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Red Hat 8: RHSA-2023:4529-01 Moderate: libxml2 DoS Security Fix

red hat
Calendar Grey August 8, 2023
Dist Redhat Esm H88
Debian releases important notification for libxml2 patch resolving security vulnerabilities. Key details provided.
An update for libxml2 is now available for Red Hat Enterprise Linux 8

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: NULL dereference in xmlSchemaFixupComplexType (CVE-2023-28484)
* libxml2: Hashing of empty dict strings isn't deterministic (CVE-2023-29469)
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 security issue Red Hat update DoS Moderate libxml2

References

https://access.redhat.com/security/cve/CVE-2023-28484 https://access.redhat.com/security/cve/CVE-2023-29469 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux AppStream (v. 8):
aarch64: libxml2-debuginfo-2.9.7-16.el8_8.1.aarch64.rpm libxml2-debugsource-2.9.7-16.el8_8.1.aarch64.rpm libxml2-devel-2.9.7-16.el8_8.1.aarch64.rpm python3-libxml2-debuginfo-2.9.7-16.el8_8.1.aarch64.rpm
ppc64le: libxml2-debuginfo-2.9.7-16.el8_8.1.ppc64le.rpm libxml2-debugsource-2.9.7-16.el8_8.1.ppc64le.rpm libxml2-devel-2.9.7-16.el8_8.1.ppc64le.rpm python3-libxml2-debuginfo-2.9.7-16.el8_8.1.ppc64le.rpm
s390x: libxml2-debuginfo-2.9.7-16.el8_8.1.s390x.rpm libxml2-debugsource-2.9.7-16.el8_8.1.s390x.rpm libxml2-devel-2.9.7-16.el8_8.1.s390x.rpm python3-libxml2-debuginfo-2.9.7-16.el8_8.1.s390x.rpm
x86_64: libxml2-debuginfo-2.9.7-16.el8_8.1.i686.rpm libxml2-debuginfo-2.9.7-16.el8_8.1.x86_64.rpm libxml2-debugsource-2.9.7-16.el8_8.1.i686.rpm libxml2-debugsource-2.9.7-16.el8_8.1.x86_64.rpm libxml2-devel-2.9.7-16.el8_8.1.i686.rpm libxml2-devel-2.9.7-16.el8_8.1.x86_64.rpm python3-libxml2-debuginfo-2.9.7-16.el8_8.1.i686.rpm python3-libxml2-debuginfo-2.9.7-16.el8_8.1.x86_64.rpm
Red Hat Enterprise Linux BaseOS (v. 8):
Source: libxml2-2.9.7-16.el8_8.1.src.rpm
aarch64: libxml2-2.9.7-16.el8_8.1.aarch64.rpm libxml2-debuginfo-2.9.7-16.el8_8.1.aarch64.rpm libxml2-debugsource-2.9.7-16.el8_8.1.aarch64.rpm

Read the Full Advisory


Advisory ID: RHSA-2023:4529-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:4529
Issue date: 2023-08-08

Topic

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 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 security issue Red Hat update DoS Moderate libxml2

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

Bugs Fixed

2185984 - CVE-2023-29469 libxml2: Hashing of empty dict strings isn't deterministic

2185994 - CVE-2023-28484 libxml2: NULL dereference in xmlSchemaFixupComplexType

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