SUSE-SU-2026:1191-1: moderate: Security update for avahi

[SLE-UPDATES]

# Security update for avahi

Announcement ID: SUSE-SU-2026:1191-1  
Release Date: 2026-04-06T10:54:02Z  
Rating: moderate  
References:

  * bsc#1257235

  
Cross-References:

  * CVE-2026-24401

  
CVSS scores:

  * CVE-2026-24401 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  * CVE-2026-24401 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  * CVE-2026-24401 ( 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 Enterprise Micro 5.2
  * SUSE Linux Enterprise Micro for Rancher 5.2

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for avahi fixes the following issue:

  * CVE-2026-24401: avahi-daemon can be crashed via a segmentation fault by
    sending an unsolicited mDNS response containing a recursive CNAME record
    (bsc#1257235).

## 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 Enterprise Micro 5.2  
    zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-1191=1

  * SUSE Linux Enterprise Micro for Rancher 5.2  
    zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-1191=1

## Package List:

  * SUSE Linux Enterprise Micro 5.2 (aarch64 s390x x86_64)
    * libavahi-client3-debuginfo-0.7-150100.3.49.1
    * libavahi-common3-debuginfo-0.7-150100.3.49.1
    * libavahi-core7-debuginfo-0.7-150100.3.49.1
    * libavahi-core7-0.7-150100.3.49.1
    * avahi-debugsource-0.7-150100.3.49.1
    * libavahi-common3-0.7-150100.3.49.1
    * avahi-debuginfo-0.7-150100.3.49.1
    * avahi-0.7-150100.3.49.1
    * libavahi-client3-0.7-150100.3.49.1
  * SUSE Linux Enterprise Micro for Rancher 5.2 (aarch64 s390x x86_64)
    * libavahi-client3-debuginfo-0.7-150100.3.49.1
    * libavahi-common3-debuginfo-0.7-150100.3.49.1
    * libavahi-core7-debuginfo-0.7-150100.3.49.1
    * libavahi-core7-0.7-150100.3.49.1
    * avahi-debugsource-0.7-150100.3.49.1
    * libavahi-common3-0.7-150100.3.49.1
    * avahi-debuginfo-0.7-150100.3.49.1
    * avahi-0.7-150100.3.49.1
    * libavahi-client3-0.7-150100.3.49.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-24401.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1257235

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