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Gentoo Linux Security Advisory                           GLSA 202208-24
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: GNU C Library: Multiple Vulnerabilities
     Date: August 14, 2022
     Bugs: #803437, #807935, #831096, #831212
       ID: 202208-24

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Synopsis
=======
Multiple vulnerabilities have been discovered in the GNU C Library, the
worst of which could result in denial of service.

Background
=========
The GNU C library is the standard C library used by Gentoo Linux
systems. It provides programs with basic facilities and interfaces to
system calls. ld.so is the dynamic linker which prepares dynamically
linked programs for execution by resolving runtime dependencies and
related functions.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  sys-libs/glibc             < 2.34                        >= 2.34

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

Impact
=====
Please review the referenced CVE identifiers for details.

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

Resolution
=========
All GNU C Library users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=sys-libs/glibc-2.34-r7"

References
=========
[ 1 ] CVE-2021-3998
      https://nvd.nist.gov/vuln/detail/CVE-2021-3998
[ 2 ] CVE-2021-3999
      https://nvd.nist.gov/vuln/detail/CVE-2021-3999
[ 3 ] CVE-2021-35942
      https://nvd.nist.gov/vuln/detail/CVE-2021-35942
[ 4 ] CVE-2021-38604
      https://nvd.nist.gov/vuln/detail/CVE-2021-38604
[ 5 ] CVE-2022-23218
      https://nvd.nist.gov/vuln/detail/CVE-2022-23218
[ 6 ] CVE-2022-23219
      https://nvd.nist.gov/vuln/detail/CVE-2022-23219

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

 https://security.gentoo.org/glsa/202208-24

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 2022 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