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Red Hat Security Advisory 2023-0173-01

Red Hat Security Advisory 2023-0173-01 - The libxml2 library is a development toolbox providing the implementation of various XML standards. Issues addressed include an integer overflow vulnerability.

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====================================================================
Red Hat Security Advisory

Synopsis: Moderate: libxml2 security update
Advisory ID: RHSA-2023:0173-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:0173
Issue date: 2023-01-16
CVE Names: CVE-2022-40303 CVE-2022-40304
====================================================================

  1. Summary:

An update for libxml2 is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.

  1. Relevant releases/architectures:

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64

  1. Description:

The libxml2 library is a development toolbox providing the implementation
of various XML standards.

Security Fix(es):

  • libxml2: integer overflows with XML_PARSE_HUGE (CVE-2022-40303)

  • libxml2: dict corruption caused by entity reference cycles
    (CVE-2022-40304)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

  1. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

The desktop must be restarted (log out, then log back in) for this update
to take effect.

  1. Bugs fixed (https://bugzilla.redhat.com/):

2136266 - CVE-2022-40303 libxml2: integer overflows with XML_PARSE_HUGE
2136288 - CVE-2022-40304 libxml2: dict corruption caused by entity reference cycles

  1. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

aarch64:
libxml2-debuginfo-2.9.7-15.el8_7.1.aarch64.rpm
libxml2-debugsource-2.9.7-15.el8_7.1.aarch64.rpm
libxml2-devel-2.9.7-15.el8_7.1.aarch64.rpm
python3-libxml2-debuginfo-2.9.7-15.el8_7.1.aarch64.rpm

ppc64le:
libxml2-debuginfo-2.9.7-15.el8_7.1.ppc64le.rpm
libxml2-debugsource-2.9.7-15.el8_7.1.ppc64le.rpm
libxml2-devel-2.9.7-15.el8_7.1.ppc64le.rpm
python3-libxml2-debuginfo-2.9.7-15.el8_7.1.ppc64le.rpm

s390x:
libxml2-debuginfo-2.9.7-15.el8_7.1.s390x.rpm
libxml2-debugsource-2.9.7-15.el8_7.1.s390x.rpm
libxml2-devel-2.9.7-15.el8_7.1.s390x.rpm
python3-libxml2-debuginfo-2.9.7-15.el8_7.1.s390x.rpm

x86_64:
libxml2-debuginfo-2.9.7-15.el8_7.1.i686.rpm
libxml2-debuginfo-2.9.7-15.el8_7.1.x86_64.rpm
libxml2-debugsource-2.9.7-15.el8_7.1.i686.rpm
libxml2-debugsource-2.9.7-15.el8_7.1.x86_64.rpm
libxml2-devel-2.9.7-15.el8_7.1.i686.rpm
libxml2-devel-2.9.7-15.el8_7.1.x86_64.rpm
python3-libxml2-debuginfo-2.9.7-15.el8_7.1.i686.rpm
python3-libxml2-debuginfo-2.9.7-15.el8_7.1.x86_64.rpm

Red Hat Enterprise Linux BaseOS (v. 8):

Source:
libxml2-2.9.7-15.el8_7.1.src.rpm

aarch64:
libxml2-2.9.7-15.el8_7.1.aarch64.rpm
libxml2-debuginfo-2.9.7-15.el8_7.1.aarch64.rpm
libxml2-debugsource-2.9.7-15.el8_7.1.aarch64.rpm
python3-libxml2-2.9.7-15.el8_7.1.aarch64.rpm
python3-libxml2-debuginfo-2.9.7-15.el8_7.1.aarch64.rpm

ppc64le:
libxml2-2.9.7-15.el8_7.1.ppc64le.rpm
libxml2-debuginfo-2.9.7-15.el8_7.1.ppc64le.rpm
libxml2-debugsource-2.9.7-15.el8_7.1.ppc64le.rpm
python3-libxml2-2.9.7-15.el8_7.1.ppc64le.rpm
python3-libxml2-debuginfo-2.9.7-15.el8_7.1.ppc64le.rpm

s390x:
libxml2-2.9.7-15.el8_7.1.s390x.rpm
libxml2-debuginfo-2.9.7-15.el8_7.1.s390x.rpm
libxml2-debugsource-2.9.7-15.el8_7.1.s390x.rpm
python3-libxml2-2.9.7-15.el8_7.1.s390x.rpm
python3-libxml2-debuginfo-2.9.7-15.el8_7.1.s390x.rpm

x86_64:
libxml2-2.9.7-15.el8_7.1.i686.rpm
libxml2-2.9.7-15.el8_7.1.x86_64.rpm
libxml2-debuginfo-2.9.7-15.el8_7.1.i686.rpm
libxml2-debuginfo-2.9.7-15.el8_7.1.x86_64.rpm
libxml2-debugsource-2.9.7-15.el8_7.1.i686.rpm
libxml2-debugsource-2.9.7-15.el8_7.1.x86_64.rpm
python3-libxml2-2.9.7-15.el8_7.1.x86_64.rpm
python3-libxml2-debuginfo-2.9.7-15.el8_7.1.i686.rpm
python3-libxml2-debuginfo-2.9.7-15.el8_7.1.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

  1. References:

https://access.redhat.com/security/cve/CVE-2022-40303
https://access.redhat.com/security/cve/CVE-2022-40304
https://access.redhat.com/security/updates/classification/#moderate

  1. Contact:

The Red Hat security contact is [email protected]. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2023 Red Hat, Inc.
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Ubuntu Security Notice 5760-1 - It was discovered that libxml2 incorrectly handled certain XML files. An attacker could possibly use this issue to cause a crash. It was discovered that libxml2 incorrectly handled certain XML files. An attacker could possibly use this issue to expose sensitive information or cause a crash. It was discovered that libxml2 incorrectly handled certain XML files. An attacker could possibly use this issue to execute arbitrary code.

CVE-2022-40303: [CVE-2022-40303] Fix integer overflows with XML_PARSE_HUGE (c8469863) · Commits · GNOME / libxml2 · GitLab

An issue was discovered in libxml2 before 2.10.3. When parsing a multi-gigabyte XML document with the XML_PARSE_HUGE parser option enabled, several integer counters can overflow. This results in an attempt to access an array at a negative 2GB offset, typically leading to a segmentation fault.

libxml2 xmlParseNameComplex Integer Overflow

libxml2 suffers from an integer overflow vulnerability in xmlParseNameComplex.

Debian Security Advisory 5271-1

Debian Linux Security Advisory 5271-1 - Several vulnerabilities were discovered in libxml2, a library providing support to read, modify and write XML and HTML files.

Debian Security Advisory 5271-1

Debian Linux Security Advisory 5271-1 - Several vulnerabilities were discovered in libxml2, a library providing support to read, modify and write XML and HTML files.

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