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[USN-8538-1] alsa-lib vulnerability

Posted on 14 July 2026
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-8538-1
July 14, 2026

alsa-lib vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 26.04 LTS
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS

Summary:

alsa-lib could be made to crash or run programs as your login if it opened
a specially crafted file.

Software Description:
- alsa-lib: shared library for ALSA applications

Details:

It was discovered that alsa-lib incorrectly handled certain ALSA
configuration text. An attacker could use this issue 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 26.04 LTS
libasound2t64 1.2.15.3-1ubuntu1.1

Ubuntu 24.04 LTS
libasound2t64 1.2.11-1ubuntu0.3

Ubuntu 22.04 LTS
libasound2 1.2.6.1-1ubuntu1.2

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

References:
https://ubuntu.com/security/notices/USN-8538-1
CVE-2026-56109

Package Information:
https://launchpad.net/ubuntu/+source/alsa-lib/1.2.15.3-1ubuntu1.1
https://launchpad.net/ubuntu/+source/alsa-lib/1.2.11-1ubuntu0.3
https://launchpad.net/ubuntu/+source/alsa-lib/1.2.6.1-1ubuntu1.2

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