SUSE-SU-2026:22853-1: moderate: Security update for avahi

SLE-SECURITY-UPDATES null at suse.de
Mon Jul 27 17:30:34 UTC 2026 

# Security update for avahi

Announcement ID: SUSE-SU-2026:22853-1  
Release Date: 2026-07-22T12:41:51Z  
Rating: moderate  
References:

  * bsc#1255451
  * jsc#PED-14835
  * jsc#PED-14836

  
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 16.0
  * SUSE Linux Enterprise Server for SAP applications 16.0

  
  
An update that solves one vulnerability and contains two features can now be
installed.

## Description:

This update for avahi fixes the following issues:

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

Changes for avahi:

  * Make /var/lib/avahi-autoipd a ghost dir instead of packaging it since avahi-
    autoipd creates it on start (jsc#PED-14836).
  * Use libalternative instead of update-alternatives in TW and SLFO
    (jsc#PED-14835).

## 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 for SAP applications 16.0  
    zypper in -t patch SUSE-SLES-16.0-1328=1

  * SUSE Linux Enterprise Server 16.0  
    zypper in -t patch SUSE-SLES-16.0-1328=1

## Package List:

  * SUSE Linux Enterprise Server for SAP applications 16.0 (ppc64le x86_64)
    * libavahi-libevent1-debuginfo-0.8-160000.6.1
    * libdns_sd-0.8-160000.6.1
    * libavahi-core7-debuginfo-0.8-160000.6.1
    * avahi-autoipd-0.8-160000.6.1
    * typelib-1_0-Avahi-0_6-0.8-160000.6.1
    * libhowl0-debuginfo-0.8-160000.6.1
    * libavahi-ui-gtk3-0-debuginfo-0.8-160000.6.1
    * libavahi-glib-devel-0.8-160000.6.1
    * avahi-debugsource-0.8-160000.6.1
    * libavahi-gobject0-0.8-160000.6.1
    * avahi-glib2-debugsource-0.8-160000.6.1
    * libavahi-glib1-0.8-160000.6.1
    * libavahi-gobject-devel-0.8-160000.6.1
    * libavahi-gobject0-debuginfo-0.8-160000.6.1
    * libhowl0-0.8-160000.6.1
    * python3-avahi-gtk-0.8-160000.6.1
    * avahi-compat-mDNSResponder-devel-0.8-160000.6.1
    * avahi-utils-gtk-0.8-160000.6.1
    * avahi-utils-gtk-debuginfo-0.8-160000.6.1
    * libdns_sd-debuginfo-0.8-160000.6.1
    * libavahi-libevent1-0.8-160000.6.1
    * libavahi-glib1-debuginfo-0.8-160000.6.1
    * python313-avahi-0.8-160000.6.1
    * avahi-utils-0.8-160000.6.1
    * libavahi-core7-0.8-160000.6.1
    * libavahi-common3-0.8-160000.6.1
    * libavahi-common3-debuginfo-0.8-160000.6.1
    * libavahi-ui-gtk3-0-0.8-160000.6.1
    * avahi-autoipd-debuginfo-0.8-160000.6.1
    * libavahi-devel-0.8-160000.6.1
    * libavahi-client3-0.8-160000.6.1
    * avahi-debuginfo-0.8-160000.6.1
    * avahi-utils-debuginfo-0.8-160000.6.1
    * libavahi-client3-debuginfo-0.8-160000.6.1
    * avahi-0.8-160000.6.1
  * SUSE Linux Enterprise Server for SAP applications 16.0 (noarch)
    * avahi-lang-0.8-160000.6.1
  * SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64)
    * libavahi-libevent1-debuginfo-0.8-160000.6.1
    * libdns_sd-0.8-160000.6.1
    * avahi-autoipd-0.8-160000.6.1
    * libavahi-core7-debuginfo-0.8-160000.6.1
    * typelib-1_0-Avahi-0_6-0.8-160000.6.1
    * libhowl0-debuginfo-0.8-160000.6.1
    * libavahi-ui-gtk3-0-debuginfo-0.8-160000.6.1
    * libavahi-glib-devel-0.8-160000.6.1
    * avahi-debugsource-0.8-160000.6.1
    * libavahi-gobject0-0.8-160000.6.1
    * avahi-utils-debuginfo-0.8-160000.6.1
    * avahi-glib2-debugsource-0.8-160000.6.1
    * libavahi-glib1-0.8-160000.6.1
    * libavahi-gobject-devel-0.8-160000.6.1
    * libavahi-gobject0-debuginfo-0.8-160000.6.1
    * libhowl0-0.8-160000.6.1
    * avahi-compat-mDNSResponder-devel-0.8-160000.6.1
    * python3-avahi-gtk-0.8-160000.6.1
    * avahi-utils-gtk-0.8-160000.6.1
    * avahi-utils-gtk-debuginfo-0.8-160000.6.1
    * libdns_sd-debuginfo-0.8-160000.6.1
    * libavahi-libevent1-0.8-160000.6.1
    * libavahi-glib1-debuginfo-0.8-160000.6.1
    * python313-avahi-0.8-160000.6.1
    * avahi-utils-0.8-160000.6.1
    * libavahi-common3-0.8-160000.6.1
    * libavahi-common3-debuginfo-0.8-160000.6.1
    * libavahi-ui-gtk3-0-0.8-160000.6.1
    * avahi-autoipd-debuginfo-0.8-160000.6.1
    * libavahi-devel-0.8-160000.6.1
    * avahi-debuginfo-0.8-160000.6.1
    * libavahi-client3-0.8-160000.6.1
    * libavahi-core7-0.8-160000.6.1
    * libavahi-client3-debuginfo-0.8-160000.6.1
    * avahi-0.8-160000.6.1
  * SUSE Linux Enterprise Server 16.0 (noarch)
    * avahi-lang-0.8-160000.6.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-59529.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1255451
  * https://jira.suse.com/browse/PED-14835
  * https://jira.suse.com/browse/PED-14836

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