USN-8044-2: alsa-lib vulnerability
Publication date
9 June 2026
Overview
alsa-lib could be made to crash or run programs if it opened a specially crafted file.
Releases
Packages
- 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.
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
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 20.04 LTS focal | libasound2 – 1.2.2-2.1ubuntu2.5+esm1 | ||
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