Docker concourse/concourse:6.5.0-ubuntu

Vulnerabilities

45 via 90 paths

Dependencies

111

Source

Group 6 Copy Created with Sketch. Docker

Target OS

ubuntu:18.04
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Severity
  • 3
  • 11
  • 31
Status
  • 45
  • 0
  • 0

high severity

NULL Pointer Dereference

  • Vulnerable module: openssl
  • Introduced through: openssl@1.1.1-1ubuntu2.1~18.04.6 and openssl/libssl1.1@1.1.1-1ubuntu2.1~18.04.6
  • Fixed in: 1.1.1-1ubuntu2.1~18.04.7

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* openssl@1.1.1-1ubuntu2.1~18.04.6
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* openssl/libssl1.1@1.1.1-1ubuntu2.1~18.04.6

NVD Description

Note: Versions mentioned in the description apply to the upstream openssl package. See Remediation section below for Ubuntu:18.04 relevant versions.

The X.509 GeneralName type is a generic type for representing different types of names. One of those name types is known as EDIPartyName. OpenSSL provides a function GENERAL_NAME_cmp which compares different instances of a GENERAL_NAME to see if they are equal or not. This function behaves incorrectly when both GENERAL_NAMEs contain an EDIPARTYNAME. A NULL pointer dereference and a crash may occur leading to a possible denial of service attack. OpenSSL itself uses the GENERAL_NAME_cmp function for two purposes: 1) Comparing CRL distribution point names between an available CRL and a CRL distribution point embedded in an X509 certificate 2) When verifying that a timestamp response token signer matches the timestamp authority name (exposed via the API functions TS_RESP_verify_response and TS_RESP_verify_token) If an attacker can control both items being compared then that attacker could trigger a crash. For example if the attacker can trick a client or server into checking a malicious certificate against a malicious CRL then this may occur. Note that some applications automatically download CRLs based on a URL embedded in a certificate. This checking happens prior to the signatures on the certificate and CRL being verified. OpenSSL's s_server, s_client and verify tools have support for the "-crl_download" option which implements automatic CRL downloading and this attack has been demonstrated to work against those tools. Note that an unrelated bug means that affected versions of OpenSSL cannot parse or construct correct encodings of EDIPARTYNAME. However it is possible to construct a malformed EDIPARTYNAME that OpenSSL's parser will accept and hence trigger this attack. All OpenSSL 1.1.1 and 1.0.2 versions are affected by this issue. Other OpenSSL releases are out of support and have not been checked. Fixed in OpenSSL 1.1.1i (Affected 1.1.1-1.1.1h). Fixed in OpenSSL 1.0.2x (Affected 1.0.2-1.0.2w).

Remediation

Upgrade Ubuntu:18.04 openssl to version 1.1.1-1ubuntu2.1~18.04.7 or higher.

References

high severity

NULL Pointer Dereference

  • Vulnerable module: openssl
  • Introduced through: openssl@1.1.1-1ubuntu2.1~18.04.6 and openssl/libssl1.1@1.1.1-1ubuntu2.1~18.04.6
  • Fixed in: 1.1.1-1ubuntu2.1~18.04.9

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* openssl@1.1.1-1ubuntu2.1~18.04.6
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* openssl/libssl1.1@1.1.1-1ubuntu2.1~18.04.6

NVD Description

Note: Versions mentioned in the description apply to the upstream openssl package. See Remediation section below for Ubuntu:18.04 relevant versions.

An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello omits the signature_algorithms extension (where it was present in the initial ClientHello), but includes a signature_algorithms_cert extension then a NULL pointer dereference will result, leading to a crash and a denial of service attack. A server is only vulnerable if it has TLSv1.2 and renegotiation enabled (which is the default configuration). OpenSSL TLS clients are not impacted by this issue. All OpenSSL 1.1.1 versions are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL 1.1.1k (Affected 1.1.1-1.1.1j).

Remediation

Upgrade Ubuntu:18.04 openssl to version 1.1.1-1ubuntu2.1~18.04.9 or higher.

References

high severity
new

CVE-2021-33910

  • Vulnerable module: systemd/libsystemd0
  • Introduced through: systemd/libsystemd0@237-3ubuntu10.42 and systemd/libudev1@237-3ubuntu10.42
  • Fixed in: 237-3ubuntu10.49

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* systemd/libsystemd0@237-3ubuntu10.42
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* systemd/libudev1@237-3ubuntu10.42

NVD Description

Note: Versions mentioned in the description apply to the upstream systemd package. See Remediation section below for Ubuntu:18.04 relevant versions.

basic/unit-name.c in systemd 220 through 248 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:18.04 systemd to version 237-3ubuntu10.49 or higher.

References

medium severity

Integer Overflow or Wraparound

  • Vulnerable module: apt
  • Introduced through: apt@1.6.12ubuntu0.1 and apt/libapt-pkg5.0@1.6.12ubuntu0.1
  • Fixed in: 1.6.12ubuntu0.2

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* apt@1.6.12ubuntu0.1
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* apt/libapt-pkg5.0@1.6.12ubuntu0.1

NVD Description

Note: Versions mentioned in the description apply to the upstream apt package. See Remediation section below for Ubuntu:18.04 relevant versions.

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:18.04 apt to version 1.6.12ubuntu0.2 or higher.

References

medium severity

Information Exposure

  • Vulnerable module: gcc-8/gcc-8-base
  • Introduced through: gcc-8/gcc-8-base@8.4.0-1ubuntu1~18.04, gcc-8/libgcc1@1:8.4.0-1ubuntu1~18.04 and others

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* gcc-8/gcc-8-base@8.4.0-1ubuntu1~18.04
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* gcc-8/libgcc1@1:8.4.0-1ubuntu1~18.04
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* gcc-8/libstdc++6@8.4.0-1ubuntu1~18.04

NVD Description

Note: Versions mentioned in the description apply to the upstream gcc-8 package.

Arm Armv8-A core implementations utilizing speculative execution past unconditional changes in control flow may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis, aka "straight-line speculation."

Remediation

There is no fixed version for Ubuntu:18.04 gcc-8.

References

medium severity

Incorrect Default Permissions

  • Vulnerable module: libzstd/libzstd1
  • Introduced through: libzstd/libzstd1@1.3.3+dfsg-2ubuntu1.1
  • Fixed in: 1.3.3+dfsg-2ubuntu1.2

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* libzstd/libzstd1@1.3.3+dfsg-2ubuntu1.1

NVD Description

Note: Versions mentioned in the description apply to the upstream libzstd package. See Remediation section below for Ubuntu:18.04 relevant versions.

In the Zstandard command-line utility prior to v1.4.1, output files were created with default permissions. Correct file permissions (matching the input) would only be set at completion time. Output files could therefore be readable or writable to unintended parties.

Remediation

Upgrade Ubuntu:18.04 libzstd to version 1.3.3+dfsg-2ubuntu1.2 or higher.

References

medium severity

Incorrect Default Permissions

  • Vulnerable module: libzstd/libzstd1
  • Introduced through: libzstd/libzstd1@1.3.3+dfsg-2ubuntu1.1
  • Fixed in: 1.3.3+dfsg-2ubuntu1.2

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* libzstd/libzstd1@1.3.3+dfsg-2ubuntu1.1

NVD Description

Note: Versions mentioned in the description apply to the upstream libzstd package. See Remediation section below for Ubuntu:18.04 relevant versions.

Beginning in v1.4.1 and prior to v1.4.9, due to an incomplete fix for CVE-2021-24031, the Zstandard command-line utility created output files with default permissions and restricted those permissions immediately afterwards. Output files could therefore momentarily be readable or writable to unintended parties.

Remediation

Upgrade Ubuntu:18.04 libzstd to version 1.3.3+dfsg-2ubuntu1.2 or higher.

References

medium severity

Out-of-bounds Write

  • Vulnerable module: lz4/liblz4-1
  • Introduced through: lz4/liblz4-1@0.0~r131-2ubuntu3
  • Fixed in: 0.0~r131-2ubuntu3.1

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* lz4/liblz4-1@0.0~r131-2ubuntu3

NVD Description

Note: Versions mentioned in the description apply to the upstream lz4 package. See Remediation section below for Ubuntu:18.04 relevant versions.

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:18.04 lz4 to version 0.0~r131-2ubuntu3.1 or higher.

References

medium severity

CVE-2021-3580

  • Vulnerable module: nettle/libhogweed4
  • Introduced through: nettle/libhogweed4@3.4-1 and nettle/libnettle6@3.4-1
  • Fixed in: 3.4.1-0ubuntu0.18.04.1

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* nettle/libhogweed4@3.4-1
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* nettle/libnettle6@3.4-1

NVD Description

Note: Versions mentioned in the description apply to the upstream nettle package. See Remediation section below for Ubuntu:18.04 relevant versions.

Remote crash in RSA decryption via manipulated ciphertext

Remediation

Upgrade Ubuntu:18.04 nettle to version 3.4.1-0ubuntu0.18.04.1 or higher.

References

medium severity

Use of a Broken or Risky Cryptographic Algorithm

  • Vulnerable module: nettle/libhogweed4
  • Introduced through: nettle/libhogweed4@3.4-1 and nettle/libnettle6@3.4-1
  • Fixed in: 3.4-1ubuntu0.1

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* nettle/libhogweed4@3.4-1
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* nettle/libnettle6@3.4-1

NVD Description

Note: Versions mentioned in the description apply to the upstream nettle package. See Remediation section below for Ubuntu:18.04 relevant versions.

A flaw was found in Nettle in versions before 3.7.2, where several Nettle signature verification functions (GOST DSA, EDDSA & ECDSA) result in the Elliptic Curve Cryptography point (ECC) multiply function being called with out-of-range scalers, possibly resulting in incorrect results. This flaw allows an attacker to force an invalid signature, causing an assertion failure or possible validation. The highest threat to this vulnerability is to confidentiality, integrity, as well as system availability.

Remediation

Upgrade Ubuntu:18.04 nettle to version 3.4-1ubuntu0.1 or higher.

References

medium severity

Integer Overflow or Wraparound

  • Vulnerable module: openssl
  • Introduced through: openssl@1.1.1-1ubuntu2.1~18.04.6 and openssl/libssl1.1@1.1.1-1ubuntu2.1~18.04.6
  • Fixed in: 1.1.1-1ubuntu2.1~18.04.8

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* openssl@1.1.1-1ubuntu2.1~18.04.6
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* openssl/libssl1.1@1.1.1-1ubuntu2.1~18.04.6

NVD Description

Note: Versions mentioned in the description apply to the upstream openssl package. See Remediation section below for Ubuntu:18.04 relevant versions.

The OpenSSL public API function X509_issuer_and_serial_hash() attempts to create a unique hash value based on the issuer and serial number data contained within an X509 certificate. However it fails to correctly handle any errors that may occur while parsing the issuer field (which might occur if the issuer field is maliciously constructed). This may subsequently result in a NULL pointer deref and a crash leading to a potential denial of service attack. The function X509_issuer_and_serial_hash() is never directly called by OpenSSL itself so applications are only vulnerable if they use this function directly and they use it on certificates that may have been obtained from untrusted sources. OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x).

Remediation

Upgrade Ubuntu:18.04 openssl to version 1.1.1-1ubuntu2.1~18.04.8 or higher.

References

medium severity

Integer Overflow or Wraparound

  • Vulnerable module: p11-kit/libp11-kit0
  • Introduced through: p11-kit/libp11-kit0@0.23.9-2
  • Fixed in: 0.23.9-2ubuntu0.1

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* p11-kit/libp11-kit0@0.23.9-2

NVD Description

Note: Versions mentioned in the description apply to the upstream p11-kit package. See Remediation section below for Ubuntu:18.04 relevant versions.

An issue was discovered in p11-kit 0.21.1 through 0.23.21. Multiple integer overflows have been discovered in the array allocations in the p11-kit library and the p11-kit list command, where overflow checks are missing before calling realloc or calloc.

Remediation

Upgrade Ubuntu:18.04 p11-kit to version 0.23.9-2ubuntu0.1 or higher.

References

medium severity

Out-of-bounds Read

  • Vulnerable module: p11-kit/libp11-kit0
  • Introduced through: p11-kit/libp11-kit0@0.23.9-2
  • Fixed in: 0.23.9-2ubuntu0.1

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* p11-kit/libp11-kit0@0.23.9-2

NVD Description

Note: Versions mentioned in the description apply to the upstream p11-kit package. See Remediation section below for Ubuntu:18.04 relevant versions.

An issue was discovered in p11-kit 0.21.1 through 0.23.21. A heap-based buffer over-read has been discovered in the RPC protocol used by thep11-kit server/remote commands and the client library. When the remote entity supplies a byte array through a serialized PKCS#11 function call, the receiving entity may allow the reading of up to 4 bytes of memory past the heap allocation.

Remediation

Upgrade Ubuntu:18.04 p11-kit to version 0.23.9-2ubuntu0.1 or higher.

References

medium severity

Out-of-bounds Write

  • Vulnerable module: p11-kit/libp11-kit0
  • Introduced through: p11-kit/libp11-kit0@0.23.9-2
  • Fixed in: 0.23.9-2ubuntu0.1

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* p11-kit/libp11-kit0@0.23.9-2

NVD Description

Note: Versions mentioned in the description apply to the upstream p11-kit package. See Remediation section below for Ubuntu:18.04 relevant versions.

An issue was discovered in p11-kit 0.23.6 through 0.23.21. A heap-based buffer overflow has been discovered in the RPC protocol used by p11-kit server/remote commands and the client library. When the remote entity supplies a serialized byte array in a CK_ATTRIBUTE, the receiving entity may not allocate sufficient length for the buffer to store the deserialized value.

Remediation

Upgrade Ubuntu:18.04 p11-kit to version 0.23.9-2ubuntu0.1 or higher.

References

low severity

Improper Check for Dropped Privileges

  • Vulnerable module: bash
  • Introduced through: bash@4.4.18-2ubuntu1.2

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* bash@4.4.18-2ubuntu1.2

NVD Description

Note: Versions mentioned in the description apply to the upstream bash package.

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

There is no fixed version for Ubuntu:18.04 bash.

References

low severity

Improper Input Validation

  • Vulnerable module: coreutils
  • Introduced through: coreutils@8.28-1ubuntu1

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* coreutils@8.28-1ubuntu1

NVD Description

Note: Versions mentioned in the description apply to the upstream coreutils package.

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:18.04 coreutils.

References

low severity

Improper Data Handling

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.27-3ubuntu1.2, glibc/libc6@2.27-3ubuntu1.2 and others

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/libc-bin@2.27-3ubuntu1.2
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/libc6@2.27-3ubuntu1.2
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/multiarch-support@2.27-3ubuntu1.2

NVD Description

Note: Versions mentioned in the description apply to the upstream glibc package.

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

There is no fixed version for Ubuntu:18.04 glibc.

References

low severity

Improper Data Handling

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.27-3ubuntu1.2, glibc/libc6@2.27-3ubuntu1.2 and others

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/libc-bin@2.27-3ubuntu1.2
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/libc6@2.27-3ubuntu1.2
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/multiarch-support@2.27-3ubuntu1.2

NVD Description

Note: Versions mentioned in the description apply to the upstream glibc package.

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:18.04 glibc.

References

low severity

Improper Input Validation

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.27-3ubuntu1.2, glibc/libc6@2.27-3ubuntu1.2 and others

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/libc-bin@2.27-3ubuntu1.2
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/libc6@2.27-3ubuntu1.2
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/multiarch-support@2.27-3ubuntu1.2

NVD Description

Note: Versions mentioned in the description apply to the upstream glibc package.

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

There is no fixed version for Ubuntu:18.04 glibc.

References

low severity

Improper Input Validation

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.27-3ubuntu1.2, glibc/libc6@2.27-3ubuntu1.2 and others

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/libc-bin@2.27-3ubuntu1.2
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/libc6@2.27-3ubuntu1.2
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/multiarch-support@2.27-3ubuntu1.2

NVD Description

Note: Versions mentioned in the description apply to the upstream glibc package.

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:18.04 glibc.

References

low severity

Integer Underflow

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.27-3ubuntu1.2, glibc/libc6@2.27-3ubuntu1.2 and others

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/libc-bin@2.27-3ubuntu1.2
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/libc6@2.27-3ubuntu1.2
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/multiarch-support@2.27-3ubuntu1.2

NVD Description

Note: Versions mentioned in the description apply to the upstream glibc package.

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

There is no fixed version for Ubuntu:18.04 glibc.

References

low severity

Loop with Unreachable Exit Condition ('Infinite Loop')

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.27-3ubuntu1.2, glibc/libc6@2.27-3ubuntu1.2 and others

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/libc-bin@2.27-3ubuntu1.2
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/libc6@2.27-3ubuntu1.2
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/multiarch-support@2.27-3ubuntu1.2

NVD Description

Note: Versions mentioned in the description apply to the upstream glibc package.

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

There is no fixed version for Ubuntu:18.04 glibc.

References

low severity

Out-of-bounds Read

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.27-3ubuntu1.2, glibc/libc6@2.27-3ubuntu1.2 and others

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/libc-bin@2.27-3ubuntu1.2
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/libc6@2.27-3ubuntu1.2
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/multiarch-support@2.27-3ubuntu1.2

NVD Description

Note: Versions mentioned in the description apply to the upstream glibc package.

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

There is no fixed version for Ubuntu:18.04 glibc.

References

low severity
new

Reachable Assertion

  • Vulnerable module: glibc/libc-bin
  • Introduced through: glibc/libc-bin@2.27-3ubuntu1.2, glibc/libc6@2.27-3ubuntu1.2 and others

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/libc-bin@2.27-3ubuntu1.2
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/libc6@2.27-3ubuntu1.2
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* glibc/multiarch-support@2.27-3ubuntu1.2

NVD Description

Note: Versions mentioned in the description apply to the upstream glibc package.

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

There is no fixed version for Ubuntu:18.04 glibc.

References

low severity

Improper Certificate Validation

  • Vulnerable module: gnupg2/gpgv
  • Introduced through: gnupg2/gpgv@2.2.4-1ubuntu1.2

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* gnupg2/gpgv@2.2.4-1ubuntu1.2

NVD Description

Note: Versions mentioned in the description apply to the upstream gnupg2 package.

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:18.04 gnupg2.

References

low severity

Use of a Broken or Risky Cryptographic Algorithm

  • Vulnerable module: gnupg2/gpgv
  • Introduced through: gnupg2/gpgv@2.2.4-1ubuntu1.2
  • Fixed in: 2.2.4-1ubuntu1.3

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* gnupg2/gpgv@2.2.4-1ubuntu1.2

NVD Description

Note: Versions mentioned in the description apply to the upstream gnupg2 package. See Remediation section below for Ubuntu:18.04 relevant versions.

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

Upgrade Ubuntu:18.04 gnupg2 to version 2.2.4-1ubuntu1.3 or higher.

References

low severity

Information Exposure

  • Vulnerable module: gnutls28/libgnutls30
  • Introduced through: gnutls28/libgnutls30@3.5.18-1ubuntu1.4

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* gnutls28/libgnutls30@3.5.18-1ubuntu1.4

NVD Description

Note: Versions mentioned in the description apply to the upstream gnutls28 package.

A Bleichenbacher type side-channel based padding oracle attack was found in the way gnutls handles verification of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run process on the same physical core as the victim process, could use this to extract plaintext or in some cases downgrade any TLS connections to a vulnerable server.

Remediation

There is no fixed version for Ubuntu:18.04 gnutls28.

References

low severity

Information Exposure

  • Vulnerable module: libgcrypt20
  • Introduced through: libgcrypt20@1.8.1-4ubuntu1.2

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* libgcrypt20@1.8.1-4ubuntu1.2

NVD Description

Note: Versions mentioned in the description apply to the upstream libgcrypt20 package.

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. (There is also an interoperability problem because the selection of the k integer value does not properly consider the differences between basic ElGamal encryption and generalized ElGamal encryption.) This, for example, affects use of ElGamal in OpenPGP.

Remediation

There is no fixed version for Ubuntu:18.04 libgcrypt20.

References

low severity

Resource Management Errors

  • Vulnerable module: libtasn1-6
  • Introduced through: libtasn1-6@4.13-2

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* libtasn1-6@4.13-2

NVD Description

Note: Versions mentioned in the description apply to the upstream libtasn1-6 package.

GNU Libtasn1-4.13 libtasn1-4.13 version libtasn1-4.13, libtasn1-4.12 contains a DoS, specifically CPU usage will reach 100% when running asn1Paser against the POC due to an issue in _asn1_expand_object_id(p_tree), after a long time, the program will be killed. This attack appears to be exploitable via parsing a crafted file.

Remediation

There is no fixed version for Ubuntu:18.04 libtasn1-6.

References

low severity

Out-of-bounds Read

  • Vulnerable module: ncurses/libncurses5
  • Introduced through: ncurses/libncurses5@6.1-1ubuntu1.18.04, ncurses/libncursesw5@6.1-1ubuntu1.18.04 and others

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* ncurses/libncurses5@6.1-1ubuntu1.18.04
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* ncurses/libncursesw5@6.1-1ubuntu1.18.04
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* ncurses/libtinfo5@6.1-1ubuntu1.18.04
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* ncurses/ncurses-base@6.1-1ubuntu1.18.04
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* ncurses/ncurses-bin@6.1-1ubuntu1.18.04

NVD Description

Note: Versions mentioned in the description apply to the upstream ncurses package.

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

There is no fixed version for Ubuntu:18.04 ncurses.

References

low severity

Out-of-bounds Read

  • Vulnerable module: ncurses/libncurses5
  • Introduced through: ncurses/libncurses5@6.1-1ubuntu1.18.04, ncurses/libncursesw5@6.1-1ubuntu1.18.04 and others

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* ncurses/libncurses5@6.1-1ubuntu1.18.04
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* ncurses/libncursesw5@6.1-1ubuntu1.18.04
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* ncurses/libtinfo5@6.1-1ubuntu1.18.04
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* ncurses/ncurses-base@6.1-1ubuntu1.18.04
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* ncurses/ncurses-bin@6.1-1ubuntu1.18.04

NVD Description

Note: Versions mentioned in the description apply to the upstream ncurses package.

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

There is no fixed version for Ubuntu:18.04 ncurses.

References

low severity

Information Exposure

  • Vulnerable module: nettle/libhogweed4
  • Introduced through: nettle/libhogweed4@3.4-1 and nettle/libnettle6@3.4-1
  • Fixed in: 3.4.1-0ubuntu0.18.04.1

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* nettle/libhogweed4@3.4-1
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* nettle/libnettle6@3.4-1

NVD Description

Note: Versions mentioned in the description apply to the upstream nettle package. See Remediation section below for Ubuntu:18.04 relevant versions.

A Bleichenbacher type side-channel based padding oracle attack was found in the way nettle handles endian conversion of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run a process on the same physical core as the victim process, could use this flaw extract plaintext or in some cases downgrade any TLS connections to a vulnerable server.

Remediation

Upgrade Ubuntu:18.04 nettle to version 3.4.1-0ubuntu0.18.04.1 or higher.

References

low severity

Integer Overflow or Wraparound

  • Vulnerable module: openssl
  • Introduced through: openssl@1.1.1-1ubuntu2.1~18.04.6 and openssl/libssl1.1@1.1.1-1ubuntu2.1~18.04.6
  • Fixed in: 1.1.1-1ubuntu2.1~18.04.8

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* openssl@1.1.1-1ubuntu2.1~18.04.6
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* openssl/libssl1.1@1.1.1-1ubuntu2.1~18.04.6

NVD Description

Note: Versions mentioned in the description apply to the upstream openssl package. See Remediation section below for Ubuntu:18.04 relevant versions.

Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is close to the maximum permissable length for an integer on the platform. In such cases the return value from the function call will be 1 (indicating success), but the output length value will be negative. This could cause applications to behave incorrectly or crash. OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x).

Remediation

Upgrade Ubuntu:18.04 openssl to version 1.1.1-1ubuntu2.1~18.04.8 or higher.

References

low severity

Integer Overflow or Wraparound

  • Vulnerable module: pcre3/libpcre3
  • Introduced through: pcre3/libpcre3@2:8.39-9

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* pcre3/libpcre3@2:8.39-9

NVD Description

Note: Versions mentioned in the description apply to the upstream pcre3 package.

libpcre in PCRE before 8.44 allows an integer overflow via a large number after a (?C substring.

Remediation

There is no fixed version for Ubuntu:18.04 pcre3.

References

low severity

Out-of-bounds Read

  • Vulnerable module: pcre3/libpcre3
  • Introduced through: pcre3/libpcre3@2:8.39-9

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* pcre3/libpcre3@2:8.39-9

NVD Description

Note: Versions mentioned in the description apply to the upstream pcre3 package.

libpcre in PCRE before 8.43 allows a subject buffer over-read in JIT when UTF is disabled, and \X or \R has more than one fixed quantifier, a related issue to CVE-2019-20454.

Remediation

There is no fixed version for Ubuntu:18.04 pcre3.

References

low severity

Uncontrolled Recursion

  • Vulnerable module: pcre3/libpcre3
  • Introduced through: pcre3/libpcre3@2:8.39-9

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* pcre3/libpcre3@2:8.39-9

NVD Description

Note: Versions mentioned in the description apply to the upstream pcre3 package.

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:18.04 pcre3.

References

low severity

Buffer Overflow

  • Vulnerable module: perl/perl-base
  • Introduced through: perl/perl-base@5.26.1-6ubuntu0.3
  • Fixed in: 5.26.1-6ubuntu0.5

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* perl/perl-base@5.26.1-6ubuntu0.3

NVD Description

Note: Versions mentioned in the description apply to the upstream perl package. See Remediation section below for Ubuntu:18.04 relevant versions.

regcomp.c in Perl before 5.30.3 allows a buffer overflow via a crafted regular expression because of recursive S_study_chunk calls. An application written in Perl would only be vulnerable to this flaw if it evaluates regular expressions supplied by the attacker. Evaluating regular expressions in this fashion is known to be dangerous since the regular expression engine does not protect against denial of service attacks in this usage scenario.]

Remediation

Upgrade Ubuntu:18.04 perl to version 5.26.1-6ubuntu0.5 or higher.

References

low severity

Integer Overflow or Wraparound

  • Vulnerable module: perl/perl-base
  • Introduced through: perl/perl-base@5.26.1-6ubuntu0.3
  • Fixed in: 5.26.1-6ubuntu0.5

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* perl/perl-base@5.26.1-6ubuntu0.3

NVD Description

Note: Versions mentioned in the description apply to the upstream perl package. See Remediation section below for Ubuntu:18.04 relevant versions.

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. An application written in Perl would only be vulnerable to this flaw if it evaluates regular expressions supplied by the attacker. Evaluating regular expressions in this fashion is known to be dangerous since the regular expression engine does not protect against denial of service attacks in this usage scenario.]

Remediation

Upgrade Ubuntu:18.04 perl to version 5.26.1-6ubuntu0.5 or higher.

References

low severity

Out-of-bounds Write

  • Vulnerable module: perl/perl-base
  • Introduced through: perl/perl-base@5.26.1-6ubuntu0.3
  • Fixed in: 5.26.1-6ubuntu0.5

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* perl/perl-base@5.26.1-6ubuntu0.3

NVD Description

Note: Versions mentioned in the description apply to the upstream perl package. See Remediation section below for Ubuntu:18.04 relevant versions.

Perl before 5.30.3 on 32-bit platforms allows a heap-based buffer overflow because nested regular expression quantifiers have an integer overflow. An application written in Perl would only be vulnerable to this flaw if it evaluates regular expressions supplied by the attacker. Evaluating regular expressions in this fashion is known to be dangerous since the regular expression engine does not protect against denial of service attacks in this usage scenario. Additionally, the target system needs a sufficient amount of memory to allocate partial expansions of the nested quantifiers prior to the overflow occurring. This requirement is unlikely to be met on 64bit systems.]

Remediation

Upgrade Ubuntu:18.04 perl to version 5.26.1-6ubuntu0.5 or higher.

References

low severity

Incorrect Permission Assignment for Critical Resource

  • Vulnerable module: shadow/login
  • Introduced through: shadow/login@1:4.5-1ubuntu2 and shadow/passwd@1:4.5-1ubuntu2

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* shadow/login@1:4.5-1ubuntu2
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* shadow/passwd@1:4.5-1ubuntu2

NVD Description

Note: Versions mentioned in the description apply to the upstream shadow package.

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

There is no fixed version for Ubuntu:18.04 shadow.

References

low severity

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

  • Vulnerable module: shadow/login
  • Introduced through: shadow/login@1:4.5-1ubuntu2 and shadow/passwd@1:4.5-1ubuntu2

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* shadow/login@1:4.5-1ubuntu2
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* shadow/passwd@1:4.5-1ubuntu2

NVD Description

Note: Versions mentioned in the description apply to the upstream shadow package.

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

Remediation

There is no fixed version for Ubuntu:18.04 shadow.

References

low severity

Authentication Bypass

  • Vulnerable module: systemd/libsystemd0
  • Introduced through: systemd/libsystemd0@237-3ubuntu10.42 and systemd/libudev1@237-3ubuntu10.42
  • Fixed in: 237-3ubuntu10.49

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* systemd/libsystemd0@237-3ubuntu10.42
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* systemd/libudev1@237-3ubuntu10.42

NVD Description

Note: Versions mentioned in the description apply to the upstream systemd package. See Remediation section below for Ubuntu:18.04 relevant versions.

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:18.04 systemd to version 237-3ubuntu10.49 or higher.

References

low severity

Loop with Unreachable Exit Condition ('Infinite Loop')

  • Vulnerable module: tar
  • Introduced through: tar@1.29b-2ubuntu0.1
  • Fixed in: 1.29b-2ubuntu0.2

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* tar@1.29b-2ubuntu0.1

NVD Description

Note: Versions mentioned in the description apply to the upstream tar package. See Remediation section below for Ubuntu:18.04 relevant versions.

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:18.04 tar to version 1.29b-2ubuntu0.2 or higher.

References

low severity

NULL Pointer Dereference

  • Vulnerable module: tar
  • Introduced through: tar@1.29b-2ubuntu0.1
  • Fixed in: 1.29b-2ubuntu0.2

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* tar@1.29b-2ubuntu0.1

NVD Description

Note: Versions mentioned in the description apply to the upstream tar package. See Remediation section below for Ubuntu:18.04 relevant versions.

pax_decode_header in sparse.c in GNU Tar before 1.32 had a NULL pointer dereference when parsing certain archives that have malformed extended headers.

Remediation

Upgrade Ubuntu:18.04 tar to version 1.29b-2ubuntu0.2 or higher.

References

low severity

Access Restriction Bypass

  • Vulnerable module: util-linux
  • Introduced through: util-linux@2.31.1-0.4ubuntu3.6, util-linux/fdisk@2.31.1-0.4ubuntu3.6 and others
  • Fixed in: 2.31.1-0.4ubuntu3.7

Detailed paths

  • Introduced through: concourse/concourse:6.5.0-ubuntu@* util-linux@2.31.1-0.4ubuntu3.6
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* util-linux/fdisk@2.31.1-0.4ubuntu3.6
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* util-linux/libblkid1@2.31.1-0.4ubuntu3.6
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* util-linux/libfdisk1@2.31.1-0.4ubuntu3.6
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* util-linux/libmount1@2.31.1-0.4ubuntu3.6
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* util-linux/libsmartcols1@2.31.1-0.4ubuntu3.6
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* util-linux/libuuid1@2.31.1-0.4ubuntu3.6
  • Introduced through: concourse/concourse:6.5.0-ubuntu@* util-linux/mount@2.31.1-0.4ubuntu3.6

NVD Description

Note: Versions mentioned in the description apply to the upstream util-linux package. See Remediation section below for Ubuntu:18.04 relevant versions.

In util-linux before 2.32-rc1, bash-completion/umount allows local users to gain privileges by embedding shell commands in a mountpoint name, which is mishandled during a umount command (within Bash) by a different user, as demonstrated by logging in as root and entering umount followed by a tab character for autocompletion.

Remediation

Upgrade Ubuntu:18.04 util-linux to version 2.31.1-0.4ubuntu3.7 or higher.

References