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Red Hat Enterprise Linux 7 RHSA-2022-6834-01 Important Expat Use-After-Free

red hat
Calendar Grey October 6, 2022
Dist Redhat Esm H88
Review the significant expatriate safety bulletin for Red Hat Enterprise Linux 7, focusing on a crucial use-after-free vulnerability.
An update for expat 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

After installing the updated packages, applications using the Expat library must be restarted for the update to take effect.

Summary

Expat is a C library for parsing XML documents.
Security Fix(es):
* expat: a use-after-free in the doContent function in xmlparse.c (CVE-2022-40674)
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 update security fix Red Hat Enterprise Linux important use-after-free expat

References

https://access.redhat.com/security/cve/CVE-2022-40674 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: expat-2.1.0-15.el7_9.src.rpm
x86_64: expat-2.1.0-15.el7_9.i686.rpm expat-2.1.0-15.el7_9.x86_64.rpm expat-debuginfo-2.1.0-15.el7_9.i686.rpm expat-debuginfo-2.1.0-15.el7_9.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: expat-debuginfo-2.1.0-15.el7_9.i686.rpm expat-debuginfo-2.1.0-15.el7_9.x86_64.rpm expat-devel-2.1.0-15.el7_9.i686.rpm expat-devel-2.1.0-15.el7_9.x86_64.rpm expat-static-2.1.0-15.el7_9.i686.rpm expat-static-2.1.0-15.el7_9.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: expat-2.1.0-15.el7_9.src.rpm
x86_64: expat-2.1.0-15.el7_9.i686.rpm expat-2.1.0-15.el7_9.x86_64.rpm expat-debuginfo-2.1.0-15.el7_9.i686.rpm expat-debuginfo-2.1.0-15.el7_9.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64: expat-debuginfo-2.1.0-15.el7_9.i686.rpm expat-debuginfo-2.1.0-15.el7_9.x86_64.rpm expat-devel-2.1.0-15.el7_9.i686.rpm expat-devel-2.1.0-15.el7_9.x86_64.rpm expat-static-2.1.0-15.el7_9.i686.rpm expat-static-2.1.0-15.el7_9.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: expat-2.1.0-15.el7_9.src.rpm
ppc64: expat-2.1.0-15.el7_9.ppc.rpm expat-2.1.0-15.el7_9.ppc64.rpm expat-debuginfo-2.1.0-15.el7_9.ppc.rpm expat-debuginfo-2.1.0-15.el7_9.ppc64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:6834-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:6834
Issue date: 2022-10-06

Topic

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

Topics%20covered

Topics Covered

security advisory security update security fix Red Hat Enterprise Linux important use-after-free expat

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

2130769 - CVE-2022-40674 expat: a use-after-free in the doContent function in xmlparse.c

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