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RedHat: RHSA-2021:3810-01 Moderate: libxml2 Use After Free

red hat
Calendar Grey October 12, 2021
Scroller Redhat
Keep your Red Hat Enterprise Linux protected by implementing the libxml2 upgrade that resolves a significant security vulnerability.
An update for libxml2 is now available for Red Hat Enterprise Linux 7

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.

Summary

The libxml2 library is a development toolbox providing the implementation of various XML standards.
Security Fix(es):
* libxml2: Use after free via namespace node in XPointer ranges (CVE-2016-4658)
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.

Topics%20covered

Topics Covered

security advisory moderate security update Red Hat Enterprise Linux libxml2 use after free XPointer

References

https://access.redhat.com/security/cve/CVE-2016-4658 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: libxml2-2.9.1-6.el7_9.6.src.rpm
x86_64: libxml2-2.9.1-6.el7_9.6.i686.rpm libxml2-2.9.1-6.el7_9.6.x86_64.rpm libxml2-debuginfo-2.9.1-6.el7_9.6.i686.rpm libxml2-debuginfo-2.9.1-6.el7_9.6.x86_64.rpm libxml2-python-2.9.1-6.el7_9.6.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: libxml2-debuginfo-2.9.1-6.el7_9.6.i686.rpm libxml2-debuginfo-2.9.1-6.el7_9.6.x86_64.rpm libxml2-devel-2.9.1-6.el7_9.6.i686.rpm libxml2-devel-2.9.1-6.el7_9.6.x86_64.rpm libxml2-static-2.9.1-6.el7_9.6.i686.rpm libxml2-static-2.9.1-6.el7_9.6.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: libxml2-2.9.1-6.el7_9.6.src.rpm
x86_64: libxml2-2.9.1-6.el7_9.6.i686.rpm libxml2-2.9.1-6.el7_9.6.x86_64.rpm libxml2-debuginfo-2.9.1-6.el7_9.6.i686.rpm libxml2-debuginfo-2.9.1-6.el7_9.6.x86_64.rpm libxml2-python-2.9.1-6.el7_9.6.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64: libxml2-debuginfo-2.9.1-6.el7_9.6.i686.rpm libxml2-debuginfo-2.9.1-6.el7_9.6.x86_64.rpm libxml2-devel-2.9.1-6.el7_9.6.i686.rpm libxml2-devel-2.9.1-6.el7_9.6.x86_64.rpm libxml2-static-2.9.1-6.el7_9.6.i686.rpm libxml2-static-2.9.1-6.el7_9.6.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: libxml2-2.9.1-6.el7_9.6.src.rpm
ppc64:

Read the Full Advisory


Advisory ID: RHSA-2021:3810-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3810
Issue date: 2021-10-12

Topic

An update for libxml2 is now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate security update Red Hat Enterprise Linux libxml2 use after free XPointer

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Bugs Fixed

1384424 - CVE-2016-4658 libxml2: Use after free via namespace node in XPointer ranges

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