========================================================================== Ubuntu Security Notice USN-8044-2 June 09, 2026
alsa-lib vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
Summary:
alsa-lib could be made to crash or run programs if it opened a specially
crafted file.
Software Description:
- alsa-lib: shared library for ALSA applications
Details:
USN-8044-1 fixed a vulnerability in alsa-lib. This update provides the
corresponding fix for alsa-lib on Ubuntu 20.04 LTS.
Original advisory details:
It was discovered that alsa-lib incorrectly handled the topology mixer
control decoder. A local attacker could use a specially crafted topology
file to cause alsa-lib 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 20.04 LTS
libasound2 1.2.2-2.1ubuntu2.5+esm1
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-8044-2
https://ubuntu.com/security/notices/USN-8044-1
CVE-2026-25068
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