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Debian dla-4469 : libasound2 - security update

medium Nessus Plugin ID 298163

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Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dla-4469 advisory.

 - ------------------------------------------------------------------------- Debian LTS Advisory DLA-4469-1 [email protected] https://www.debian.org/lts/security/ Paride Legovini February 05, 2026 https://wiki.debian.org/LTS
 - -------------------------------------------------------------------------

 Package : alsa-lib Version : 1.2.4-1.1+deb11u1 CVE ID : CVE-2026-25068

 A buffer overflow in the alsa-lib package can lead to a crash when a topology file (.tplg) has an excessive num_channels value. The alsa-lib package contains libraries and tools to interface with ALSA, the Advanced Linux Sound Architecture.

 For Debian 11 bullseye, this problem has been fixed in version 1.2.4-1.1+deb11u1.

 We recommend that you upgrade your alsa-lib packages.

 For the detailed security status of alsa-lib please refer to its security tracker page at:
 https://security-tracker.debian.org/tracker/alsa-lib

 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the libasound2 packages.

See Also

https://security-tracker.debian.org/tracker/source-package/alsa-lib

https://security-tracker.debian.org/tracker/CVE-2026-25068

https://packages.debian.org/source/bullseye/alsa-lib

Plugin Details

Severity: Medium

ID: 298163

File Name: debian_DLA-4469.nasl

Version: 1.1

Type: local

Agent: unix

Published: 2/5/2026

Updated: 2/5/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:P

CVSS Score Source: CVE-2026-25068

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 4.6

Threat Score: 1

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libasound2-plugin-smixer, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:libasound2-dev, p-cpe:/a:debian:debian_linux:libasound2-udeb, p-cpe:/a:debian:debian_linux:libatopology2, p-cpe:/a:debian:debian_linux:libasound2, p-cpe:/a:debian:debian_linux:libatopology-dev, p-cpe:/a:debian:debian_linux:libasound2-data, p-cpe:/a:debian:debian_linux:libasound2-doc

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 2/5/2026

Vulnerability Publication Date: 1/29/2026

Reference Information

CVE: CVE-2026-25068