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[gentoo-announce] [ GLSA 202406-01 ] GLib: Privilege Escalation

Posted on 22 June 2024
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 202406-01
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https://security.gentoo.org/
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Severity: High
Title: GLib: Privilege Escalation
Date: June 22, 2024
Bugs: #931507
ID: 202406-01

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Synopsis
========
A vulnerability has been discovered in GLib, which can lead to privilege
escalation.

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

Affected packages
=================
Package Vulnerable Unaffected
------------- ------------ ------------
dev-libs/glib < 2.78.6 >= 2.78.6

Description
===========
A vulnerability has been discovered in GLib. Please review the CVE
identifier referenced below for details.

Impact
======
When a GDBus-based client subscribes to signals from a trusted system
service such as NetworkManager or logind on a shared computer, other
users of the same computer can send spoofed D-Bus signals that the
GDBus-based client will wrongly interpret as having been sent by the
trusted system service. This could lead to the GDBus-based client
behaving incorrectly, with an application-dependent impact.

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-2.78.6"

References
==========
[ 1 ] CVE-2024-34397
https://nvd.nist.gov/vuln/detail/CVE-2024-34397

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

https://security.gentoo.org/glsa/202406-01

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 2024 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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