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Red Hat Security Advisory 2021-3810-01

Red Hat Security Advisory 2021-3810-01
Posted Oct 13, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3810-01 - The libxml2 library is a development toolbox providing the implementation of various XML standards. Issues addressed include a use-after-free vulnerability.

tags | advisory
systems | linux, redhat
advisories | CVE-2016-4658
MD5 | a794a568104b6acc9f4ec3b68e56a4eb

Red Hat Security Advisory 2021-3810-01

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

Synopsis: Moderate: libxml2 security update
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
CVE Names: CVE-2016-4658
=====================================================================

1. Summary:

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 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.

2. 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

3. Description:

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.

4. 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.

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

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

6. 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:
libxml2-2.9.1-6.el7_9.6.ppc.rpm
libxml2-2.9.1-6.el7_9.6.ppc64.rpm
libxml2-debuginfo-2.9.1-6.el7_9.6.ppc.rpm
libxml2-debuginfo-2.9.1-6.el7_9.6.ppc64.rpm
libxml2-devel-2.9.1-6.el7_9.6.ppc.rpm
libxml2-devel-2.9.1-6.el7_9.6.ppc64.rpm
libxml2-python-2.9.1-6.el7_9.6.ppc64.rpm

ppc64le:
libxml2-2.9.1-6.el7_9.6.ppc64le.rpm
libxml2-debuginfo-2.9.1-6.el7_9.6.ppc64le.rpm
libxml2-devel-2.9.1-6.el7_9.6.ppc64le.rpm
libxml2-python-2.9.1-6.el7_9.6.ppc64le.rpm

s390x:
libxml2-2.9.1-6.el7_9.6.s390.rpm
libxml2-2.9.1-6.el7_9.6.s390x.rpm
libxml2-debuginfo-2.9.1-6.el7_9.6.s390.rpm
libxml2-debuginfo-2.9.1-6.el7_9.6.s390x.rpm
libxml2-devel-2.9.1-6.el7_9.6.s390.rpm
libxml2-devel-2.9.1-6.el7_9.6.s390x.rpm
libxml2-python-2.9.1-6.el7_9.6.s390x.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-devel-2.9.1-6.el7_9.6.i686.rpm
libxml2-devel-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 Server Optional (v. 7):

ppc64:
libxml2-debuginfo-2.9.1-6.el7_9.6.ppc.rpm
libxml2-debuginfo-2.9.1-6.el7_9.6.ppc64.rpm
libxml2-static-2.9.1-6.el7_9.6.ppc.rpm
libxml2-static-2.9.1-6.el7_9.6.ppc64.rpm

ppc64le:
libxml2-debuginfo-2.9.1-6.el7_9.6.ppc64le.rpm
libxml2-static-2.9.1-6.el7_9.6.ppc64le.rpm

s390x:
libxml2-debuginfo-2.9.1-6.el7_9.6.s390.rpm
libxml2-debuginfo-2.9.1-6.el7_9.6.s390x.rpm
libxml2-static-2.9.1-6.el7_9.6.s390.rpm
libxml2-static-2.9.1-6.el7_9.6.s390x.rpm

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-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 Workstation (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-devel-2.9.1-6.el7_9.6.i686.rpm
libxml2-devel-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 Workstation 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-static-2.9.1-6.el7_9.6.i686.rpm
libxml2-static-2.9.1-6.el7_9.6.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/

7. References:

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

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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