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[gentoo-announce] [ GLSA 202310-03 ] glibc: Multiple vulnerabilities

Posted on 04 October 2023
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 202310-03
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https://security.gentoo.org/
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Severity: High
Title: glibc: Multiple vulnerabilities
Date: October 04, 2023
Bugs: #867952, #914281, #915127
ID: 202310-03

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Synopsis
========
Multiple vulnerabilities in glibc could result in Local Privilege
Escalation.

Background
==========
glibc is a package that contains the GNU C library.

Affected packages
=================
Package Vulnerable Unaffected
-------------- ------------ ------------
sys-libs/glibc < 2.37-r7 >= 2.37-r7

Description
===========
Multiple vulnerabilities have been discovered in glibc. Please review
the CVE identifiers referenced below for details.

Impact
======
An attacker could elevate privileges from a local user to root.

Workaround
==========
There is no known workaround at this time.

Resolution
==========
All glibc users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-libs/glibc-2.37-r7"

References
==========
[ 1 ] CVE-2022-39046
https://nvd.nist.gov/vuln/detail/CVE-2022-39046
[ 2 ] CVE-2023-4527
https://nvd.nist.gov/vuln/detail/CVE-2023-4527
[ 3 ] CVE-2023-4806
https://nvd.nist.gov/vuln/detail/CVE-2023-4806
[ 4 ] CVE-2023-4911
https://nvd.nist.gov/vuln/detail/CVE-2023-4911

Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/202310-03

Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======
Copyright 2023 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5
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