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-bin@6.0+20160213-1ubuntu1

NVD Description

Note: Versions mentioned in the description apply only to the upstream ncurses package and not the ncurses package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

There is an infinite loop in the next_char function in comp_scan.c in ncurses 6.0, related to libtic. A crafted input will lead to a remote denial of service attack.

Remediation

Upgrade Ubuntu:16.04 ncurses to version 6.0+20160213-1ubuntu1+esm1 or higher.

References

low severity

NULL Pointer Dereference

  • Vulnerable module: ncurses/libncurses5
  • Introduced through: ncurses/libncurses5@6.0+20160213-1ubuntu1, ncurses/libncursesw5@6.0+20160213-1ubuntu1 and others
  • Fixed in: 6.0+20160213-1ubuntu1+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 ncurses/libncurses5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libncursesw5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libtinfo5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-base@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-bin@6.0+20160213-1ubuntu1

NVD Description

Note: Versions mentioned in the description apply only to the upstream ncurses package and not the ncurses package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

In ncurses 6.0, there is a NULL Pointer Dereference in the _nc_parse_entry function of tinfo/parse_entry.c. It could lead to a remote denial of service attack if the terminfo library code is used to process untrusted terminfo data.

Remediation

Upgrade Ubuntu:16.04 ncurses to version 6.0+20160213-1ubuntu1+esm1 or higher.

References

low severity

Out-of-Bounds

  • Vulnerable module: pcre3/libpcre3
  • Introduced through: pcre3/libpcre3@2:8.38-3.1
  • Fixed in: 2:8.38-3.1ubuntu0.1~esm2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 pcre3/libpcre3@2:8.38-3.1

NVD Description

Note: Versions mentioned in the description apply only to the upstream pcre3 package and not the pcre3 package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

libpcre1 in PCRE 8.40 and libpcre2 in PCRE2 10.23 allow remote attackers to cause a denial of service (segmentation violation for read access, and application crash) by triggering an invalid Unicode property lookup.

Remediation

Upgrade Ubuntu:16.04 pcre3 to version 2:8.38-3.1ubuntu0.1~esm2 or higher.

References

low severity

Out-of-bounds Read

  • Vulnerable module: pcre3/libpcre3
  • Introduced through: pcre3/libpcre3@2:8.38-3.1
  • Fixed in: 2:8.38-3.1ubuntu0.1~esm2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 pcre3/libpcre3@2:8.38-3.1

NVD Description

Note: Versions mentioned in the description apply only to the upstream pcre3 package and not the pcre3 package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The compile_bracket_matchingpath function in pcre_jit_compile.c in PCRE through 8.x before revision 1680 (e.g., the PHP 7.1.1 bundled version) allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted regular expression.

Remediation

Upgrade Ubuntu:16.04 pcre3 to version 2:8.38-3.1ubuntu0.1~esm2 or higher.

References

low severity

Uncontrolled Recursion

  • Vulnerable module: pcre3/libpcre3
  • Introduced through: pcre3/libpcre3@2:8.38-3.1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 pcre3/libpcre3@2:8.38-3.1

NVD Description

Note: Versions mentioned in the description apply only to the upstream pcre3 package and not the pcre3 package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

In PCRE 8.41, the OP_KETRMAX feature in the match function in pcre_exec.c allows stack exhaustion (uncontrolled recursion) when processing a crafted regular expression.

Remediation

There is no fixed version for Ubuntu:16.04 pcre3.

References

low severity

Buffer Overflow

  • Vulnerable module: perl/perl-base
  • Introduced through: perl/perl-base@5.22.1-9ubuntu0.6
  • Fixed in: 5.22.1-9ubuntu0.9

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 perl/perl-base@5.22.1-9ubuntu0.6

NVD Description

Note: Versions mentioned in the description apply only to the upstream perl package and not the perl package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

regcomp.c in Perl before 5.30.3 allows a buffer overflow via a crafted regular expression because of recursive S_study_chunk calls.

Remediation

Upgrade Ubuntu:16.04 perl to version 5.22.1-9ubuntu0.9 or higher.

References

low severity

NULL Pointer Dereference

  • Vulnerable module: tar
  • Introduced through: tar@1.28-2.1ubuntu0.1
  • Fixed in: 1.28-2.1ubuntu0.2

low severity

Out-of-bounds Read

  • Vulnerable module: ncurses/libncurses5
  • Introduced through: ncurses/libncurses5@6.0+20160213-1ubuntu1, ncurses/libncursesw5@6.0+20160213-1ubuntu1 and others
  • Fixed in: 6.0+20160213-1ubuntu1+esm2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 ncurses/libncurses5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libncursesw5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libtinfo5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-base@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-bin@6.0+20160213-1ubuntu1

NVD Description

Note: Versions mentioned in the description apply only to the upstream ncurses package and not the ncurses package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

ncurses 6.3 before patch 20220416 has an out-of-bounds read and segmentation violation in convert_strings in tinfo/read_entry.c in the terminfo library.

Remediation

Upgrade Ubuntu:16.04 ncurses to version 6.0+20160213-1ubuntu1+esm2 or higher.

References

low severity

Use After Free

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde expansion was carried out. Directory paths containing an initial tilde followed by a valid username were affected by this issue. A local attacker could exploit this flaw by creating a specially crafted path that, when processed by the glob function, would potentially lead to arbitrary code execution. This was fixed in version 2.32.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.2 or higher.

References

low severity

Improper Authentication

  • Vulnerable module: cryptsetup/libcryptsetup4
  • Introduced through: cryptsetup/libcryptsetup4@2:1.6.6-5ubuntu2.1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 cryptsetup/libcryptsetup4@2:1.6.6-5ubuntu2.1

NVD Description

Note: Versions mentioned in the description apply only to the upstream cryptsetup package and not the cryptsetup package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The Debian initrd script for the cryptsetup package 2:1.7.3-2 and earlier allows physically proximate attackers to gain shell access via many log in attempts with an invalid password.

Remediation

There is no fixed version for Ubuntu:16.04 cryptsetup.

References

low severity

Improper Input Validation

  • Vulnerable module: coreutils
  • Introduced through: coreutils@8.25-2ubuntu3~16.04

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 coreutils@8.25-2ubuntu3~16.04

NVD Description

Note: Versions mentioned in the description apply only to the upstream coreutils package and not the coreutils package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

chroot in GNU coreutils, when used with --userspec, allows local users to escape to the parent session via a crafted TIOCSTI ioctl call, which pushes characters to the terminal's input buffer.

Remediation

There is no fixed version for Ubuntu:16.04 coreutils.

References

low severity

CVE-2023-50495

  • Vulnerable module: ncurses/libncurses5
  • Introduced through: ncurses/libncurses5@6.0+20160213-1ubuntu1, ncurses/libncursesw5@6.0+20160213-1ubuntu1 and others
  • Fixed in: 6.0+20160213-1ubuntu1+esm5

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 ncurses/libncurses5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libncursesw5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libtinfo5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-base@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-bin@6.0+20160213-1ubuntu1

NVD Description

Note: Versions mentioned in the description apply only to the upstream ncurses package and not the ncurses package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

NCurse v6.4-20230418 was discovered to contain a segmentation fault via the component _nc_wrap_entry().

Remediation

Upgrade Ubuntu:16.04 ncurses to version 6.0+20160213-1ubuntu1+esm5 or higher.

References

low severity

NULL Pointer Dereference

  • Vulnerable module: ncurses/libncurses5
  • Introduced through: ncurses/libncurses5@6.0+20160213-1ubuntu1, ncurses/libncursesw5@6.0+20160213-1ubuntu1 and others
  • Fixed in: 6.0+20160213-1ubuntu1+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 ncurses/libncurses5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libncursesw5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libtinfo5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-base@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-bin@6.0+20160213-1ubuntu1

NVD Description

Note: Versions mentioned in the description apply only to the upstream ncurses package and not the ncurses package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

In ncurses, possibly a 6.x version, there is a NULL pointer dereference at the function _nc_name_match that will lead to a denial of service attack. NOTE: the original report stated version 6.1, but the issue did not reproduce for that version according to the maintainer or a reliable third-party

Remediation

Upgrade Ubuntu:16.04 ncurses to version 6.0+20160213-1ubuntu1+esm1 or higher.

References

low severity

Out-of-Bounds

  • Vulnerable module: ncurses/libncurses5
  • Introduced through: ncurses/libncurses5@6.0+20160213-1ubuntu1, ncurses/libncursesw5@6.0+20160213-1ubuntu1 and others
  • Fixed in: 6.0+20160213-1ubuntu1+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 ncurses/libncurses5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libncursesw5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libtinfo5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-base@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-bin@6.0+20160213-1ubuntu1

NVD Description

Note: Versions mentioned in the description apply only to the upstream ncurses package and not the ncurses package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

There is an illegal address access in the function dump_uses() in progs/dump_entry.c in ncurses 6.0 that might lead to a remote denial of service attack.

Remediation

Upgrade Ubuntu:16.04 ncurses to version 6.0+20160213-1ubuntu1+esm1 or higher.

References

low severity

Out-of-Bounds

  • Vulnerable module: ncurses/libncurses5
  • Introduced through: ncurses/libncurses5@6.0+20160213-1ubuntu1, ncurses/libncursesw5@6.0+20160213-1ubuntu1 and others
  • Fixed in: 6.0+20160213-1ubuntu1+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 ncurses/libncurses5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libncursesw5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libtinfo5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-base@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-bin@6.0+20160213-1ubuntu1

NVD Description

Note: Versions mentioned in the description apply only to the upstream ncurses package and not the ncurses package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

There is an illegal address access in the function _nc_read_entry_source() in progs/tic.c in ncurses 6.0 that might lead to a remote denial of service attack.

Remediation

Upgrade Ubuntu:16.04 ncurses to version 6.0+20160213-1ubuntu1+esm1 or higher.

References

low severity

Out-of-Bounds

  • Vulnerable module: ncurses/libncurses5
  • Introduced through: ncurses/libncurses5@6.0+20160213-1ubuntu1, ncurses/libncursesw5@6.0+20160213-1ubuntu1 and others
  • Fixed in: 6.0+20160213-1ubuntu1+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 ncurses/libncurses5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libncursesw5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libtinfo5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-base@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-bin@6.0+20160213-1ubuntu1

NVD Description

Note: Versions mentioned in the description apply only to the upstream ncurses package and not the ncurses package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

There is an illegal address access in the _nc_safe_strcat function in strings.c in ncurses 6.0 that will lead to a remote denial of service attack.

Remediation

Upgrade Ubuntu:16.04 ncurses to version 6.0+20160213-1ubuntu1+esm1 or higher.

References

low severity

Out-of-Bounds

  • Vulnerable module: ncurses/libncurses5
  • Introduced through: ncurses/libncurses5@6.0+20160213-1ubuntu1, ncurses/libncursesw5@6.0+20160213-1ubuntu1 and others
  • Fixed in: 6.0+20160213-1ubuntu1+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 ncurses/libncurses5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libncursesw5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libtinfo5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-base@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-bin@6.0+20160213-1ubuntu1

NVD Description

Note: Versions mentioned in the description apply only to the upstream ncurses package and not the ncurses package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

There is an illegal address access in the fmt_entry function in progs/dump_entry.c in ncurses 6.0 that might lead to a remote denial of service attack.

Remediation

Upgrade Ubuntu:16.04 ncurses to version 6.0+20160213-1ubuntu1+esm1 or higher.

References

low severity

Out-of-Bounds

  • Vulnerable module: ncurses/libncurses5
  • Introduced through: ncurses/libncurses5@6.0+20160213-1ubuntu1, ncurses/libncursesw5@6.0+20160213-1ubuntu1 and others
  • Fixed in: 6.0+20160213-1ubuntu1+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 ncurses/libncurses5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libncursesw5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libtinfo5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-base@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-bin@6.0+20160213-1ubuntu1

NVD Description

Note: Versions mentioned in the description apply only to the upstream ncurses package and not the ncurses package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

There is an illegal address access in the function postprocess_termcap() in parse_entry.c in ncurses 6.0 that will lead to a remote denial of service attack.

Remediation

Upgrade Ubuntu:16.04 ncurses to version 6.0+20160213-1ubuntu1+esm1 or higher.

References

low severity

Out-of-Bounds

  • Vulnerable module: ncurses/libncurses5
  • Introduced through: ncurses/libncurses5@6.0+20160213-1ubuntu1, ncurses/libncursesw5@6.0+20160213-1ubuntu1 and others
  • Fixed in: 6.0+20160213-1ubuntu1+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 ncurses/libncurses5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libncursesw5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libtinfo5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-base@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-bin@6.0+20160213-1ubuntu1

NVD Description

Note: Versions mentioned in the description apply only to the upstream ncurses package and not the ncurses package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

There is an illegal address access in the _nc_save_str function in alloc_entry.c in ncurses 6.0. It will lead to a remote denial of service attack.

Remediation

Upgrade Ubuntu:16.04 ncurses to version 6.0+20160213-1ubuntu1+esm1 or higher.

References

low severity

Authentication Bypass

  • Vulnerable module: systemd
  • Introduced through: systemd@229-4ubuntu21.22, systemd/libsystemd0@229-4ubuntu21.22 and others
  • Fixed in: 229-4ubuntu21.31+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 systemd@229-4ubuntu21.22
  • Introduced through: ubuntu@xenial-20191010 systemd/libsystemd0@229-4ubuntu21.22
  • Introduced through: ubuntu@xenial-20191010 systemd/libudev1@229-4ubuntu21.22
  • Introduced through: ubuntu@xenial-20191010 systemd/systemd-sysv@229-4ubuntu21.22

NVD Description

Note: Versions mentioned in the description apply only to the upstream systemd package and not the systemd package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

An exploitable denial-of-service vulnerability exists in Systemd 245. A specially crafted DHCP FORCERENEW packet can cause a server running the DHCP client to be vulnerable to a DHCP ACK spoofing attack. An attacker can forge a pair of FORCERENEW and DCHP ACK packets to reconfigure the server.

Remediation

Upgrade Ubuntu:16.04 systemd to version 229-4ubuntu21.31+esm1 or higher.

References

low severity

Allocation of Resources Without Limits or Throttling

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.3+esm3

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The DNS stub resolver in the GNU C Library (aka glibc or libc6) before version 2.26, when EDNS support is enabled, will solicit large UDP responses from name servers, potentially simplifying off-path DNS spoofing attacks due to IP fragmentation.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.3+esm3 or higher.

References

low severity

Improper Data Handling

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The pop_fail_stack function in the GNU C Library (aka glibc or libc6) allows context-dependent attackers to cause a denial of service (assertion failure and application crash) via vectors related to extended regular expression processing.

Remediation

There is no fixed version for Ubuntu:16.04 glibc.

References

low severity

Improper Input Validation

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.3+esm3

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The iconv program in the GNU C Library (aka glibc or libc6) 2.31 and earlier, when invoked with multiple suffixes in the destination encoding (TRANSLATE or IGNORE) along with the -c option, enters an infinite loop when processing invalid multi-byte input sequences, leading to a denial of service.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.3+esm3 or higher.

References

low severity

Out-of-bounds Read

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.3+esm3

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The iconv feature in the GNU C Library (aka glibc or libc6) through 2.32, when processing invalid multi-byte input sequences in the EUC-KR encoding, may have a buffer over-read.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.3+esm3 or higher.

References

low severity

Use After Free

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

Use-after-free vulnerability in the clntudp_call function in sunrpc/clnt_udp.c in the GNU C Library (aka glibc or libc6) before 2.26 allows remote attackers to have unspecified impact via vectors related to error path.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.2 or higher.

References

low severity

Use After Free

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.3+esm5

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

A flaw has been identified in glibc. In an uncommon situation, the gaih_inet function may use memory that has been freed, resulting in an application crash. This issue is only exploitable when the getaddrinfo function is called and the hosts database in /etc/nsswitch.conf is configured with SUCCESS=continue or SUCCESS=merge.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.3+esm5 or higher.

References

low severity

Use After Free

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.3+esm5

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

A flaw has been identified in glibc. In an extremely rare situation, the getaddrinfo function may access memory that has been freed, resulting in an application crash. This issue is only exploitable when a NSS module implements only the nss_gethostbyname2_r and nss_getcanonname_r hooks without implementing the nss*_gethostbyname3_r hook. The resolved name should return a large number of IPv6 and IPv4, and the call to the getaddrinfo function should have the AF_INET6 address family with AI_CANONNAME, AI_ALL and AI_V4MAPPED as flags.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.3+esm5 or higher.

References

low severity

Loop with Unreachable Exit Condition ('Infinite Loop')

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.3+esm3

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid multi-byte input sequences in IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 encodings, fails to advance the input state, which could lead to an infinite loop in applications, resulting in a denial of service, a different vulnerability from CVE-2016-10228.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.3+esm3 or higher.

References

low severity

Out-of-Bounds

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The GNU C Library (aka glibc or libc6) before 2.32 could overflow an on-stack buffer during range reduction if an input to an 80-bit long double function contains a non-canonical bit pattern, a seen when passing a 0x5d414141414141410000 value to sinl on x86 targets. This is related to sysdeps/ieee754/ldbl-96/e_rem_pio2l.c.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.2 or higher.

References

low severity

NULL Pointer Dereference

  • Vulnerable module: ncurses/libncurses5
  • Introduced through: ncurses/libncurses5@6.0+20160213-1ubuntu1, ncurses/libncursesw5@6.0+20160213-1ubuntu1 and others
  • Fixed in: 6.0+20160213-1ubuntu1+esm2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 ncurses/libncurses5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libncursesw5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libtinfo5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-base@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-bin@6.0+20160213-1ubuntu1

NVD Description

Note: Versions mentioned in the description apply only to the upstream ncurses package and not the ncurses package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

In ncurses 6.1, there is a NULL pointer dereference at function _nc_parse_entry in parse_entry.c that will lead to a denial of service attack. The product proceeds to the dereference code path even after a "dubious character `*' in name or alias field" detection.

Remediation

Upgrade Ubuntu:16.04 ncurses to version 6.0+20160213-1ubuntu1+esm2 or higher.

References

low severity

Out-of-bounds Read

  • Vulnerable module: pcre3/libpcre3
  • Introduced through: pcre3/libpcre3@2:8.38-3.1
  • Fixed in: 2:8.38-3.1ubuntu0.1~esm2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 pcre3/libpcre3@2:8.38-3.1

NVD Description

Note: Versions mentioned in the description apply only to the upstream pcre3 package and not the pcre3 package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The _pcre32_xclass function in pcre_xclass.c in libpcre1 in PCRE 8.40 allows remote attackers to cause a denial of service (invalid memory read) via a crafted file.

Remediation

Upgrade Ubuntu:16.04 pcre3 to version 2:8.38-3.1ubuntu0.1~esm2 or higher.

References

low severity

Improper Authentication

  • Vulnerable module: shadow/login
  • Introduced through: shadow/login@1:4.2-3.1ubuntu5.4 and shadow/passwd@1:4.2-3.1ubuntu5.4
  • Fixed in: 1:4.2-3.1ubuntu5.5+esm4

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 shadow/login@1:4.2-3.1ubuntu5.4
  • Introduced through: ubuntu@xenial-20191010 shadow/passwd@1:4.2-3.1ubuntu5.4

NVD Description

Note: Versions mentioned in the description apply only to the upstream shadow package and not the shadow package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

A flaw was found in shadow-utils. When asking for a new password, shadow-utils asks the password twice. If the password fails on the second attempt, shadow-utils fails in cleaning the buffer used to store the first entry. This may allow an attacker with enough access to retrieve the password from the memory.

Remediation

Upgrade Ubuntu:16.04 shadow to version 1:4.2-3.1ubuntu5.5+esm4 or higher.

References

low severity

Out-of-bounds Read

  • Vulnerable module: ncurses/libncurses5
  • Introduced through: ncurses/libncurses5@6.0+20160213-1ubuntu1, ncurses/libncursesw5@6.0+20160213-1ubuntu1 and others
  • Fixed in: 6.0+20160213-1ubuntu1+esm2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 ncurses/libncurses5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libncursesw5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libtinfo5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-base@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-bin@6.0+20160213-1ubuntu1

NVD Description

Note: Versions mentioned in the description apply only to the upstream ncurses package and not the ncurses package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

There is a heap-based buffer over-read in the fmt_entry function in tinfo/comp_hash.c in the terminfo library in ncurses before 6.1-20191012.

Remediation

Upgrade Ubuntu:16.04 ncurses to version 6.0+20160213-1ubuntu1+esm2 or higher.

References

low severity

Improper Input Validation

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

In the GNU C Library (aka glibc or libc6) through 2.28, the getaddrinfo function would successfully parse a string that contained an IPv4 address followed by whitespace and arbitrary characters, which could lead applications to incorrectly assume that it had parsed a valid string, without the possibility of embedded HTTP headers or other potentially dangerous substrings.

Remediation

There is no fixed version for Ubuntu:16.04 glibc.

References

low severity

Information Exposure

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

Certain run-time memory protection mechanisms in the GNU C Library (aka glibc or libc6) print argv[0] and backtrace information, which might allow context-dependent attackers to obtain sensitive information from process memory by executing an incorrect program, as demonstrated by a setuid program that contains a stack-based buffer overflow error, related to the __fortify_fail function in debug/fortify_fail.c, and the __stack_chk_fail (aka stack protection) and __chk_fail (aka FORTIFY_SOURCE) implementations.

Remediation

There is no fixed version for Ubuntu:16.04 glibc.

References

low severity

Out-of-bounds Read

  • Vulnerable module: ncurses/libncurses5
  • Introduced through: ncurses/libncurses5@6.0+20160213-1ubuntu1, ncurses/libncursesw5@6.0+20160213-1ubuntu1 and others
  • Fixed in: 6.0+20160213-1ubuntu1+esm2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 ncurses/libncurses5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libncursesw5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/libtinfo5@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-base@6.0+20160213-1ubuntu1
  • Introduced through: ubuntu@xenial-20191010 ncurses/ncurses-bin@6.0+20160213-1ubuntu1

NVD Description

Note: Versions mentioned in the description apply only to the upstream ncurses package and not the ncurses package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

There is a heap-based buffer over-read in the _nc_find_entry function in tinfo/comp_hash.c in the terminfo library in ncurses before 6.1-20191012.

Remediation

Upgrade Ubuntu:16.04 ncurses to version 6.0+20160213-1ubuntu1+esm2 or higher.

References

low severity

Integer Overflow or Wraparound

  • Vulnerable module: pcre3/libpcre3
  • Introduced through: pcre3/libpcre3@2:8.38-3.1
  • Fixed in: 2:8.38-3.1ubuntu0.1~esm1

low severity

Incorrect Permission Assignment for Critical Resource

  • Vulnerable module: shadow/login
  • Introduced through: shadow/login@1:4.2-3.1ubuntu5.4 and shadow/passwd@1:4.2-3.1ubuntu5.4
  • Fixed in: 1:4.2-3.1ubuntu5.5+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 shadow/login@1:4.2-3.1ubuntu5.4
  • Introduced through: ubuntu@xenial-20191010 shadow/passwd@1:4.2-3.1ubuntu5.4

NVD Description

Note: Versions mentioned in the description apply only to the upstream shadow package and not the shadow package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

An issue was discovered in shadow 4.5. newgidmap (in shadow-utils) is setuid and allows an unprivileged user to be placed in a user namespace where setgroups(2) is permitted. This allows an attacker to remove themselves from a supplementary group, which may allow access to certain filesystem paths if the administrator has used "group blacklisting" (e.g., chmod g-rwx) to restrict access to paths. This flaw effectively reverts a security feature in the kernel (in particular, the /proc/self/setgroups knob) to prevent this sort of privilege escalation.

Remediation

Upgrade Ubuntu:16.04 shadow to version 1:4.2-3.1ubuntu5.5+esm1 or higher.

References

low severity

Time-of-check Time-of-use (TOCTOU)

  • Vulnerable module: shadow/login
  • Introduced through: shadow/login@1:4.2-3.1ubuntu5.4 and shadow/passwd@1:4.2-3.1ubuntu5.4

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 shadow/login@1:4.2-3.1ubuntu5.4
  • Introduced through: ubuntu@xenial-20191010 shadow/passwd@1:4.2-3.1ubuntu5.4

NVD Description

Note: Versions mentioned in the description apply only to the upstream shadow package and not the shadow package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

shadow: TOCTOU (time-of-check time-of-use) race condition when copying and removing directory trees

Remediation

There is no fixed version for Ubuntu:16.04 shadow.

References

low severity

Improper Input Validation

  • Vulnerable module: systemd
  • Introduced through: systemd@229-4ubuntu21.22, systemd/libsystemd0@229-4ubuntu21.22 and others
  • Fixed in: 229-4ubuntu21.27

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 systemd@229-4ubuntu21.22
  • Introduced through: ubuntu@xenial-20191010 systemd/libsystemd0@229-4ubuntu21.22
  • Introduced through: ubuntu@xenial-20191010 systemd/libudev1@229-4ubuntu21.22
  • Introduced through: ubuntu@xenial-20191010 systemd/systemd-sysv@229-4ubuntu21.22

NVD Description

Note: Versions mentioned in the description apply only to the upstream systemd package and not the systemd package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

It was discovered systemd does not correctly check the content of PIDFile files before using it to kill processes. When a service is run from an unprivileged user (e.g. User field set in the service file), a local attacker who is able to write to the PIDFile of the mentioned service may use this flaw to trick systemd into killing other services and/or privileged processes. Versions before v237 are vulnerable.

Remediation

Upgrade Ubuntu:16.04 systemd to version 229-4ubuntu21.27 or higher.

References

low severity

Loop with Unreachable Exit Condition ('Infinite Loop')

  • Vulnerable module: tar
  • Introduced through: tar@1.28-2.1ubuntu0.1
  • Fixed in: 1.28-2.1ubuntu0.2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 tar@1.28-2.1ubuntu0.1

NVD Description

Note: Versions mentioned in the description apply only to the upstream tar package and not the tar package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

GNU Tar through 1.30, when --sparse is used, mishandles file shrinkage during read access, which allows local users to cause a denial of service (infinite read loop in sparse_dump_region in sparse.c) by modifying a file that is supposed to be archived by a different user's process (e.g., a system backup running as root).

Remediation

Upgrade Ubuntu:16.04 tar to version 1.28-2.1ubuntu0.2 or higher.

References

low severity

CVE-2016-5011

  • Vulnerable module: util-linux
  • Introduced through: util-linux@2.27.1-6ubuntu3.8, util-linux/libblkid1@2.27.1-6ubuntu3.8 and others
  • Fixed in: 2.27.1-6ubuntu3.10+esm2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 util-linux@2.27.1-6ubuntu3.8
  • Introduced through: ubuntu@xenial-20191010 util-linux/libblkid1@2.27.1-6ubuntu3.8
  • Introduced through: ubuntu@xenial-20191010 util-linux/libfdisk1@2.27.1-6ubuntu3.8
  • Introduced through: ubuntu@xenial-20191010 util-linux/libmount1@2.27.1-6ubuntu3.8
  • Introduced through: ubuntu@xenial-20191010 util-linux/libsmartcols1@2.27.1-6ubuntu3.8
  • Introduced through: ubuntu@xenial-20191010 util-linux/libuuid1@2.27.1-6ubuntu3.8
  • Introduced through: ubuntu@xenial-20191010 util-linux/mount@2.27.1-6ubuntu3.8

NVD Description

Note: Versions mentioned in the description apply only to the upstream util-linux package and not the util-linux package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The parse_dos_extended function in partitions/dos.c in the libblkid library in util-linux allows physically proximate attackers to cause a denial of service (memory consumption) via a crafted MSDOS partition table with an extended partition boot record at zero offset.

Remediation

Upgrade Ubuntu:16.04 util-linux to version 2.27.1-6ubuntu3.10+esm2 or higher.

References

low severity

Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

  • Vulnerable module: gcc-5/gcc-5-base
  • Introduced through: gcc-5/gcc-5-base@5.4.0-6ubuntu1~16.04.11 and gcc-5/libstdc++6@5.4.0-6ubuntu1~16.04.11
  • Fixed in: 5.4.0-6ubuntu1~16.04.12+esm2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 gcc-5/gcc-5-base@5.4.0-6ubuntu1~16.04.11
  • Introduced through: ubuntu@xenial-20191010 gcc-5/libstdc++6@5.4.0-6ubuntu1~16.04.11

NVD Description

Note: Versions mentioned in the description apply only to the upstream gcc-5 package and not the gcc-5 package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

Under certain circumstances, the ix86_expand_builtin function in i386.c in GNU Compiler Collection (GCC) version 4.6, 4.7, 4.8, 4.9, 5 before 5.5, and 6 before 6.4 will generate instruction sequences that clobber the status flag of the RDRAND and RDSEED intrinsics before it can be read, potentially causing failures of these instructions to go unreported. This could potentially lead to less randomness in random number generation.

Remediation

Upgrade Ubuntu:16.04 gcc-5 to version 5.4.0-6ubuntu1~16.04.12+esm2 or higher.

References

low severity

Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

  • Vulnerable module: gccgo-6/gcc-6-base
  • Introduced through: gccgo-6/gcc-6-base@6.0.1-0ubuntu1
  • Fixed in: 6.0.1-0ubuntu1+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 gccgo-6/gcc-6-base@6.0.1-0ubuntu1

NVD Description

Note: Versions mentioned in the description apply only to the upstream gccgo-6 package and not the gccgo-6 package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

Under certain circumstances, the ix86_expand_builtin function in i386.c in GNU Compiler Collection (GCC) version 4.6, 4.7, 4.8, 4.9, 5 before 5.5, and 6 before 6.4 will generate instruction sequences that clobber the status flag of the RDRAND and RDSEED intrinsics before it can be read, potentially causing failures of these instructions to go unreported. This could potentially lead to less randomness in random number generation.

Remediation

Upgrade Ubuntu:16.04 gccgo-6 to version 6.0.1-0ubuntu1+esm1 or higher.

References

low severity

Information Exposure

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.23-0ubuntu11, glibc/libc6@2.23-0ubuntu11 and others
  • Fixed in: 2.23-0ubuntu11.2

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 glibc/libc-bin@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/libc6@2.23-0ubuntu11
  • Introduced through: ubuntu@xenial-20191010 glibc/multiarch-support@2.23-0ubuntu11

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

On the x86-64 architecture, the GNU C Library (aka glibc) before 2.31 fails to ignore the LD_PREFER_MAP_32BIT_EXEC environment variable during program execution after a security transition, allowing local attackers to restrict the possible mapping addresses for loaded libraries and thus bypass ASLR for a setuid program.

Remediation

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.2 or higher.

References

low severity

Out-of-bounds Write

  • Vulnerable module: gnupg
  • Introduced through: gnupg@1.4.20-1ubuntu3.3 and gnupg/gpgv@1.4.20-1ubuntu3.3

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 gnupg@1.4.20-1ubuntu3.3
  • Introduced through: ubuntu@xenial-20191010 gnupg/gpgv@1.4.20-1ubuntu3.3

NVD Description

Note: Versions mentioned in the description apply only to the upstream gnupg package and not the gnupg package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

GnuPG can be made to spin on a relatively small input by (for example) crafting a public key with thousands of signatures attached, compressed down to just a few KB.

Remediation

There is no fixed version for Ubuntu:16.04 gnupg.

References

low severity

Out-of-bounds Read

  • Vulnerable module: libsepol/libsepol1
  • Introduced through: libsepol/libsepol1@2.4-2
  • Fixed in: 2.4-2ubuntu0.1~esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 libsepol/libsepol1@2.4-2

NVD Description

Note: Versions mentioned in the description apply only to the upstream libsepol package and not the libsepol package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The CIL compiler in SELinux 3.2 has a heap-based buffer over-read in ebitmap_match_any (called indirectly from cil_check_neverallow). This occurs because there is sometimes a lack of checks for invalid statements in an optional block.

Remediation

Upgrade Ubuntu:16.04 libsepol to version 2.4-2ubuntu0.1~esm1 or higher.

References

low severity

Use After Free

  • Vulnerable module: libsepol/libsepol1
  • Introduced through: libsepol/libsepol1@2.4-2
  • Fixed in: 2.4-2ubuntu0.1~esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 libsepol/libsepol1@2.4-2

NVD Description

Note: Versions mentioned in the description apply only to the upstream libsepol package and not the libsepol package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The CIL compiler in SELinux 3.2 has a use-after-free in __cil_verify_classperms (called from __verify_map_perm_classperms and hashtab_map).

Remediation

Upgrade Ubuntu:16.04 libsepol to version 2.4-2ubuntu0.1~esm1 or higher.

References

low severity

Use After Free

  • Vulnerable module: libsepol/libsepol1
  • Introduced through: libsepol/libsepol1@2.4-2
  • Fixed in: 2.4-2ubuntu0.1~esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 libsepol/libsepol1@2.4-2

NVD Description

Note: Versions mentioned in the description apply only to the upstream libsepol package and not the libsepol package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The CIL compiler in SELinux 3.2 has a use-after-free in __cil_verify_classperms (called from __cil_verify_classpermission and __cil_pre_verify_helper).

Remediation

Upgrade Ubuntu:16.04 libsepol to version 2.4-2ubuntu0.1~esm1 or higher.

References

low severity

Out-of-bounds Write

  • Vulnerable module: procps
  • Introduced through: procps@2:3.3.10-4ubuntu2.4 and procps/libprocps4@2:3.3.10-4ubuntu2.4
  • Fixed in: 2:3.3.10-4ubuntu2.5+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 procps@2:3.3.10-4ubuntu2.4
  • Introduced through: ubuntu@xenial-20191010 procps/libprocps4@2:3.3.10-4ubuntu2.4

NVD Description

Note: Versions mentioned in the description apply only to the upstream procps package and not the procps package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

Under some circumstances, this weakness allows a user who has access to run the “ps” utility on a machine, the ability to write almost unlimited amounts of unfiltered data into the process heap.

Remediation

Upgrade Ubuntu:16.04 procps to version 2:3.3.10-4ubuntu2.5+esm1 or higher.

References

low severity

Arbitrary Code Injection

  • Vulnerable module: shadow/login
  • Introduced through: shadow/login@1:4.2-3.1ubuntu5.4 and shadow/passwd@1:4.2-3.1ubuntu5.4

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 shadow/login@1:4.2-3.1ubuntu5.4
  • Introduced through: ubuntu@xenial-20191010 shadow/passwd@1:4.2-3.1ubuntu5.4

NVD Description

Note: Versions mentioned in the description apply only to the upstream shadow package and not the shadow package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

In Shadow 4.13, it is possible to inject control characters into fields provided to the SUID program chfn (change finger). Although it is not possible to exploit this directly (e.g., adding a new user fails because \n is in the block list), it is possible to misrepresent the /etc/passwd file when viewed. Use of \r manipulations and Unicode characters to work around blocking of the : character make it possible to give the impression that a new user has been added. In other words, an adversary may be able to convince a system administrator to take the system offline (an indirect, social-engineered denial of service) by demonstrating that "cat /etc/passwd" shows a rogue user account.

Remediation

There is no fixed version for Ubuntu:16.04 shadow.

References

low severity

Out-of-bounds Read

  • Vulnerable module: tar
  • Introduced through: tar@1.28-2.1ubuntu0.1
  • Fixed in: 1.28-2.1ubuntu0.2+esm1

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 tar@1.28-2.1ubuntu0.1

NVD Description

Note: Versions mentioned in the description apply only to the upstream tar package and not the tar package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

A flaw was found in the src/list.c of tar 1.33 and earlier. This flaw allows an attacker who can submit a crafted input file to tar to cause uncontrolled consumption of memory. The highest threat from this vulnerability is to system availability.

Remediation

Upgrade Ubuntu:16.04 tar to version 1.28-2.1ubuntu0.2+esm1 or higher.

References

low severity

Missing Release of Resource after Effective Lifetime

  • Vulnerable module: systemd
  • Introduced through: systemd@229-4ubuntu21.22, systemd/libsystemd0@229-4ubuntu21.22 and others
  • Fixed in: 229-4ubuntu21.27

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 systemd@229-4ubuntu21.22
  • Introduced through: ubuntu@xenial-20191010 systemd/libsystemd0@229-4ubuntu21.22
  • Introduced through: ubuntu@xenial-20191010 systemd/libudev1@229-4ubuntu21.22
  • Introduced through: ubuntu@xenial-20191010 systemd/systemd-sysv@229-4ubuntu21.22

NVD Description

Note: Versions mentioned in the description apply only to the upstream systemd package and not the systemd package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

An issue was discovered in button_open in login/logind-button.c in systemd before 243. When executing the udevadm trigger command, a memory leak may occur.

Remediation

Upgrade Ubuntu:16.04 systemd to version 229-4ubuntu21.27 or higher.

References

low severity

Information Exposure

  • Vulnerable module: libgcrypt20
  • Introduced through: libgcrypt20@1.6.5-2ubuntu0.5

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 libgcrypt20@1.6.5-2ubuntu0.5

NVD Description

Note: Versions mentioned in the description apply only to the upstream libgcrypt20 package and not the libgcrypt20 package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

A timing-based side-channel flaw was found in libgcrypt's RSA implementation. This issue may allow a remote attacker to initiate a Bleichenbacher-style attack, which can lead to the decryption of RSA ciphertexts.

Remediation

There is no fixed version for Ubuntu:16.04 libgcrypt20.

References

low severity

CVE-2024-56433

  • Vulnerable module: shadow/login
  • Introduced through: shadow/login@1:4.2-3.1ubuntu5.4 and shadow/passwd@1:4.2-3.1ubuntu5.4

Detailed paths

  • Introduced through: ubuntu@xenial-20191010 shadow/login@1:4.2-3.1ubuntu5.4
  • Introduced through: ubuntu@xenial-20191010 shadow/passwd@1:4.2-3.1ubuntu5.4

NVD Description

Note: Versions mentioned in the description apply only to the upstream shadow package and not the shadow package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

shadow-utils (aka shadow) 4.4 through 4.17.0 establishes a default /etc/subuid behavior (e.g., uid 100000 through 165535 for the first user account) that can realistically conflict with the uids of users defined on locally administered networks, potentially leading to account takeover, e.g., by leveraging newuidmap for access to an NFS home directory (or same-host resources in the case of remote logins by these local network users). NOTE: it may also be argued that system administrators should not have assigned uids, within local networks, that are within the range that can occur in /etc/subuid.

Remediation

There is no fixed version for Ubuntu:16.04 shadow.

References