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openSUSE avahi Moderate Issue Crash Fix Advisory SUSE-SU-2026-2311-1

opensuse
Calendar Grey June 9, 2026
Dist Opensuse Esm H88
# Security update for avahi Announcement ID: SUSE-SU-2026:2311-1 Release Date: 2026-06-09T11:05:49Z
An update that solves two vulnerabilities can now be installed.

Description

This update for avahi fixes the following issue:

* CVE-2026-24401: uncontrolled recursion in `lookup_handle_cname` can crash

the `avahi-daemon` (bsc#1257235).

* CVE-2026-34933: reachable assertion in `transport_flags_from_domain` can

crash the `avahi-daemon` (bsc#1261546).

Topics%20covered

Topics Covered

security advisory moderate crash avahi OpenSUSE uncontrolled recursion

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:

* openSUSE Leap 15.4

zypper in -t patch SUSE-2026-2311=1

* SUSE Linux Enterprise Micro for Rancher 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2026-2311=1

* SUSE Linux Enterprise Micro 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2026-2311=1

* SUSE Linux Enterprise Micro for Rancher 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2026-2311=1

* SUSE Linux Enterprise Micro 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2026-2311=1

* SUSE Linux Enterprise Micro 5.5

zypper in -t patch SUSE-SLE-Micro-5.5-2026-2311=1

Package List

* openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64 i586)

* avahi-0.8-150400.7.31.2

* avahi-glib2-debugsource-0.8-150400.7.31.2

* libavahi-glib-devel-0.8-150400.7.31.2

* typelib-1_0-Avahi-0_6-0.8-150400.7.31.2

* avahi-compat-mDNSResponder-devel-0.8-150400.7.31.2

* libavahi-core7-debuginfo-0.8-150400.7.31.2

* libavahi-client3-debuginfo-0.8-150400.7.31.2

* libhowl0-0.8-150400.7.31.2

* python3-avahi-gtk-0.8-150400.7.31.2

* avahi-utils-0.8-150400.7.31.2

* libavahi-libevent1-0.8-150400.7.31.2

* libavahi-gobject-devel-0.8-150400.7.31.2

* libavahi-qt5-1-debuginfo-0.8-150400.7.31.2

* avahi-qt5-debugsource-0.8-150400.7.31.2

* avahi-compat-howl-devel-0.8-150400.7.31.2

* avahi-debugsource-0.8-150400.7.31.2

* libavahi-ui-gtk3-0-debuginfo-0.8-150400.7.31.2

* avahi-autoipd-0.8-150400.7.31.2

* avahi-debuginfo-0.8-150400.7.31.2

* libavahi-common3-0.8-150400.7.31.2

* libavahi-common3-debuginfo-0.8-150400.7.31.2

* libavahi-glib1-debuginfo-0.8-150400.7.31.2

* libhowl0-debuginfo-0.8-150400.7.31.2

*...

Read the Full Advisory

References

* bsc#1257235

* bsc#1261546

## References:

* https://www.suse.com/security/cve/CVE-2026-24401.html

* https://www.suse.com/security/cve/CVE-2026-34933.html

* https://bugzilla.suse.com/show_bug.cgi?id=1257235

* https://bugzilla.suse.com/show_bug.cgi?id=1261546

Severity
moderate
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2311-1
Release Date: 2026-06-09T11:05:49Z
Affected Products: * openSUSE Leap 15.4 * SUSE Linux Enterprise Micro 5.3 * SUSE Linux Enterprise Micro 5.4 * SUSE Linux Enterprise Micro 5.5 * SUSE Linux Enterprise Micro for Rancher 5.3 * SUSE Linux Enterprise Micro for Rancher 5.4

Topics%20covered

Topics Covered

security advisory moderate crash avahi OpenSUSE uncontrolled recursion

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