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Gentoo Linux Security Advisory                           GLSA 202311-18
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                                           https://security.gentoo.org/
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 Severity: High
    Title: GLib: Multiple Vulnerabilities
     Date: November 27, 2023
     Bugs: #886197, #887807
       ID: 202311-18

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Synopsis
========

Multiple vulnerabilities have been discovered in GLib.

Background
==========

GLib is a library providing a number of GNOME's core objects and
functions.

Affected packages
=================

Package        Vulnerable    Unaffected
-------------  ------------  ------------
dev-libs/glib  < 2.74.4      >= 2.74.4

Description
===========

Multiple vulnerabilities have been discovered in GLib. Please review the
referenced CVEs for details.

Impact
======

GVariant deserialization is vulnerable to an exponential blowup issue
where a crafted GVariant can cause excessive processing, leading to
denial of service.

GVariant deserialization fails to validate that the input conforms to
the expected format, leading to denial of service.

GVariant deserialization is vulnerable to a slowdown issue where a
crafted GVariant can cause excessive processing, leading to denial of
service.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All GLib users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-libs/glib-2.74.4"

References
==========

[ 1 ] CVE-2023-29499
      https://nvd.nist.gov/vuln/detail/CVE-2023-29499
[ 2 ] CVE-2023-32611
      https://nvd.nist.gov/vuln/detail/CVE-2023-32611
[ 3 ] CVE-2023-32665
      https://nvd.nist.gov/vuln/detail/CVE-2023-32665

Availability
============

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

 https://security.gentoo.org/glsa/202311-18

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/