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openSUSE Avahi Moderate DoS CVE-2025-59529 Advisory 2026-3217-1

opensuse
Calendar Grey July 24, 2026
Scroller Opensuse
Install the latest security update for avahi in openSUSE addressing local denial of service risk.
SUSE has released a security update for avahi to address CVE-2025-59529, which allows local denial of service due to a client limit issue in the protocol server.

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).

Topics%20covered

Topics Covered

security advisory moderate update DoS avahi OpenSUSE

Patch

## 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 5.5

zypper in -t patch SUSE-SLE-Micro-5.5-2026-3217=1

* SUSE Linux Enterprise Micro for Rancher 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2026-3217=1

* SUSE Linux Enterprise Micro 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2026-3217=1

* SUSE Linux Enterprise Micro for Rancher 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2026-3217=1

* SUSE Linux Enterprise Micro 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2026-3217=1

* openSUSE Leap 15.4

zypper in -t patch SUSE-2026-3217=1

Package List

* openSUSE Leap 15.4 (aarch64 i586 ppc64le s390x x86_64)

* avahi-autoipd-debuginfo-0.8-150400.7.34.1

* python3-avahi-0.8-150400.7.34.1

* libhowl0-debuginfo-0.8-150400.7.34.1

* avahi-utils-gtk-debuginfo-0.8-150400.7.34.1

* libavahi-gobject0-debuginfo-0.8-150400.7.34.1

* libavahi-qt5-1-0.8-150400.7.34.1

* avahi-autoipd-0.8-150400.7.34.1

* python3-avahi-gtk-0.8-150400.7.34.1

* libavahi-core7-0.8-150400.7.34.1

* libavahi-qt5-1-debuginfo-0.8-150400.7.34.1

* libavahi-glib-devel-0.8-150400.7.34.1

* libavahi-glib1-0.8-150400.7.34.1

* libdns_sd-0.8-150400.7.34.1

* avahi-compat-mDNSResponder-devel-0.8-150400.7.34.1

* libhowl0-0.8-150400.7.34.1

* libavahi-common3-0.8-150400.7.34.1

* libavahi-ui-gtk3-0-debuginfo-0.8-150400.7.34.1

* avahi-compat-howl-devel-0.8-150400.7.34.1

* avahi-qt5-debugsource-0.8-150400.7.34.1

* libavahi-common3-debuginfo-0.8-150400.7.34.1

* libavahi-glib1-debuginfo-0.8-150400.7.34.1

* libdns_sd-debuginfo-0.8-150400.7.34.1

* avahi-debugsource-0.8-150400.7.34.1

* libavahi-libevent1-0.8-150400.7.34.1

*...

Read the Full Advisory

References

* bsc#1255451

## References:

* https://www.suse.com/security/cve/CVE-2025-59529.html

* https://bugzilla.suse.com/show_bug.cgi?id=1255451

Severity
moderate
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:3217-1
Release Date: 2026-07-23T17:33:52Z

Topics%20covered

Topics Covered

security advisory moderate update DoS avahi OpenSUSE

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