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[USN-7942-1] GLib vulnerabilities

Posted on 06 January 2026
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-7942-1
January 06, 2026

glib2.0 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 25.10
- Ubuntu 25.04
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS

Summary:

Several security issues were fixed in GLib.

Software Description:
- glib2.0: GLib library of C routines

Details:

It was discovered that GLib incorrectly handled escaping URI strings. An
attacker could use this issue to cause GLib to crash, resulting in a
denial of service, or possibly execute arbitrary code. (CVE-2025-13601)

It was discovered that GLib incorrectly parsed certain GVariants. An
attacker could use this issue to cause GLib to crash, resulting in a
denial of service, or possibly execute arbitrary code. (CVE-2025-14087)

It was discovered that GLib incorrectly parsed certain long invalid ISO
8601 timestamps. An attacker could possibly use this issue to cause GLib to
crash, resulting in a denial of service. This issue only affected Ubuntu
22.04 LTS and Ubuntu 24.04 LTS. (CVE-2025-3360)

It was discovered that GLib incorrectly handled GString memory operations.
An attacker could use this issue to cause GLib to crash, resulting in a
denial of service, or possibly execute arbitrary code. This issue only
affected Ubuntu 24.04 LTS and Ubuntu 25.04. (CVE-2025-6052)

It was discovered that GLib incorrectly handled creating temporary files.
An attacker could possibly use this issue to access unauthorized data. This
issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 25.04.
(CVE-2025-7039)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 25.10
libglib2.0-0t64 2.86.0-2ubuntu0.1
libglib2.0-bin 2.86.0-2ubuntu0.1

Ubuntu 25.04
libglib2.0-0t64 2.84.1-1ubuntu0.2
libglib2.0-bin 2.84.1-1ubuntu0.2

Ubuntu 24.04 LTS
libglib2.0-0t64 2.80.0-6ubuntu3.6
libglib2.0-bin 2.80.0-6ubuntu3.6

Ubuntu 22.04 LTS
libglib2.0-0 2.72.4-0ubuntu2.7
libglib2.0-bin 2.72.4-0ubuntu2.7

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-7942-1
CVE-2025-13601, CVE-2025-14087, CVE-2025-3360, CVE-2025-6052,
CVE-2025-7039

Package Information:
https://launchpad.net/ubuntu/+source/glib2.0/2.86.0-2ubuntu0.1
https://launchpad.net/ubuntu/+source/glib2.0/2.84.1-1ubuntu0.2
https://launchpad.net/ubuntu/+source/glib2.0/2.80.0-6ubuntu3.6
https://launchpad.net/ubuntu/+source/glib2.0/2.72.4-0ubuntu2.7

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