Docker amazonlinux:2.0.20190823.1

Vulnerabilities

64 via 64 paths

Dependencies

104

Source

Group 6 Copy Created with Sketch. Docker

Target OS

amzn:2
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Severity
  • 9
  • 53
  • 2
Status
  • 64
  • 0
  • 0

high severity

ALAS2-2019-1298

  • Vulnerable module: libnghttp2
  • Introduced through: libnghttp2@1.31.1-1.amzn2.0.2
  • Fixed in: 1.39.2-1.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* libnghttp2@1.31.1-1.amzn2.0.2

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-9513: Some HTTP/2 implementations are vulnerable to resource loops, potentially leading to a denial of service. The attacker creates multiple request streams and continually shuffles the priority of the streams in a way that causes substantial churn to the priority tree. This can consume excess CPU. 1735741: CVE-2019-9513 HTTP/2: flood using PRIORITY frames results in excessive resource consumption CVE-2019-9511: Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service. The attacker requests a large amount of data from a specified resource over multiple streams. They manipulate window size and stream priority to force the server to queue the data in 1-byte chunks. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both. 1741860: CVE-2019-9511 HTTP/2: large amount of data requests leads to denial of service

References

high severity

ALAS2-2020-1445

  • Vulnerable module: libnghttp2
  • Introduced through: libnghttp2@1.31.1-1.amzn2.0.2
  • Fixed in: 1.41.0-1.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* libnghttp2@1.31.1-1.amzn2.0.2

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1445. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2020-11080: In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes (2400 individual settings entries) over and over again. The attack causes the CPU to spike at 100%. nghttp2 v1.41.0 fixes this vulnerability. There is a workaround to this vulnerability. Implement nghttp2_on_frame_recv_callback callback, and if received frame is SETTINGS frame and the number of settings entries are large (e.g., > 32), then drop the connection. 1844929: CVE-2020-11080 nghttp2: overly large SETTINGS frames can lead to DoS

Remediation

Upgrade libnghttp2 to version or higher.

References

high severity

ALAS2-2020-1466

  • Vulnerable module: libxml2
  • Introduced through: libxml2@2.9.1-6.amzn2.3.2
  • Fixed in: 2.9.1-6.amzn2.4.1

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* libxml2@2.9.1-6.amzn2.3.2

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1466. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2018-14567: libxml2 2.9.8, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint, a different vulnerability than CVE-2015-8035 and CVE-2018-9251. 1619875: CVE-2018-14567 libxml2: Infinite loop caused by incorrect error detection during LZMA decompression CVE-2018-14404: 1595985: CVE-2018-14404 libxml2: NULL pointer dereference in xmlXPathCompOpEval() function in xpath.c A NULL pointer dereference vulnerability exists in the xpath.c:xmlXPathCompOpEval() function of libxml2 through 2.9.8 when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case. Applications processing untrusted XSL format inputs with the use of the libxml2 library may be vulnerable to a denial of service attack due to a crash of the application. CVE-2017-18258: The xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate file. 1566749: CVE-2017-18258 libxml2: Unrestricted memory usage in xz_head() function in xzlib.c CVE-2017-15412: Use after free in libxml2 before 2.9.5, as used in Google Chrome prior to 63.0.3239.84 and other products, allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. 1523128: CVE-2017-15412 libxml2: Use after free in xmlXPathCompOpEvalPositionalPredicate() function in xpath.c CVE-2016-5131: Use-after-free vulnerability in libxml2 through 2.9.4, as used in Google Chrome before 52.0.2743.82, allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to the XPointer range-to function. 1358641: CVE-2016-5131 libxml2: Use after free triggered by XPointer paths beginning with range-to CVE-2015-8035: 1277146: CVE-2015-8035 libxml2: DoS caused by incorrect error detection during XZ decompression The xz_decomp function in xzlib.c in libxml2 2.9.1 does not properly detect compression errors, which allows context-dependent attackers to cause a denial of service (process hang) via crafted XML data.

Remediation

Upgrade libxml2 to version or higher.

References

high severity

ALAS2-2020-1384

  • Vulnerable module: nss
  • Introduced through: nss@3.36.0-7.amzn2
  • Fixed in: 3.44.0-7.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* nss@3.36.0-7.amzn2

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-11745: 99999: CVE-2019-11745 nss: Out-of-bounds write when passing an output buffer smaller than the block size to NSC_EncryptUpdate A heap-based buffer overflow was found in the NSC_EncryptUpdate() function in Mozilla nss. A remote attacker could trigger this flaw via SRTP encrypt or decrypt operations, to execute arbitrary code with the permissions of the user running the application (compiled with nss). While the attack complexity is high, the impact to confidentiality, integrity, and availability are high as well. CVE-2019-11729: 99999: CVE-2019-11729 nss: Empty or malformed p256-ECDH public keys may trigger a segmentation fault Empty or malformed p256-ECDH public keys may trigger a segmentation fault due values being improperly sanitized before being copied into memory and used. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.

References

high severity

ALAS2-2020-1384

  • Vulnerable module: nss-sysinit
  • Introduced through: nss-sysinit@3.36.0-7.amzn2
  • Fixed in: 3.44.0-7.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* nss-sysinit@3.36.0-7.amzn2

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-11745: 99999: CVE-2019-11745 nss: Out-of-bounds write when passing an output buffer smaller than the block size to NSC_EncryptUpdate A heap-based buffer overflow was found in the NSC_EncryptUpdate() function in Mozilla nss. A remote attacker could trigger this flaw via SRTP encrypt or decrypt operations, to execute arbitrary code with the permissions of the user running the application (compiled with nss). While the attack complexity is high, the impact to confidentiality, integrity, and availability are high as well. CVE-2019-11729: 99999: CVE-2019-11729 nss: Empty or malformed p256-ECDH public keys may trigger a segmentation fault Empty or malformed p256-ECDH public keys may trigger a segmentation fault due values being improperly sanitized before being copied into memory and used. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.

References

high severity

ALAS2-2020-1384

  • Vulnerable module: nss-tools
  • Introduced through: nss-tools@3.36.0-7.amzn2
  • Fixed in: 3.44.0-7.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* nss-tools@3.36.0-7.amzn2

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-11745: 99999: CVE-2019-11745 nss: Out-of-bounds write when passing an output buffer smaller than the block size to NSC_EncryptUpdate A heap-based buffer overflow was found in the NSC_EncryptUpdate() function in Mozilla nss. A remote attacker could trigger this flaw via SRTP encrypt or decrypt operations, to execute arbitrary code with the permissions of the user running the application (compiled with nss). While the attack complexity is high, the impact to confidentiality, integrity, and availability are high as well. CVE-2019-11729: 99999: CVE-2019-11729 nss: Empty or malformed p256-ECDH public keys may trigger a segmentation fault Empty or malformed p256-ECDH public keys may trigger a segmentation fault due values being improperly sanitized before being copied into memory and used. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.

References

high severity

ALAS2-2020-1406

  • Vulnerable module: openssl-libs
  • Introduced through: openssl-libs@1:1.0.2k-16.amzn2.1.1
  • Fixed in: 1:1.0.2k-19.amzn2.0.3

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* openssl-libs@1:1.0.2k-16.amzn2.1.1

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-1563: In situations where an attacker receives automated notification of the success or failure of a decryption attempt an attacker, after sending a very large number of messages to be decrypted, can recover a CMS/PKCS7 transported encryption key or decrypt any RSA encrypted message that was encrypted with the public RSA key, using a Bleichenbacher padding oracle attack. Applications are not affected if they use a certificate together with the private RSA key to the CMS_decrypt or PKCS7_decrypt functions to select the correct recipient info to decrypt. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c). Fixed in OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k). Fixed in OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s). 1752100: CVE-2019-1563 openssl: information disclosure in PKCS7_dataDecode and CMS_decrypt_set1_pkey CVE-2019-1547: Normally in OpenSSL EC groups always have a co-factor present and this is used in side channel resistant code paths. However, in some cases, it is possible to construct a group using explicit parameters (instead of using a named curve). In those cases it is possible that such a group does not have the cofactor present. This can occur even where all the parameters match a known named curve. If such a curve is used then OpenSSL falls back to non-side channel resistant code paths which may result in full key recovery during an ECDSA signature operation. In order to be vulnerable an attacker would have to have the ability to time the creation of a large number of signatures where explicit parameters with no co-factor present are in use by an application using libcrypto. For the avoidance of doubt libssl is not vulnerable because explicit parameters are never used. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c). Fixed in OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k). Fixed in OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s). 1752090: CVE-2019-1547 openssl: side-channel weak encryption vulnerability

References

high severity

ALAS2-2020-1573

  • Vulnerable module: openssl-libs
  • Introduced through: openssl-libs@1:1.0.2k-16.amzn2.1.1
  • Fixed in: 1:1.0.2k-19.amzn2.0.4

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* openssl-libs@1:1.0.2k-16.amzn2.1.1

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1573. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2020-1971: 1903409: CVE-2020-1971 openssl: EDIPARTYNAME NULL pointer de-reference A null pointer dereference flaw was found in openssl. A remote attacker, able to control the arguments of the GENERAL_NAME_cmp function, could cause the application, compiled with openssl to crash resulting in a denial of service. The highest threat from this vulnerability is to system availability.

Remediation

Upgrade openssl-libs to version or higher.

References

high severity

ALAS2-2020-1394

  • Vulnerable module: sqlite
  • Introduced through: sqlite@3.7.17-8.amzn2.0.2
  • Fixed in: 3.7.17-8.amzn2.1.1

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* sqlite@3.7.17-8.amzn2.0.2

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-13734: 1781980: CVE-2019-13734 sqlite: fts3: improve shadow table corruption detection Out of bounds write in SQLite in Google Chrome prior to 79.0.3945.79 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

References

medium severity

ALAS2-2020-1503

  • Vulnerable module: bash
  • Introduced through: bash@4.2.46-30.amzn2
  • Fixed in: 4.2.46-34.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* bash@4.2.46-30.amzn2

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1503. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-9924: 1691774: CVE-2019-9924 bash: BASH_CMD is writable in restricted bash shells rbash in Bash before 4.4-beta2 did not prevent the shell user from modifying BASH_CMDS, thus allowing the user to execute any command with the permissions of the shell.

Remediation

Upgrade bash to version or higher.

References

medium severity

ALAS2-2020-1505

  • Vulnerable module: cpio
  • Introduced through: cpio@2.11-27.amzn2
  • Fixed in: 2.11-28.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* cpio@2.11-27.amzn2

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1505. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-14866: 1765511: CVE-2019-14866 cpio: improper input validation when writing tar header fields leads to unexpect tar generation It was discovered cpio does not properly validate input files when generating TAR archives. When cpio is used to create TAR archives from paths an attacker can write to, the resulting archive may contain files with permissions the attacker did not have or in paths he did not have access to. Extracting those archives from a high-privilege user without carefully reviewing them may lead to the compromise of the system.

Remediation

Upgrade cpio to version or higher.

References

medium severity

ALAS2-2019-1340

  • Vulnerable module: curl
  • Introduced through: curl@7.61.1-11.amzn2.0.2
  • Fixed in: 7.61.1-12.amzn2.0.1

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* curl@7.61.1-11.amzn2.0.2

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-5482: Heap buffer overflow in the TFTP protocol handler in cURL 7.19.4 to 7.65.3. 99999: CVE-2019-5482 curl: heap buffer overflow in function tftp_receive_packet() CVE-2019-5481: 99999: CVE-2019-5481 curl: double free due to subsequent call of realloc() Double-free vulnerability in the FTP-kerberos code in cURL 7.52.0 to 7.65.3.

References

medium severity

ALAS2-2020-1451

  • Vulnerable module: curl
  • Introduced through: curl@7.61.1-11.amzn2.0.2
  • Fixed in: 7.61.1-12.amzn2.0.2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* curl@7.61.1-11.amzn2.0.2

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1451. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2020-8177: No description is available for this CVE. 1847915: CVE-2020-8177 curl: command line arguments lead to local file overwrite

Remediation

Upgrade curl to version or higher.

References

medium severity

ALAS2-2020-1513

  • Vulnerable module: expat
  • Introduced through: expat@2.1.0-10.amzn2.0.2
  • Fixed in: 2.1.0-12.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* expat@2.1.0-10.amzn2.0.2

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1513. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-15903: In libexpat before 2.2.8, crafted XML input could fool the parser into changing from DTD parsing to document parsing too early; a consecutive call to XML_GetCurrentLineNumber (or XML_GetCurrentColumnNumber) then resulted in a heap-based buffer over-read. 1752592: CVE-2019-15903 expat: heap-based buffer over-read via crafted XML input CVE-2018-20843: It was discovered that the "setElementTypePrefix()" function incorrectly extracted XML namespace prefixes. By tricking an application into processing a specially crafted XML file, an attacker could cause unusually high consumption of memory resources and possibly lead to a denial of service. 1723723: CVE-2018-20843 expat: large number of colons in input makes parser consume high amount of resources, leading to DoS

Remediation

Upgrade expat to version or higher.

References

medium severity

ALAS2-2019-1370

  • Vulnerable module: file-libs
  • Introduced through: file-libs@5.11-33.amzn2.0.2
  • Fixed in: 5.11-35.amzn2.0.2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* file-libs@5.11-33.amzn2.0.2

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-18218: 1765272: CVE-2019-18218 file: heap-based buffer overflow in cdf_read_property_info in cdf.c cdf_read_property_info in cdf.c in file through 5.37 does not restrict the number of CDF_VECTOR elements, which allows a heap-based buffer overflow (4-byte out-of-bounds write).

References

medium severity

ALAS2-2019-1289

  • Vulnerable module: glib2
  • Introduced through: glib2@2.54.2-2.amzn2
  • Fixed in: 2.56.1-4.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* glib2@2.54.2-2.amzn2

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-12450: file_copy_fallback in gio/gfile.c in GNOME GLib 2.15.0 through 2.61.1 does not properly restrict file permissions while a copy operation is in progress. Instead, default permissions are used. 1719141: CVE-2019-12450 glib2: file_copy_fallback in gio/gfile.c in GNOME GLib does not properly restrict file permissions while a copy operation is in progress

References

medium severity

ALAS2-2020-1553

  • Vulnerable module: glib2
  • Introduced through: glib2@2.54.2-2.amzn2
  • Fixed in: 2.56.1-7.amzn2.0.1

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* glib2@2.54.2-2.amzn2

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1553. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-12450: file_copy_fallback in gio/gfile.c in GNOME GLib 2.15.0 through 2.61.1 does not properly restrict file permissions while a copy operation is in progress. Instead, default permissions are used. 1719141: CVE-2019-12450 glib2: file_copy_fallback in gio/gfile.c in GNOME GLib does not properly restrict file permissions while a copy operation is in progress 1719141: CVE-2019-12450 glib2: file_copy_fallback in gio/gfile.c in GNOME GLib does not properly restrict file permissions while a copy operation is in progress

Remediation

Upgrade glib2 to version or higher.

References

medium severity

ALAS2-2020-1382

  • Vulnerable module: glibc
  • Introduced through: glibc@2.26-32.amzn2.0.1
  • Fixed in: 2.26-33.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* glibc@2.26-32.amzn2.0.1

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2016-10739: 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. 99999: CVE-2016-10739 glibc: getaddrinfo should reject IP addresses with trailing characters

References

medium severity

ALAS2-2020-1517

  • Vulnerable module: glibc
  • Introduced through: glibc@2.26-32.amzn2.0.1
  • Fixed in: 2.26-36.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* glibc@2.26-32.amzn2.0.1

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1517. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2016-10739: 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. 1347549: CVE-2016-10739 glibc: getaddrinfo should reject IP addresses with trailing characters

Remediation

Upgrade glibc to version or higher.

References

medium severity

ALAS2-2020-1382

  • Vulnerable module: glibc-common
  • Introduced through: glibc-common@2.26-32.amzn2.0.1
  • Fixed in: 2.26-33.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* glibc-common@2.26-32.amzn2.0.1

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2016-10739: 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. 99999: CVE-2016-10739 glibc: getaddrinfo should reject IP addresses with trailing characters

References

medium severity

ALAS2-2020-1517

  • Vulnerable module: glibc-common
  • Introduced through: glibc-common@2.26-32.amzn2.0.1
  • Fixed in: 2.26-36.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* glibc-common@2.26-32.amzn2.0.1

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1517. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2016-10739: 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. 1347549: CVE-2016-10739 glibc: getaddrinfo should reject IP addresses with trailing characters

Remediation

Upgrade glibc-common to version or higher.

References

medium severity

ALAS2-2020-1382

  • Vulnerable module: glibc-langpack-en
  • Introduced through: glibc-langpack-en@2.26-32.amzn2.0.1
  • Fixed in: 2.26-33.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* glibc-langpack-en@2.26-32.amzn2.0.1

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2016-10739: 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. 99999: CVE-2016-10739 glibc: getaddrinfo should reject IP addresses with trailing characters

References

medium severity

ALAS2-2020-1517

  • Vulnerable module: glibc-langpack-en
  • Introduced through: glibc-langpack-en@2.26-32.amzn2.0.1
  • Fixed in: 2.26-36.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* glibc-langpack-en@2.26-32.amzn2.0.1

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1517. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2016-10739: 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. 1347549: CVE-2016-10739 glibc: getaddrinfo should reject IP addresses with trailing characters

Remediation

Upgrade glibc-langpack-en to version or higher.

References

medium severity

ALAS2-2020-1382

  • Vulnerable module: glibc-minimal-langpack
  • Introduced through: glibc-minimal-langpack@2.26-32.amzn2.0.1
  • Fixed in: 2.26-33.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* glibc-minimal-langpack@2.26-32.amzn2.0.1

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2016-10739: 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. 99999: CVE-2016-10739 glibc: getaddrinfo should reject IP addresses with trailing characters

References

medium severity

ALAS2-2020-1517

  • Vulnerable module: glibc-minimal-langpack
  • Introduced through: glibc-minimal-langpack@2.26-32.amzn2.0.1
  • Fixed in: 2.26-36.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* glibc-minimal-langpack@2.26-32.amzn2.0.1

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1517. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2016-10739: 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. 1347549: CVE-2016-10739 glibc: getaddrinfo should reject IP addresses with trailing characters

Remediation

Upgrade glibc-minimal-langpack to version or higher.

References

medium severity

ALAS2-2020-1509

  • Vulnerable module: libcom_err
  • Introduced through: libcom_err@1.42.9-12.amzn2.0.2
  • Fixed in: 1.42.9-19.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* libcom_err@1.42.9-12.amzn2.0.2

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1509. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-5188: 1790048: CVE-2019-5188 e2fsprogs: Out-of-bounds write in e2fsck/rehash.c 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. CVE-2019-5094: 1768555: CVE-2019-5094 e2fsprogs: Crafted ext4 partition leads to out-of-bounds write An exploitable code execution vulnerability exists in the quota file functionality of E2fsprogs 1.45.3. A specially crafted ext4 partition can cause an out-of-bounds write on the heap, resulting in code execution. An attacker can corrupt a partition to trigger this vulnerability.

Remediation

Upgrade libcom_err to version or higher.

References

medium severity

ALAS2-2020-1382

  • Vulnerable module: libcrypt
  • Introduced through: libcrypt@2.26-32.amzn2.0.1
  • Fixed in: 2.26-33.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* libcrypt@2.26-32.amzn2.0.1

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2016-10739: 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. 99999: CVE-2016-10739 glibc: getaddrinfo should reject IP addresses with trailing characters

References

medium severity

ALAS2-2020-1517

  • Vulnerable module: libcrypt
  • Introduced through: libcrypt@2.26-32.amzn2.0.1
  • Fixed in: 2.26-36.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* libcrypt@2.26-32.amzn2.0.1

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1517. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2016-10739: 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. 1347549: CVE-2016-10739 glibc: getaddrinfo should reject IP addresses with trailing characters

Remediation

Upgrade libcrypt to version or higher.

References

medium severity

ALAS2-2019-1340

  • Vulnerable module: libcurl
  • Introduced through: libcurl@7.61.1-11.amzn2.0.2
  • Fixed in: 7.61.1-12.amzn2.0.1

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* libcurl@7.61.1-11.amzn2.0.2

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-5482: Heap buffer overflow in the TFTP protocol handler in cURL 7.19.4 to 7.65.3. 99999: CVE-2019-5482 curl: heap buffer overflow in function tftp_receive_packet() CVE-2019-5481: 99999: CVE-2019-5481 curl: double free due to subsequent call of realloc() Double-free vulnerability in the FTP-kerberos code in cURL 7.52.0 to 7.65.3.

References

medium severity

ALAS2-2020-1451

  • Vulnerable module: libcurl
  • Introduced through: libcurl@7.61.1-11.amzn2.0.2
  • Fixed in: 7.61.1-12.amzn2.0.2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* libcurl@7.61.1-11.amzn2.0.2

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1451. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2020-8177: No description is available for this CVE. 1847915: CVE-2020-8177 curl: command line arguments lead to local file overwrite

Remediation

Upgrade libcurl to version or higher.

References

medium severity

ALAS2-2019-1373

  • Vulnerable module: libidn2
  • Introduced through: libidn2@2.0.4-1.amzn2.0.2
  • Fixed in: 2.3.0-1.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* libidn2@2.0.4-1.amzn2.0.2

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-18224: idn2_to_ascii_4i in lib/lookup.c in GNU libidn2 before 2.1.1 has a heap-based buffer overflow via a long domain string. 1764780: CVE-2019-18224 libidn2: heap-based buffer overflow in idn2_to_ascii_4i in lib/lookup.c CVE-2019-12290: 99999:

References

medium severity

ALAS2-2019-1303

  • Vulnerable module: libssh2
  • Introduced through: libssh2@1.4.3-12.amzn2.2.1
  • Fixed in: 1.4.3-12.amzn2.2.2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* libssh2@1.4.3-12.amzn2.2.1

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-3862: 1687312: CVE-2019-3862 libssh2: Out-of-bounds memory comparison with specially crafted message channel request An out of bounds read flaw was discovered in libssh2 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit status message and no payload are parsed. A remote attacker who compromises a SSH server may be able to cause a denial of service or read data in the client memory.

References

medium severity

ALAS2-2020-1531

  • Vulnerable module: libssh2
  • Introduced through: libssh2@1.4.3-12.amzn2.2.1
  • Fixed in: 1.4.3-12.amzn2.2.3

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* libssh2@1.4.3-12.amzn2.2.1

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1531. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-17498: 1766898: CVE-2019-17498 libssh2: integer overflow in SSH_MSG_DISCONNECT logic in packet.c In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server.

Remediation

Upgrade libssh2 to version or higher.

References

medium severity

ALAS2-2019-1301

  • Vulnerable module: libxml2
  • Introduced through: libxml2@2.9.1-6.amzn2.3.2
  • Fixed in: 2.9.1-6.amzn2.3.3

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* libxml2@2.9.1-6.amzn2.3.2

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2017-16931: parser.c in libxml2 before 2.9.5 mishandles parameter-entity references because the NEXTL macro calls the xmlParserHandlePEReference function in the case of a '%' character in a DTD name. 1517307: CVE-2017-16931 libxml2: Mishandling parameter-entity references CVE-2016-4658: 1384424: CVE-2016-4658 libxml2: Use after free via namespace node in XPointer ranges xpointer.c in libxml2 before 2.9.5 (as used in Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS before 3, and other products) does not forbid namespace nodes in XPointer ranges, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and memory corruption) via a crafted XML document.

References

medium severity

ALAS2-2020-1534

  • Vulnerable module: libxml2
  • Introduced through: libxml2@2.9.1-6.amzn2.3.2
  • Fixed in: 2.9.1-6.amzn2.5.1

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* libxml2@2.9.1-6.amzn2.3.2

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1534. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2020-7595: 1799786: CVE-2020-7595 libxml2: infinite loop in xmlStringLenDecodeEntities in some end-of-file situations xmlStringLenDecodeEntities in parser.c in libxml2 2.9.10 has an infinite loop in a certain end-of-file situation. CVE-2019-20388: 1799734: CVE-2019-20388 libxml2: memory leak in xmlSchemaPreRun in xmlschemas.c A memory leak was found in the xmlSchemaValidateStream function of libxml2. Applications that use this library may be vulnerable to memory not being freed leading to a denial of service. System availability is the highest threat from this vulnerability. CVE-2019-19956: xmlParseBalancedChunkMemoryRecover in parser.c in libxml2 before 2.9.10 has a memory leak related to newDoc->oldNs. 1788856: CVE-2019-19956 libxml2: memory leak in xmlParseBalancedChunkMemoryRecover in parser.c

Remediation

Upgrade libxml2 to version or higher.

References

medium severity

ALAS2-2019-1302

  • Vulnerable module: ncurses
  • Introduced through: ncurses@6.0-8.20170212.amzn2.1.2
  • Fixed in: 6.0-8.20170212.amzn2.1.3

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* ncurses@6.0-8.20170212.amzn2.1.2

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2017-11113: 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. 1473310: CVE-2017-11113 ncurses: Null pointer dereference vulnerability in _nc_parse_entry function CVE-2017-11112: 1473306: CVE-2017-11112 ncurses: Illegal address access in append_acs function 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. CVE-2017-10685: 1473312: CVE-2017-10685 ncurses: Stack-based buffer overflow caused by format string vulnerability in fmt_entry function 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. CVE-2017-10684: 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. 1473302: CVE-2017-10684 ncurses: Stack-based buffer overflow in fmt_entry function in dump_entry.c

References

medium severity

ALAS2-2019-1302

  • Vulnerable module: ncurses-base
  • Introduced through: ncurses-base@6.0-8.20170212.amzn2.1.2
  • Fixed in: 6.0-8.20170212.amzn2.1.3

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* ncurses-base@6.0-8.20170212.amzn2.1.2

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2017-11113: 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. 1473310: CVE-2017-11113 ncurses: Null pointer dereference vulnerability in _nc_parse_entry function CVE-2017-11112: 1473306: CVE-2017-11112 ncurses: Illegal address access in append_acs function 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. CVE-2017-10685: 1473312: CVE-2017-10685 ncurses: Stack-based buffer overflow caused by format string vulnerability in fmt_entry function 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. CVE-2017-10684: 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. 1473302: CVE-2017-10684 ncurses: Stack-based buffer overflow in fmt_entry function in dump_entry.c

References

medium severity

ALAS2-2019-1302

  • Vulnerable module: ncurses-libs
  • Introduced through: ncurses-libs@6.0-8.20170212.amzn2.1.2
  • Fixed in: 6.0-8.20170212.amzn2.1.3

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* ncurses-libs@6.0-8.20170212.amzn2.1.2

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2017-11113: 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. 1473310: CVE-2017-11113 ncurses: Null pointer dereference vulnerability in _nc_parse_entry function CVE-2017-11112: 1473306: CVE-2017-11112 ncurses: Illegal address access in append_acs function 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. CVE-2017-10685: 1473312: CVE-2017-10685 ncurses: Stack-based buffer overflow caused by format string vulnerability in fmt_entry function 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. CVE-2017-10684: 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. 1473302: CVE-2017-10684 ncurses: Stack-based buffer overflow in fmt_entry function in dump_entry.c

References

medium severity

ALAS2-2020-1559

  • Vulnerable module: nspr
  • Introduced through: nspr@4.19.0-1.amzn2
  • Fixed in: 4.25.0-2.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* nspr@4.19.0-1.amzn2

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1559. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2020-6829: 1826187: CVE-2020-6829 nss: Side channel attack on ECDSA signature generation A flaw was found in nss. Using the EM side-channel, it is possible to extract the position of zero and non-zero wNAF digits while nss-certutil tool performs scalar multiplication during the ECDSA signature generation, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key. The highest threat from this vulnerability is to data confidentiality. CVE-2020-12403: A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS. When using multi-part Chacha20, it could cause out-of-bounds reads. This issue was fixed by explicitly disabling multi-part ChaCha20 (which was not functioning correctly) and strictly enforcing tag length. The highest threat from this vulnerability is to confidentiality and system availability. 1868931: CVE-2020-12403 nss: CHACHA20-POLY1305 decryption with undersized tag leads to out-of-bounds read CVE-2020-12402: A flaw was found in NSS, where it is vulnerable to RSA key generation cache timing side-channel attacks. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could recover the private key. The highest threat to this flaw is to confidentiality. 1826231: CVE-2020-12402 nss: Side channel vulnerabilities during RSA key generation CVE-2020-12401: 1851294: CVE-2020-12401 nss: ECDSA timing attack mitigation bypass A flaw was found in nss. Using the EM side-channel, it is possible to extract the position of zero and non-zero wNAF digits while nss-certutil tool performs scalar multiplication during the ECDSA signature generation, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key. The highest threat from this vulnerability is to data confidentiality. CVE-2020-12400: 1853983: CVE-2020-12400 nss: P-384 and P-521 implementation uses a side-channel vulnerable modular inversion function A side channel flaw was found in nss, in the way P-384 and P-521 curves are used in the generation of EDSA signatures, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key. The highest threat from this vulnerability is to data confidentiality. CVE-2019-17023: A protocol downgrade flaw was found in Network Security Services (NSS). After a HelloRetryRequest has been sent, the client may negotiate a lower protocol than TLS 1.3, resulting in an invalid state transition in the TLS State Machine. If the client gets into this state, incoming Application Data records will be ignored. 1791225: CVE-2019-17023 nss: TLS 1.3 HelloRetryRequest downgrade request sets client into invalid state CVE-2019-17006: 1775916: CVE-2019-17006 nss: Check length of inputs for cryptographic primitives A vulnerability was discovered in nss where input text length was not checked when using certain cryptographic primitives. This could lead to a heap-buffer overflow resulting in a crash and data leak. The highest threat is to confidentiality and integrity of data as well as system availability. CVE-2019-11756: A use-after-free flaw was found in Mozilla Network Security Services (NSS) related to PK11 session handling. An attacker could use this flaw to execute arbitrary code with the permissions of the user running the application compiled with NSS. 1774835: CVE-2019-11756 nss: Use-after-free in sftk_FreeSession due to improper refcounting CVE-2019-11727: 1730988: CVE-2019-11727 nss: PKCS#1 v1.5 signatures can be used for TLS 1.3 A vulnerability exists where it possible to force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This vulnerability affects Firefox < 68. CVE-2019-11719: When importing a curve25519 private key in PKCS#8format with leading 0x00 bytes, it is possible to trigger an out-of-bounds read in the Network Security Services (NSS) library. This could lead to information disclosure. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8. 1728436: CVE-2019-11719 nss: Out-of-bounds read when importing curve25519 private key

Remediation

Upgrade nspr to version or higher.

References

medium severity

ALAS2-2019-1305

  • Vulnerable module: nss
  • Introduced through: nss@3.36.0-7.amzn2
  • Fixed in: 3.44.0-4.amzn2.0.2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* nss@3.36.0-7.amzn2

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2018-12404: 1657913: CVE-2018-12404 nss: Cache side-channel variant of the Bleichenbacher attack A cached side channel attack during handshakes using RSA encryption could allow for the decryption of encrypted content. This is a variant of the Adaptive Chosen Ciphertext attack (AKA Bleichenbacher attack) and affects all NSS versions prior to NSS 3.41. CVE-2018-0495: 1591163: CVE-2018-0495 ROHNP: Key Extraction Side Channel in Multiple Crypto Libraries Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host. 1591163: CVE-2018-0495 openssl: ROHNP - Key Extraction Side Channel in Multiple Crypto Libraries

References

medium severity

ALAS2-2020-1559

  • Vulnerable module: nss
  • Introduced through: nss@3.36.0-7.amzn2
  • Fixed in: 3.53.1-3.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* nss@3.36.0-7.amzn2

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1559. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2020-6829: 1826187: CVE-2020-6829 nss: Side channel attack on ECDSA signature generation A flaw was found in nss. Using the EM side-channel, it is possible to extract the position of zero and non-zero wNAF digits while nss-certutil tool performs scalar multiplication during the ECDSA signature generation, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key. The highest threat from this vulnerability is to data confidentiality. CVE-2020-12403: A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS. When using multi-part Chacha20, it could cause out-of-bounds reads. This issue was fixed by explicitly disabling multi-part ChaCha20 (which was not functioning correctly) and strictly enforcing tag length. The highest threat from this vulnerability is to confidentiality and system availability. 1868931: CVE-2020-12403 nss: CHACHA20-POLY1305 decryption with undersized tag leads to out-of-bounds read CVE-2020-12402: A flaw was found in NSS, where it is vulnerable to RSA key generation cache timing side-channel attacks. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could recover the private key. The highest threat to this flaw is to confidentiality. 1826231: CVE-2020-12402 nss: Side channel vulnerabilities during RSA key generation CVE-2020-12401: 1851294: CVE-2020-12401 nss: ECDSA timing attack mitigation bypass A flaw was found in nss. Using the EM side-channel, it is possible to extract the position of zero and non-zero wNAF digits while nss-certutil tool performs scalar multiplication during the ECDSA signature generation, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key. The highest threat from this vulnerability is to data confidentiality. CVE-2020-12400: 1853983: CVE-2020-12400 nss: P-384 and P-521 implementation uses a side-channel vulnerable modular inversion function A side channel flaw was found in nss, in the way P-384 and P-521 curves are used in the generation of EDSA signatures, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key. The highest threat from this vulnerability is to data confidentiality. CVE-2019-17023: A protocol downgrade flaw was found in Network Security Services (NSS). After a HelloRetryRequest has been sent, the client may negotiate a lower protocol than TLS 1.3, resulting in an invalid state transition in the TLS State Machine. If the client gets into this state, incoming Application Data records will be ignored. 1791225: CVE-2019-17023 nss: TLS 1.3 HelloRetryRequest downgrade request sets client into invalid state CVE-2019-17006: 1775916: CVE-2019-17006 nss: Check length of inputs for cryptographic primitives A vulnerability was discovered in nss where input text length was not checked when using certain cryptographic primitives. This could lead to a heap-buffer overflow resulting in a crash and data leak. The highest threat is to confidentiality and integrity of data as well as system availability. CVE-2019-11756: A use-after-free flaw was found in Mozilla Network Security Services (NSS) related to PK11 session handling. An attacker could use this flaw to execute arbitrary code with the permissions of the user running the application compiled with NSS. 1774835: CVE-2019-11756 nss: Use-after-free in sftk_FreeSession due to improper refcounting CVE-2019-11727: 1730988: CVE-2019-11727 nss: PKCS#1 v1.5 signatures can be used for TLS 1.3 A vulnerability exists where it possible to force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This vulnerability affects Firefox < 68. CVE-2019-11719: When importing a curve25519 private key in PKCS#8format with leading 0x00 bytes, it is possible to trigger an out-of-bounds read in the Network Security Services (NSS) library. This could lead to information disclosure. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8. 1728436: CVE-2019-11719 nss: Out-of-bounds read when importing curve25519 private key

Remediation

Upgrade nss to version or higher.

References

medium severity

ALAS2-2020-1379

  • Vulnerable module: nss-softokn
  • Introduced through: nss-softokn@3.36.0-5.amzn2.0.1
  • Fixed in: 3.44.0-8.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* nss-softokn@3.36.0-5.amzn2.0.1

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-11745: 99999: CVE-2019-11745 nss: Out-of-bounds write when passing an output buffer smaller than the block size to NSC_EncryptUpdate A heap-based buffer overflow was found in the NSC_EncryptUpdate() function in Mozilla nss. A remote attacker could trigger this flaw via SRTP encrypt or decrypt operations, to execute arbitrary code with the permissions of the user running the application (compiled with nss). While the attack complexity is high, the impact to confidentiality, integrity, and availability are high as well. CVE-2019-11729: 99999: CVE-2019-11729 nss: Empty or malformed p256-ECDH public keys may trigger a segmentation fault Empty or malformed p256-ECDH public keys may trigger a segmentation fault due values being improperly sanitized before being copied into memory and used. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.

References

medium severity

ALAS2-2020-1559

  • Vulnerable module: nss-softokn
  • Introduced through: nss-softokn@3.36.0-5.amzn2.0.1
  • Fixed in: 3.53.1-6.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* nss-softokn@3.36.0-5.amzn2.0.1

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1559. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2020-6829: 1826187: CVE-2020-6829 nss: Side channel attack on ECDSA signature generation A flaw was found in nss. Using the EM side-channel, it is possible to extract the position of zero and non-zero wNAF digits while nss-certutil tool performs scalar multiplication during the ECDSA signature generation, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key. The highest threat from this vulnerability is to data confidentiality. CVE-2020-12403: A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS. When using multi-part Chacha20, it could cause out-of-bounds reads. This issue was fixed by explicitly disabling multi-part ChaCha20 (which was not functioning correctly) and strictly enforcing tag length. The highest threat from this vulnerability is to confidentiality and system availability. 1868931: CVE-2020-12403 nss: CHACHA20-POLY1305 decryption with undersized tag leads to out-of-bounds read CVE-2020-12402: A flaw was found in NSS, where it is vulnerable to RSA key generation cache timing side-channel attacks. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could recover the private key. The highest threat to this flaw is to confidentiality. 1826231: CVE-2020-12402 nss: Side channel vulnerabilities during RSA key generation CVE-2020-12401: 1851294: CVE-2020-12401 nss: ECDSA timing attack mitigation bypass A flaw was found in nss. Using the EM side-channel, it is possible to extract the position of zero and non-zero wNAF digits while nss-certutil tool performs scalar multiplication during the ECDSA signature generation, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key. The highest threat from this vulnerability is to data confidentiality. CVE-2020-12400: 1853983: CVE-2020-12400 nss: P-384 and P-521 implementation uses a side-channel vulnerable modular inversion function A side channel flaw was found in nss, in the way P-384 and P-521 curves are used in the generation of EDSA signatures, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key. The highest threat from this vulnerability is to data confidentiality. CVE-2019-17023: A protocol downgrade flaw was found in Network Security Services (NSS). After a HelloRetryRequest has been sent, the client may negotiate a lower protocol than TLS 1.3, resulting in an invalid state transition in the TLS State Machine. If the client gets into this state, incoming Application Data records will be ignored. 1791225: CVE-2019-17023 nss: TLS 1.3 HelloRetryRequest downgrade request sets client into invalid state CVE-2019-17006: 1775916: CVE-2019-17006 nss: Check length of inputs for cryptographic primitives A vulnerability was discovered in nss where input text length was not checked when using certain cryptographic primitives. This could lead to a heap-buffer overflow resulting in a crash and data leak. The highest threat is to confidentiality and integrity of data as well as system availability. CVE-2019-11756: A use-after-free flaw was found in Mozilla Network Security Services (NSS) related to PK11 session handling. An attacker could use this flaw to execute arbitrary code with the permissions of the user running the application compiled with NSS. 1774835: CVE-2019-11756 nss: Use-after-free in sftk_FreeSession due to improper refcounting CVE-2019-11727: 1730988: CVE-2019-11727 nss: PKCS#1 v1.5 signatures can be used for TLS 1.3 A vulnerability exists where it possible to force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This vulnerability affects Firefox < 68. CVE-2019-11719: When importing a curve25519 private key in PKCS#8format with leading 0x00 bytes, it is possible to trigger an out-of-bounds read in the Network Security Services (NSS) library. This could lead to information disclosure. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8. 1728436: CVE-2019-11719 nss: Out-of-bounds read when importing curve25519 private key

Remediation

Upgrade nss-softokn to version or higher.

References

medium severity

ALAS2-2020-1379

  • Vulnerable module: nss-softokn-freebl
  • Introduced through: nss-softokn-freebl@3.36.0-5.amzn2.0.1
  • Fixed in: 3.44.0-8.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* nss-softokn-freebl@3.36.0-5.amzn2.0.1

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-11745: 99999: CVE-2019-11745 nss: Out-of-bounds write when passing an output buffer smaller than the block size to NSC_EncryptUpdate A heap-based buffer overflow was found in the NSC_EncryptUpdate() function in Mozilla nss. A remote attacker could trigger this flaw via SRTP encrypt or decrypt operations, to execute arbitrary code with the permissions of the user running the application (compiled with nss). While the attack complexity is high, the impact to confidentiality, integrity, and availability are high as well. CVE-2019-11729: 99999: CVE-2019-11729 nss: Empty or malformed p256-ECDH public keys may trigger a segmentation fault Empty or malformed p256-ECDH public keys may trigger a segmentation fault due values being improperly sanitized before being copied into memory and used. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.

References

medium severity

ALAS2-2020-1559

  • Vulnerable module: nss-softokn-freebl
  • Introduced through: nss-softokn-freebl@3.36.0-5.amzn2.0.1
  • Fixed in: 3.53.1-6.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* nss-softokn-freebl@3.36.0-5.amzn2.0.1

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1559. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2020-6829: 1826187: CVE-2020-6829 nss: Side channel attack on ECDSA signature generation A flaw was found in nss. Using the EM side-channel, it is possible to extract the position of zero and non-zero wNAF digits while nss-certutil tool performs scalar multiplication during the ECDSA signature generation, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key. The highest threat from this vulnerability is to data confidentiality. CVE-2020-12403: A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS. When using multi-part Chacha20, it could cause out-of-bounds reads. This issue was fixed by explicitly disabling multi-part ChaCha20 (which was not functioning correctly) and strictly enforcing tag length. The highest threat from this vulnerability is to confidentiality and system availability. 1868931: CVE-2020-12403 nss: CHACHA20-POLY1305 decryption with undersized tag leads to out-of-bounds read CVE-2020-12402: A flaw was found in NSS, where it is vulnerable to RSA key generation cache timing side-channel attacks. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could recover the private key. The highest threat to this flaw is to confidentiality. 1826231: CVE-2020-12402 nss: Side channel vulnerabilities during RSA key generation CVE-2020-12401: 1851294: CVE-2020-12401 nss: ECDSA timing attack mitigation bypass A flaw was found in nss. Using the EM side-channel, it is possible to extract the position of zero and non-zero wNAF digits while nss-certutil tool performs scalar multiplication during the ECDSA signature generation, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key. The highest threat from this vulnerability is to data confidentiality. CVE-2020-12400: 1853983: CVE-2020-12400 nss: P-384 and P-521 implementation uses a side-channel vulnerable modular inversion function A side channel flaw was found in nss, in the way P-384 and P-521 curves are used in the generation of EDSA signatures, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key. The highest threat from this vulnerability is to data confidentiality. CVE-2019-17023: A protocol downgrade flaw was found in Network Security Services (NSS). After a HelloRetryRequest has been sent, the client may negotiate a lower protocol than TLS 1.3, resulting in an invalid state transition in the TLS State Machine. If the client gets into this state, incoming Application Data records will be ignored. 1791225: CVE-2019-17023 nss: TLS 1.3 HelloRetryRequest downgrade request sets client into invalid state CVE-2019-17006: 1775916: CVE-2019-17006 nss: Check length of inputs for cryptographic primitives A vulnerability was discovered in nss where input text length was not checked when using certain cryptographic primitives. This could lead to a heap-buffer overflow resulting in a crash and data leak. The highest threat is to confidentiality and integrity of data as well as system availability. CVE-2019-11756: A use-after-free flaw was found in Mozilla Network Security Services (NSS) related to PK11 session handling. An attacker could use this flaw to execute arbitrary code with the permissions of the user running the application compiled with NSS. 1774835: CVE-2019-11756 nss: Use-after-free in sftk_FreeSession due to improper refcounting CVE-2019-11727: 1730988: CVE-2019-11727 nss: PKCS#1 v1.5 signatures can be used for TLS 1.3 A vulnerability exists where it possible to force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This vulnerability affects Firefox < 68. CVE-2019-11719: When importing a curve25519 private key in PKCS#8format with leading 0x00 bytes, it is possible to trigger an out-of-bounds read in the Network Security Services (NSS) library. This could lead to information disclosure. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8. 1728436: CVE-2019-11719 nss: Out-of-bounds read when importing curve25519 private key

Remediation

Upgrade nss-softokn-freebl to version or higher.

References

medium severity

ALAS2-2019-1305

  • Vulnerable module: nss-sysinit
  • Introduced through: nss-sysinit@3.36.0-7.amzn2
  • Fixed in: 3.44.0-4.amzn2.0.2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* nss-sysinit@3.36.0-7.amzn2

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2018-12404: 1657913: CVE-2018-12404 nss: Cache side-channel variant of the Bleichenbacher attack A cached side channel attack during handshakes using RSA encryption could allow for the decryption of encrypted content. This is a variant of the Adaptive Chosen Ciphertext attack (AKA Bleichenbacher attack) and affects all NSS versions prior to NSS 3.41. CVE-2018-0495: 1591163: CVE-2018-0495 ROHNP: Key Extraction Side Channel in Multiple Crypto Libraries Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host. 1591163: CVE-2018-0495 openssl: ROHNP - Key Extraction Side Channel in Multiple Crypto Libraries

References

medium severity

ALAS2-2020-1559

  • Vulnerable module: nss-sysinit
  • Introduced through: nss-sysinit@3.36.0-7.amzn2
  • Fixed in: 3.53.1-3.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* nss-sysinit@3.36.0-7.amzn2

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1559. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2020-6829: 1826187: CVE-2020-6829 nss: Side channel attack on ECDSA signature generation A flaw was found in nss. Using the EM side-channel, it is possible to extract the position of zero and non-zero wNAF digits while nss-certutil tool performs scalar multiplication during the ECDSA signature generation, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key. The highest threat from this vulnerability is to data confidentiality. CVE-2020-12403: A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS. When using multi-part Chacha20, it could cause out-of-bounds reads. This issue was fixed by explicitly disabling multi-part ChaCha20 (which was not functioning correctly) and strictly enforcing tag length. The highest threat from this vulnerability is to confidentiality and system availability. 1868931: CVE-2020-12403 nss: CHACHA20-POLY1305 decryption with undersized tag leads to out-of-bounds read CVE-2020-12402: A flaw was found in NSS, where it is vulnerable to RSA key generation cache timing side-channel attacks. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could recover the private key. The highest threat to this flaw is to confidentiality. 1826231: CVE-2020-12402 nss: Side channel vulnerabilities during RSA key generation CVE-2020-12401: 1851294: CVE-2020-12401 nss: ECDSA timing attack mitigation bypass A flaw was found in nss. Using the EM side-channel, it is possible to extract the position of zero and non-zero wNAF digits while nss-certutil tool performs scalar multiplication during the ECDSA signature generation, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key. The highest threat from this vulnerability is to data confidentiality. CVE-2020-12400: 1853983: CVE-2020-12400 nss: P-384 and P-521 implementation uses a side-channel vulnerable modular inversion function A side channel flaw was found in nss, in the way P-384 and P-521 curves are used in the generation of EDSA signatures, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key. The highest threat from this vulnerability is to data confidentiality. CVE-2019-17023: A protocol downgrade flaw was found in Network Security Services (NSS). After a HelloRetryRequest has been sent, the client may negotiate a lower protocol than TLS 1.3, resulting in an invalid state transition in the TLS State Machine. If the client gets into this state, incoming Application Data records will be ignored. 1791225: CVE-2019-17023 nss: TLS 1.3 HelloRetryRequest downgrade request sets client into invalid state CVE-2019-17006: 1775916: CVE-2019-17006 nss: Check length of inputs for cryptographic primitives A vulnerability was discovered in nss where input text length was not checked when using certain cryptographic primitives. This could lead to a heap-buffer overflow resulting in a crash and data leak. The highest threat is to confidentiality and integrity of data as well as system availability. CVE-2019-11756: A use-after-free flaw was found in Mozilla Network Security Services (NSS) related to PK11 session handling. An attacker could use this flaw to execute arbitrary code with the permissions of the user running the application compiled with NSS. 1774835: CVE-2019-11756 nss: Use-after-free in sftk_FreeSession due to improper refcounting CVE-2019-11727: 1730988: CVE-2019-11727 nss: PKCS#1 v1.5 signatures can be used for TLS 1.3 A vulnerability exists where it possible to force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This vulnerability affects Firefox < 68. CVE-2019-11719: When importing a curve25519 private key in PKCS#8format with leading 0x00 bytes, it is possible to trigger an out-of-bounds read in the Network Security Services (NSS) library. This could lead to information disclosure. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8. 1728436: CVE-2019-11719 nss: Out-of-bounds read when importing curve25519 private key

Remediation

Upgrade nss-sysinit to version or higher.

References

medium severity

ALAS2-2019-1305

  • Vulnerable module: nss-tools
  • Introduced through: nss-tools@3.36.0-7.amzn2
  • Fixed in: 3.44.0-4.amzn2.0.2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* nss-tools@3.36.0-7.amzn2

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2018-12404: 1657913: CVE-2018-12404 nss: Cache side-channel variant of the Bleichenbacher attack A cached side channel attack during handshakes using RSA encryption could allow for the decryption of encrypted content. This is a variant of the Adaptive Chosen Ciphertext attack (AKA Bleichenbacher attack) and affects all NSS versions prior to NSS 3.41. CVE-2018-0495: 1591163: CVE-2018-0495 ROHNP: Key Extraction Side Channel in Multiple Crypto Libraries Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host. 1591163: CVE-2018-0495 openssl: ROHNP - Key Extraction Side Channel in Multiple Crypto Libraries

References

medium severity

ALAS2-2020-1559

  • Vulnerable module: nss-tools
  • Introduced through: nss-tools@3.36.0-7.amzn2
  • Fixed in: 3.53.1-3.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* nss-tools@3.36.0-7.amzn2

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1559. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2020-6829: 1826187: CVE-2020-6829 nss: Side channel attack on ECDSA signature generation A flaw was found in nss. Using the EM side-channel, it is possible to extract the position of zero and non-zero wNAF digits while nss-certutil tool performs scalar multiplication during the ECDSA signature generation, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key. The highest threat from this vulnerability is to data confidentiality. CVE-2020-12403: A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS. When using multi-part Chacha20, it could cause out-of-bounds reads. This issue was fixed by explicitly disabling multi-part ChaCha20 (which was not functioning correctly) and strictly enforcing tag length. The highest threat from this vulnerability is to confidentiality and system availability. 1868931: CVE-2020-12403 nss: CHACHA20-POLY1305 decryption with undersized tag leads to out-of-bounds read CVE-2020-12402: A flaw was found in NSS, where it is vulnerable to RSA key generation cache timing side-channel attacks. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could recover the private key. The highest threat to this flaw is to confidentiality. 1826231: CVE-2020-12402 nss: Side channel vulnerabilities during RSA key generation CVE-2020-12401: 1851294: CVE-2020-12401 nss: ECDSA timing attack mitigation bypass A flaw was found in nss. Using the EM side-channel, it is possible to extract the position of zero and non-zero wNAF digits while nss-certutil tool performs scalar multiplication during the ECDSA signature generation, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key. The highest threat from this vulnerability is to data confidentiality. CVE-2020-12400: 1853983: CVE-2020-12400 nss: P-384 and P-521 implementation uses a side-channel vulnerable modular inversion function A side channel flaw was found in nss, in the way P-384 and P-521 curves are used in the generation of EDSA signatures, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key. The highest threat from this vulnerability is to data confidentiality. CVE-2019-17023: A protocol downgrade flaw was found in Network Security Services (NSS). After a HelloRetryRequest has been sent, the client may negotiate a lower protocol than TLS 1.3, resulting in an invalid state transition in the TLS State Machine. If the client gets into this state, incoming Application Data records will be ignored. 1791225: CVE-2019-17023 nss: TLS 1.3 HelloRetryRequest downgrade request sets client into invalid state CVE-2019-17006: 1775916: CVE-2019-17006 nss: Check length of inputs for cryptographic primitives A vulnerability was discovered in nss where input text length was not checked when using certain cryptographic primitives. This could lead to a heap-buffer overflow resulting in a crash and data leak. The highest threat is to confidentiality and integrity of data as well as system availability. CVE-2019-11756: A use-after-free flaw was found in Mozilla Network Security Services (NSS) related to PK11 session handling. An attacker could use this flaw to execute arbitrary code with the permissions of the user running the application compiled with NSS. 1774835: CVE-2019-11756 nss: Use-after-free in sftk_FreeSession due to improper refcounting CVE-2019-11727: 1730988: CVE-2019-11727 nss: PKCS#1 v1.5 signatures can be used for TLS 1.3 A vulnerability exists where it possible to force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This vulnerability affects Firefox < 68. CVE-2019-11719: When importing a curve25519 private key in PKCS#8format with leading 0x00 bytes, it is possible to trigger an out-of-bounds read in the Network Security Services (NSS) library. This could lead to information disclosure. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8. 1728436: CVE-2019-11719 nss: Out-of-bounds read when importing curve25519 private key

Remediation

Upgrade nss-tools to version or higher.

References

medium severity

ALAS2-2020-1559

  • Vulnerable module: nss-util
  • Introduced through: nss-util@3.36.0-1.amzn2
  • Fixed in: 3.53.1-1.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* nss-util@3.36.0-1.amzn2

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1559. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2020-6829: 1826187: CVE-2020-6829 nss: Side channel attack on ECDSA signature generation A flaw was found in nss. Using the EM side-channel, it is possible to extract the position of zero and non-zero wNAF digits while nss-certutil tool performs scalar multiplication during the ECDSA signature generation, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key. The highest threat from this vulnerability is to data confidentiality. CVE-2020-12403: A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS. When using multi-part Chacha20, it could cause out-of-bounds reads. This issue was fixed by explicitly disabling multi-part ChaCha20 (which was not functioning correctly) and strictly enforcing tag length. The highest threat from this vulnerability is to confidentiality and system availability. 1868931: CVE-2020-12403 nss: CHACHA20-POLY1305 decryption with undersized tag leads to out-of-bounds read CVE-2020-12402: A flaw was found in NSS, where it is vulnerable to RSA key generation cache timing side-channel attacks. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could recover the private key. The highest threat to this flaw is to confidentiality. 1826231: CVE-2020-12402 nss: Side channel vulnerabilities during RSA key generation CVE-2020-12401: 1851294: CVE-2020-12401 nss: ECDSA timing attack mitigation bypass A flaw was found in nss. Using the EM side-channel, it is possible to extract the position of zero and non-zero wNAF digits while nss-certutil tool performs scalar multiplication during the ECDSA signature generation, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key. The highest threat from this vulnerability is to data confidentiality. CVE-2020-12400: 1853983: CVE-2020-12400 nss: P-384 and P-521 implementation uses a side-channel vulnerable modular inversion function A side channel flaw was found in nss, in the way P-384 and P-521 curves are used in the generation of EDSA signatures, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key. The highest threat from this vulnerability is to data confidentiality. CVE-2019-17023: A protocol downgrade flaw was found in Network Security Services (NSS). After a HelloRetryRequest has been sent, the client may negotiate a lower protocol than TLS 1.3, resulting in an invalid state transition in the TLS State Machine. If the client gets into this state, incoming Application Data records will be ignored. 1791225: CVE-2019-17023 nss: TLS 1.3 HelloRetryRequest downgrade request sets client into invalid state CVE-2019-17006: 1775916: CVE-2019-17006 nss: Check length of inputs for cryptographic primitives A vulnerability was discovered in nss where input text length was not checked when using certain cryptographic primitives. This could lead to a heap-buffer overflow resulting in a crash and data leak. The highest threat is to confidentiality and integrity of data as well as system availability. CVE-2019-11756: A use-after-free flaw was found in Mozilla Network Security Services (NSS) related to PK11 session handling. An attacker could use this flaw to execute arbitrary code with the permissions of the user running the application compiled with NSS. 1774835: CVE-2019-11756 nss: Use-after-free in sftk_FreeSession due to improper refcounting CVE-2019-11727: 1730988: CVE-2019-11727 nss: PKCS#1 v1.5 signatures can be used for TLS 1.3 A vulnerability exists where it possible to force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This vulnerability affects Firefox < 68. CVE-2019-11719: When importing a curve25519 private key in PKCS#8format with leading 0x00 bytes, it is possible to trigger an out-of-bounds read in the Network Security Services (NSS) library. This could lead to information disclosure. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8. 1728436: CVE-2019-11719 nss: Out-of-bounds read when importing curve25519 private key

Remediation

Upgrade nss-util to version or higher.

References

medium severity

ALAS2-2020-1539

  • Vulnerable module: openldap
  • Introduced through: openldap@2.4.44-15.amzn2
  • Fixed in: 2.4.44-22.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* openldap@2.4.44-15.amzn2

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1539. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2020-12243: In filter.c in slapd in OpenLDAP before 2.4.50, LDAP search filters with nested boolean expressions can result in denial of service (daemon crash). 1833535: CVE-2020-12243 openldap: denial of service via nested boolean expressions in LDAP search filters

Remediation

Upgrade openldap to version or higher.

References

medium severity

ALAS2-2019-1362

  • Vulnerable module: openssl-libs
  • Introduced through: openssl-libs@1:1.0.2k-16.amzn2.1.1
  • Fixed in: 1:1.0.2k-19.amzn2.0.1

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* openssl-libs@1:1.0.2k-16.amzn2.1.1

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-1559: 1683804: CVE-2019-1559 openssl: 0-byte record padding oracle If an application encounters a fatal protocol error and then calls SSL_shutdown() twice (once to send a close_notify, and once to receive one) then OpenSSL can respond differently to the calling application if a 0 byte record is received with invalid padding compared to if a 0 byte record is received with an invalid MAC. If the application then behaves differently based on that in a way that is detectable to the remote peer, then this amounts to a padding oracle that could be used to decrypt data. In order for this to be exploitable "non-stitched" ciphersuites must be in use. Stitched ciphersuites are optimised implementations of certain commonly used ciphersuites. Also the application must call SSL_shutdown() twice even if a protocol error has occurred (applications should not do this but some do anyway). Fixed in OpenSSL 1.0.2r (Affected 1.0.2-1.0.2q). CVE-2018-0734: 1644364: CVE-2018-0734 openssl: timing side channel attack in the DSA signature algorithm The OpenSSL DSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use variations in the signing algorithm to recover the private key. Fixed in OpenSSL 1.1.1a (Affected 1.1.1). Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i). Fixed in OpenSSL 1.0.2q (Affected 1.0.2-1.0.2p).

References

medium severity

ALAS2-2019-1291

  • Vulnerable module: python
  • Introduced through: python@2.7.16-2.amzn2.0.1
  • Fixed in: 2.7.16-3.amzn2.0.1

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* python@2.7.16-2.amzn2.0.1

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-9948: 1695570: CVE-2019-9948 python: Undocumented local_file protocol allows remote attackers to bypass protection mechanisms urllib in Python 2.x through 2.7.16 supports the local_file: scheme, which makes it easier for remote attackers to bypass protection mechanisms that blacklist file: URIs, as demonstrated by triggering a urllib.urlopen('local_file:///etc/passwd') call.

References

medium severity

ALAS2-2019-1368

  • Vulnerable module: python
  • Introduced through: python@2.7.16-2.amzn2.0.1
  • Fixed in: 2.7.16-4.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* python@2.7.16-2.amzn2.0.1

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-16056: 99999: CVE-2019-16056 python: email.utils.parseaddr wrongly parses email addresses An issue was discovered in Python through 2.7.16, 3.x through 3.5.7, 3.6.x through 3.6.9, and 3.7.x through 3.7.4. The email module wrongly parses email addresses that contain multiple @ characters. An application that uses the email module and implements some kind of checks on the From/To headers of a message could be tricked into accepting an email address that should be denied. An attack may be the same as in CVE-2019-11340; however, this CVE applies to Python more generally.

References

medium severity

ALAS2-2020-1432

  • Vulnerable module: python
  • Introduced through: python@2.7.16-2.amzn2.0.1
  • Fixed in: 2.7.18-1.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* python@2.7.16-2.amzn2.0.1

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1432. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2020-8492: 1809065: CVE-2020-8492 python: wrong backtracking in urllib.request.AbstractBasicAuthHandler allows for a ReDoS Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1 allows an HTTP server to conduct Regular Expression Denial of Service (ReDoS) attacks against a client because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking. CVE-2018-20852: http.cookiejar.DefaultPolicy.domain_return_ok in Lib/http/cookiejar.py in Python before 3.7.3 does not correctly validate the domain: it can be tricked into sending existing cookies to the wrong server. An attacker may abuse this flaw by using a server with a hostname that has another valid hostname as a suffix (e.g., pythonicexample.com to steal cookies for example.com). When a program uses http.cookiejar.DefaultPolicy and tries to do an HTTP connection to an attacker-controlled server, existing cookies can be leaked to the attacker. This affects 2.x through 2.7.16, 3.x before 3.4.10, 3.5.x before 3.5.7, 3.6.x before 3.6.9, and 3.7.x before 3.7.3. 1740347: CVE-2018-20852 python: Cookie domain check returns incorrect results

Remediation

Upgrade python to version or higher.

References

medium severity

ALAS2-2020-1471

  • Vulnerable module: python
  • Introduced through: python@2.7.16-2.amzn2.0.1
  • Fixed in: 2.7.18-1.amzn2.0.1

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* python@2.7.16-2.amzn2.0.1

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1471. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2020-8492: 1809065: CVE-2020-8492 python: wrong backtracking in urllib.request.AbstractBasicAuthHandler allows for a ReDoS Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1 allows an HTTP server to conduct Regular Expression Denial of Service (ReDoS) attacks against a client because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking.

Remediation

Upgrade python to version or higher.

References

medium severity

ALAS2-2020-1483

  • Vulnerable module: python
  • Introduced through: python@2.7.16-2.amzn2.0.1
  • Fixed in: 2.7.18-1.amzn2.0.2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* python@2.7.16-2.amzn2.0.1

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1483. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-20907: In Lib/tarfile.py in Python through 3.8.3, an attacker is able to craft a TAR archive leading to an infinite loop when opened by tarfile.open, because _proc_pax lacks header validation. 1856481: CVE-2019-20907 python: infinite loop in the tarfile module via crafted TAR archive

Remediation

Upgrade python to version or higher.

References

medium severity

ALAS2-2019-1291

  • Vulnerable module: python-libs
  • Introduced through: python-libs@2.7.16-2.amzn2.0.1
  • Fixed in: 2.7.16-3.amzn2.0.1

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* python-libs@2.7.16-2.amzn2.0.1

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-9948: 1695570: CVE-2019-9948 python: Undocumented local_file protocol allows remote attackers to bypass protection mechanisms urllib in Python 2.x through 2.7.16 supports the local_file: scheme, which makes it easier for remote attackers to bypass protection mechanisms that blacklist file: URIs, as demonstrated by triggering a urllib.urlopen('local_file:///etc/passwd') call.

References

medium severity

ALAS2-2019-1368

  • Vulnerable module: python-libs
  • Introduced through: python-libs@2.7.16-2.amzn2.0.1
  • Fixed in: 2.7.16-4.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* python-libs@2.7.16-2.amzn2.0.1

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-16056: 99999: CVE-2019-16056 python: email.utils.parseaddr wrongly parses email addresses An issue was discovered in Python through 2.7.16, 3.x through 3.5.7, 3.6.x through 3.6.9, and 3.7.x through 3.7.4. The email module wrongly parses email addresses that contain multiple @ characters. An application that uses the email module and implements some kind of checks on the From/To headers of a message could be tricked into accepting an email address that should be denied. An attack may be the same as in CVE-2019-11340; however, this CVE applies to Python more generally.

References

medium severity

ALAS2-2020-1432

  • Vulnerable module: python-libs
  • Introduced through: python-libs@2.7.16-2.amzn2.0.1
  • Fixed in: 2.7.18-1.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* python-libs@2.7.16-2.amzn2.0.1

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1432. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2020-8492: 1809065: CVE-2020-8492 python: wrong backtracking in urllib.request.AbstractBasicAuthHandler allows for a ReDoS Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1 allows an HTTP server to conduct Regular Expression Denial of Service (ReDoS) attacks against a client because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking. CVE-2018-20852: http.cookiejar.DefaultPolicy.domain_return_ok in Lib/http/cookiejar.py in Python before 3.7.3 does not correctly validate the domain: it can be tricked into sending existing cookies to the wrong server. An attacker may abuse this flaw by using a server with a hostname that has another valid hostname as a suffix (e.g., pythonicexample.com to steal cookies for example.com). When a program uses http.cookiejar.DefaultPolicy and tries to do an HTTP connection to an attacker-controlled server, existing cookies can be leaked to the attacker. This affects 2.x through 2.7.16, 3.x before 3.4.10, 3.5.x before 3.5.7, 3.6.x before 3.6.9, and 3.7.x before 3.7.3. 1740347: CVE-2018-20852 python: Cookie domain check returns incorrect results

Remediation

Upgrade python-libs to version or higher.

References

medium severity

ALAS2-2020-1471

  • Vulnerable module: python-libs
  • Introduced through: python-libs@2.7.16-2.amzn2.0.1
  • Fixed in: 2.7.18-1.amzn2.0.1

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* python-libs@2.7.16-2.amzn2.0.1

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1471. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2020-8492: 1809065: CVE-2020-8492 python: wrong backtracking in urllib.request.AbstractBasicAuthHandler allows for a ReDoS Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1 allows an HTTP server to conduct Regular Expression Denial of Service (ReDoS) attacks against a client because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking.

Remediation

Upgrade python-libs to version or higher.

References

medium severity

ALAS2-2020-1483

  • Vulnerable module: python-libs
  • Introduced through: python-libs@2.7.16-2.amzn2.0.1
  • Fixed in: 2.7.18-1.amzn2.0.2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* python-libs@2.7.16-2.amzn2.0.1

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1483. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-20907: In Lib/tarfile.py in Python through 3.8.3, an attacker is able to craft a TAR archive leading to an infinite loop when opened by tarfile.open, because _proc_pax lacks header validation. 1856481: CVE-2019-20907 python: infinite loop in the tarfile module via crafted TAR archive

Remediation

Upgrade python-libs to version or higher.

References

low severity

ALAS2-2019-1337

  • Vulnerable module: elfutils-libelf
  • Introduced through: elfutils-libelf@0.170-4.amzn2
  • Fixed in: 0.176-2.amzn2

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* elfutils-libelf@0.170-4.amzn2

Overview

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-7665: 99999: CVE-2019-7665 elfutils: heap-based buffer over-read in function elf32_xlatetom in elf32_xlatetom.c In elfutils 0.175, a heap-based buffer over-read was discovered in the function elf32_xlatetom in elf32_xlatetom.c in libelf. A crafted ELF input can cause a segmentation fault leading to denial of service (program crash) because ebl_core_note does not reject malformed core file notes. CVE-2019-7664: 99999: CVE-2019-7664 elfutils: out of bound write in elf_cvt_note in libelf/note_xlate.h In elfutils 0.175, a negative-sized memcpy is attempted in elf_cvt_note in libelf/note_xlate.h because of an incorrect overflow check. Crafted elf input causes a segmentation fault, leading to denial of service (program crash). CVE-2019-7150: 99999: CVE-2019-7150 elfutils: segmentation fault in elf64_xlatetom in libelf/elf32_xlatetom.c An issue was discovered in elfutils 0.175. A segmentation fault can occur in the function elf64_xlatetom in libelf/elf32_xlatetom.c, due to dwfl_segment_report_module not checking whether the dyn data read from a core file is truncated. A crafted input can cause a program crash, leading to denial-of-service, as demonstrated by eu-stack. CVE-2019-7149: 99999: CVE-2019-7149 elfutils: heap-based buffer over-read in read_srclines in dwarf_getsrclines.c in libdw A heap-based buffer over-read was discovered in the function read_srclines in dwarf_getsrclines.c in libdw in elfutils 0.175. A crafted input can cause segmentation faults, leading to denial-of-service, as demonstrated by eu-nm. CVE-2018-18521: 99999: CVE-2018-18521 elfutils: Divide-by-zero in arlib_add_symbols function in arlib.c Divide-by-zero vulnerabilities in the function arlib_add_symbols() in arlib.c in elfutils 0.174 allow remote attackers to cause a denial of service (application crash) with a crafted ELF file, as demonstrated by eu-ranlib, because a zero sh_entsize is mishandled. CVE-2018-18520: An Invalid Memory Address Dereference exists in the function elf_end in libelf in elfutils through v0.174. Although eu-size is intended to support ar files inside ar files, handle_ar in size.c closes the outer ar file before handling all inner entries. The vulnerability allows attackers to cause a denial of service (application crash) with a crafted ELF file. 99999: CVE-2018-18520 elfutils: eu-size cannot handle recursive ar files CVE-2018-18310: 99999: CVE-2018-18310 elfutils: invalid memory address dereference was discovered in dwfl_segment_report_module.c in libdwfl An invalid memory address dereference was discovered in dwfl_segment_report_module.c in libdwfl in elfutils through v0.174. The vulnerability allows attackers to cause a denial of service (application crash) with a crafted ELF file, as demonstrated by consider_notes. CVE-2018-16403: libdw in elfutils 0.173 checks the end of the attributes list incorrectly in dwarf_getabbrev in dwarf_getabbrev.c and dwarf_hasattr in dwarf_hasattr.c, leading to a heap-based buffer over-read and an application crash. 99999: CVE-2018-16403 elfutils: Heap-based buffer over-read in libdw/dwarf_getabbrev.c and libwd/dwarf_hasattr.c causes crash CVE-2018-16402: libelf/elf_end.c in elfutils 0.173 allows remote attackers to cause a denial of service (double free and application crash) or possibly have unspecified other impact because it tries to decompress twice. 99999: CVE-2018-16402 elfutils: Double-free due to double decompression of sections in crafted ELF causes crash CVE-2018-16062: 99999: CVE-2018-16062 elfutils: Heap-based buffer over-read in libdw/dwarf_getaranges.c:dwarf_getaranges() via crafted file An out-of-bounds read was discovered in elfutils in the way it reads DWARF address ranges information. Function dwarf_getaranges() in dwarf_getaranges.c does not properly check whether it reads beyond the limits of the ELF section. An attacker could use this flaw to cause a denial of service via a crafted file.

References

low severity

ALAS2-2020-1452

  • Vulnerable module: file-libs
  • Introduced through: file-libs@5.11-33.amzn2.0.2
  • Fixed in: 5.11-36.amzn2.0.1

Detailed paths

  • Introduced through: amazonlinux:2.0.20190823.1@* file-libs@5.11-33.amzn2.0.2

Overview

Affected versions of this package are vulnerable to ALAS2-2020-1452. Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2018-10360: The do_core_note function in readelf.c in libmagic.a in file 5.33 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted ELF file. 1590000: CVE-2018-10360 file: out-of-bounds read via a crafted ELF file

Remediation

Upgrade file-libs to version or higher.

References