SUSE-SU-2026:21445-1: moderate: Security update for avahi

[SLE-UPDATES]

# Security update for avahi

Announcement ID: SUSE-SU-2026:21445-1  
Release Date: 2026-04-27T12:27:43Z  
Rating: moderate  
References:

  * bsc#1256498
  * bsc#1256499
  * bsc#1256500

  
Cross-References:

  * CVE-2025-68276
  * CVE-2025-68468
  * CVE-2025-68471

  
CVSS scores:

  * CVE-2025-68276 ( SUSE ):  6.8
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-68276 ( SUSE ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-68276 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-68468 ( SUSE ):  7.1
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-68468 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  * CVE-2025-68468 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  * CVE-2025-68471 ( SUSE ):  7.1
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-68471 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  * CVE-2025-68471 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

  
Affected Products:

  * SUSE Linux Micro 6.1

  
  
An update that solves three vulnerabilities can now be installed.

## Description:

This update for avahi fixes the following issues:

  * CVE-2025-68276: reachable assertion in `avahi_wide_area_scan_cache` can lead
    to an `avahi-daemon` crash (bsc#1256498).
  * CVE-2025-68468: reachable assertion in `lookup_multicast_callback` can lead
    to an `avahi-daemon` crash (bsc#1256499).
  * CVE-2025-68471: reachable assertion in `lookup_start` can lead to an `avahi-
    daemon` crash (bsc#1256500).

## 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:

  * SUSE Linux Micro 6.1  
    zypper in -t patch SUSE-SLE-Micro-6.1-509=1

## Package List:

  * SUSE Linux Micro 6.1 (aarch64 ppc64le s390x x86_64)
    * libavahi-common3-0.8-slfo.1.1_6.1
    * avahi-0.8-slfo.1.1_6.1
    * avahi-debuginfo-0.8-slfo.1.1_6.1
    * libavahi-core7-debuginfo-0.8-slfo.1.1_6.1
    * libavahi-client3-0.8-slfo.1.1_6.1
    * avahi-debugsource-0.8-slfo.1.1_6.1
    * libavahi-client3-debuginfo-0.8-slfo.1.1_6.1
    * libavahi-core7-0.8-slfo.1.1_6.1
    * libavahi-common3-debuginfo-0.8-slfo.1.1_6.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-68276.html
  * https://www.suse.com/security/cve/CVE-2025-68468.html
  * https://www.suse.com/security/cve/CVE-2025-68471.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1256498
  * https://bugzilla.suse.com/show_bug.cgi?id=1256499
  * https://bugzilla.suse.com/show_bug.cgi?id=1256500

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