[USN-7971-1] GLib vulnerability

[noreply+usn-bot at canonical.com]

==========================================================================
Ubuntu Security Notice USN-7971-1
January 21, 2026

glib2.0 vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 25.10
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS

Summary:

GLib could be made to crash or run programs if it received specially
crafted input.

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

Details:

It was discovered that GLib incorrectly handled the buffered input stream
API. An attacker could use this issue to cause GLib to crash, resulting in
a denial of service, or possibly execute arbitrary code.

Update instructions:

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

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

Ubuntu 24.04 LTS
  libglib2.0-0t64                 2.80.0-6ubuntu3.7
  libglib2.0-bin                  2.80.0-6ubuntu3.7

Ubuntu 22.04 LTS
  libglib2.0-0                    2.72.4-0ubuntu2.8
  libglib2.0-bin                  2.72.4-0ubuntu2.8

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

References:
  https://ubuntu.com/security/notices/USN-7971-1
  CVE-2026-0988

Package Information:
  https://launchpad.net/ubuntu/+source/glib2.0/2.86.0-2ubuntu0.2
  https://launchpad.net/ubuntu/+source/glib2.0/2.80.0-6ubuntu3.7
  https://launchpad.net/ubuntu/+source/glib2.0/2.72.4-0ubuntu2.8
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