SUSE-SU-2026:4735-1: moderate: Security update for alsa

[SLE-SECURITY-UPDATES]

# Security update for alsa

Announcement ID: SUSE-SU-2026:4735-1  
Release Date: 2026-10-19T12:56:35Z  
Rating: moderate  
References:

  * bsc#1282563
  * bsc#1282564

  
Cross-References:

  * CVE-2026-96674
  * CVE-2026-96675

  
CVSS scores:

  * CVE-2026-96674 ( SUSE ):  4.8
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-96674 ( SUSE ):  4.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
  * CVE-2026-96674 ( NVD ):  4.8
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2026-96674 ( NVD ):  4.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
  * CVE-2026-96675 ( SUSE ):  4.8
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-96675 ( SUSE ):  3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-96675 ( NVD ):  4.8
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2026-96675 ( NVD ):  3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

  
Affected Products:

  * openSUSE Leap 15.5
  * SUSE Linux Enterprise Micro 5.5

  
  
An update that solves two vulnerabilities can now be installed.

## Description:

This update for alsa fixes the following issues:

  * CVE-2026-96674: computation of combined topology element size using 32-bit
    arithmetic in `src/topology/ctl.c` allows for integer overflow that can
    cause sensitive data leak and application crashes (bsc#1282564).
  * CVE-2026-96675: failure to validate sparse binding indices before array
    access when processing ALSA configuration files can lead to an assertion
    failure and an application abort (bsc#1282563).

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * openSUSE Leap 15.5  
    zypper in -t patch SUSE-2026-4735

  * SUSE Linux Enterprise Micro 5.5  
    zypper in -t patch SUSE-SLE-Micro-5.5-2026-4735

## Package List:

  * openSUSE Leap 15.5 (aarch64 i586 ppc64le s390x x86_64)
    * libasound2-debuginfo-1.2.8-150500.3.6.1
    * libasound2-1.2.8-150500.3.6.1
    * alsa-devel-1.2.8-150500.3.6.1
    * alsa-1.2.8-150500.3.6.1
    * alsa-debugsource-1.2.8-150500.3.6.1
  * openSUSE Leap 15.5 (x86_64)
    * libatopology2-32bit-1.2.8-150500.3.6.1
    * alsa-topology-devel-32bit-1.2.8-150500.3.6.1
    * alsa-devel-32bit-1.2.8-150500.3.6.1
    * libasound2-32bit-1.2.8-150500.3.6.1
    * libatopology2-32bit-debuginfo-1.2.8-150500.3.6.1
    * libasound2-32bit-debuginfo-1.2.8-150500.3.6.1
  * openSUSE Leap 15.5 (aarch64_ilp32)
    * alsa-devel-64bit-1.2.8-150500.3.6.1
    * alsa-topology-devel-64bit-1.2.8-150500.3.6.1
    * libatopology2-64bit-debuginfo-1.2.8-150500.3.6.1
    * libasound2-64bit-1.2.8-150500.3.6.1
    * libasound2-64bit-debuginfo-1.2.8-150500.3.6.1
    * libatopology2-64bit-1.2.8-150500.3.6.1
  * openSUSE Leap 15.5 (noarch)
    * alsa-docs-1.2.8-150500.3.6.1
  * openSUSE Leap 15.5 (aarch64 i586 ppc64le x86_64)
    * libatopology2-debuginfo-1.2.8-150500.3.6.1
    * libatopology2-1.2.8-150500.3.6.1
    * alsa-topology-devel-1.2.8-150500.3.6.1
  * SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64)
    * libasound2-debuginfo-1.2.8-150500.3.6.1
    * alsa-debugsource-1.2.8-150500.3.6.1
    * libasound2-1.2.8-150500.3.6.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-96674.html
  * https://www.suse.com/security/cve/CVE-2026-96675.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1282563
  * https://bugzilla.suse.com/show_bug.cgi?id=1282564

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