Headline
Gentoo Linux Security Advisory 202406-01
Gentoo Linux Security Advisory 202406-1 - A vulnerability has been discovered in GLib, which can lead to privilege escalation. Versions greater than or equal to 2.78.6 are affected.
Gentoo Linux Security Advisory GLSA 202406-01
https://security.gentoo.org/
Severity: High
Title: GLib: Privilege Escalation
Date: June 22, 2024
Bugs: #931507
ID: 202406-01
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
[email protected] 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
Related news
Ubuntu Security Notice 6768-1 - Alicia Boya García discovered that GLib incorrectly handled signal subscriptions. A local attacker could use this issue to spoof D-Bus signals resulting in a variety of impacts including possible privilege escalation.
Debian Linux Security Advisory 5682-1 - Alicia Boya Garcia reported that the GDBus signal subscriptions in the GLib library are prone to a spoofing vulnerability. A local attacker can take advantage of this flaw to cause a GDBus-based client to behave incorrectly, with an application-dependent impact.