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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