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openSUSE avahi Moderate Denial of Service Fix 2026-3218-1

opensuse
Calendar Grey July 24, 2026
Scroller Opensuse
A moderate security advisory for openSUSE addressing local DoS in avahi, including installation instructions.
SUSE released a security update addressing CVE-2025-59529, which causes a local denial of service in avahi

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 denial of service update 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 Package Hub 15 15-SP7

zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-3218=1

* Desktop Applications Module 15-SP7

zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-SP7-2026-3218=1

* Basesystem Module 15-SP7

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-3218=1

* openSUSE Leap 15.6

zypper in -t patch SUSE-2026-3218=1

Package List

* Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)

* libavahi-gobject0-debuginfo-0.8-150600.15.21.1

* avahi-debugsource-0.8-150600.15.21.1

* avahi-compat-mDNSResponder-devel-0.8-150600.15.21.1

* libavahi-ui-gtk3-0-0.8-150600.15.21.1

* libavahi-ui-gtk3-0-debuginfo-0.8-150600.15.21.1

* avahi-utils-debuginfo-0.8-150600.15.21.1

* avahi-debuginfo-0.8-150600.15.21.1

* libdns_sd-debuginfo-0.8-150600.15.21.1

* libhowl0-debuginfo-0.8-150600.15.21.1

* typelib-1_0-Avahi-0_6-0.8-150600.15.21.1

* libavahi-client3-0.8-150600.15.21.1

* avahi-utils-0.8-150600.15.21.1

* libavahi-glib1-debuginfo-0.8-150600.15.21.1

* avahi-0.8-150600.15.21.1

* avahi-compat-howl-devel-0.8-150600.15.21.1

* libavahi-glib-devel-0.8-150600.15.21.1

* libhowl0-0.8-150600.15.21.1

* libdns_sd-0.8-150600.15.21.1

* libavahi-glib1-0.8-150600.15.21.1

* avahi-glib2-debugsource-0.8-150600.15.21.1

* libavahi-core7-0.8-150600.15.21.1

* libavahi-common3-debuginfo-0.8-150600.15.21.1

* libavahi-gobject0-0.8-150600.15.21.1

*...

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-2026:3218-1
Release Date: 2026-07-23T17:34:30Z

Topics%20covered

Topics Covered

security advisory moderate denial of service update avahi OpenSUSE

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