SUSE-SU-2026:3216-1: moderate: Security update for avahi

[SLE-UPDATES]

# Security update for avahi

Announcement ID: SUSE-SU-2026:3216-1  
Release Date: 2026-07-23T17:33:11Z  
Rating: moderate  
References:

  * bsc#1255451

  
Cross-References:

  * CVE-2025-59529

  
CVSS scores:

  * CVE-2025-59529 ( 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-2025-59529 ( SUSE ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-59529 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

  
Affected Products:

  * SUSE Linux Enterprise Server 12 SP5
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
  * SUSE Linux Enterprise Server for SAP Applications 12 SP5

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for avahi fixes the following issue:

  * CVE-2025-59529: local DoS due to simple protocol server ignoring client
    limit CLIENTS_MAX (bsc#1255451).

## 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 Server 12 SP5 LTSS Extended Security  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-3216=1

## Package List:

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    * libdns_sd-0.6.32-32.45.1
    * libdns_sd-debuginfo-0.6.32-32.45.1
    * libavahi-client3-debuginfo-32bit-0.6.32-32.45.1
    * libavahi-common3-debuginfo-32bit-0.6.32-32.45.1
    * avahi-debuginfo-32bit-0.6.32-32.45.1
    * libavahi-common3-debuginfo-0.6.32-32.45.1
    * libavahi-client3-0.6.32-32.45.1
    * avahi-utils-debuginfo-0.6.32-32.45.1
    * avahi-debuginfo-0.6.32-32.45.1
    * libavahi-common3-32bit-0.6.32-32.45.1
    * avahi-debugsource-0.6.32-32.45.1
    * avahi-compat-mDNSResponder-devel-0.6.32-32.45.1
    * libavahi-core7-debuginfo-0.6.32-32.45.1
    * avahi-utils-0.6.32-32.45.1
    * avahi-0.6.32-32.45.1
    * libavahi-client3-32bit-0.6.32-32.45.1
    * libavahi-core7-0.6.32-32.45.1
    * libdns_sd-32bit-0.6.32-32.45.1
    * avahi-compat-howl-devel-0.6.32-32.45.1
    * libdns_sd-debuginfo-32bit-0.6.32-32.45.1
    * libavahi-common3-0.6.32-32.45.1
    * libavahi-devel-0.6.32-32.45.1
    * libavahi-client3-debuginfo-0.6.32-32.45.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (noarch)
    * avahi-lang-0.6.32-32.45.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-59529.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1255451

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