Security update for avahi

Announcement ID:	SUSE-SU-2026:0577-1
Release Date:	2026-02-18T15:49:25Z
Rating:	moderate
References:	bsc#1256498 bsc#1256499 bsc#1256500
Cross-References:	CVE-2025-68276 CVE-2025-68468 CVE-2025-68471
CVSS scores:	CVE-2025-68276 ( 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-2025-68276 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2025-68276 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2025-68468 ( SUSE ): 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2025-68468 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVE-2025-68468 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVE-2025-68471 ( SUSE ): 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2025-68471 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVE-2025-68471 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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

An update that solves three vulnerabilities can now be installed.

Description:

This update for avahi fixes the following issues:

• CVE-2025-68276: Fixed refuse to create wide-area record browsers when wide-area is off (bsc#1256498)
• CVE-2025-68471: Fixed DoS bug by changing assert to return (bsc#1256500)
• CVE-2025-68468: Fixed DoS bug by removing incorrect assertion (bsc#1256499)

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 for Rancher 5.4
  zypper in -t patch SUSE-SLE-Micro-5.4-2026-577=1
• SUSE Linux Enterprise Micro 5.4
  zypper in -t patch SUSE-SLE-Micro-5.4-2026-577=1
• SUSE Linux Enterprise Micro 5.5
  zypper in -t patch SUSE-SLE-Micro-5.5-2026-577=1
• openSUSE Leap 15.4
  zypper in -t patch SUSE-2026-577=1
• SUSE Linux Enterprise Micro for Rancher 5.3
  zypper in -t patch SUSE-SLE-Micro-5.3-2026-577=1
• SUSE Linux Enterprise Micro 5.3
  zypper in -t patch SUSE-SLE-Micro-5.3-2026-577=1

Package List:

• SUSE Linux Enterprise Micro for Rancher 5.4 (aarch64 s390x x86_64)
  • libavahi-common3-debuginfo-0.8-150400.7.26.1
  • libavahi-core7-0.8-150400.7.26.1
  • libavahi-core7-debuginfo-0.8-150400.7.26.1
  • libavahi-client3-debuginfo-0.8-150400.7.26.1
  • avahi-debugsource-0.8-150400.7.26.1
  • libavahi-common3-0.8-150400.7.26.1
  • libavahi-client3-0.8-150400.7.26.1
  • avahi-0.8-150400.7.26.1
  • avahi-debuginfo-0.8-150400.7.26.1
• SUSE Linux Enterprise Micro 5.4 (aarch64 s390x x86_64)
  • libavahi-common3-debuginfo-0.8-150400.7.26.1
  • libavahi-core7-0.8-150400.7.26.1
  • libavahi-core7-debuginfo-0.8-150400.7.26.1
  • libavahi-client3-debuginfo-0.8-150400.7.26.1
  • avahi-debugsource-0.8-150400.7.26.1
  • libavahi-common3-0.8-150400.7.26.1
  • libavahi-client3-0.8-150400.7.26.1
  • avahi-0.8-150400.7.26.1
  • avahi-debuginfo-0.8-150400.7.26.1
• SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64)
  • libavahi-common3-debuginfo-0.8-150400.7.26.1
  • libavahi-core7-0.8-150400.7.26.1
  • libavahi-core7-debuginfo-0.8-150400.7.26.1
  • libavahi-client3-debuginfo-0.8-150400.7.26.1
  • avahi-debugsource-0.8-150400.7.26.1
  • libavahi-common3-0.8-150400.7.26.1
  • libavahi-client3-0.8-150400.7.26.1
  • avahi-0.8-150400.7.26.1
  • avahi-debuginfo-0.8-150400.7.26.1
• openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64 i586)
  • libhowl0-0.8-150400.7.26.1
  • libavahi-core7-0.8-150400.7.26.1
  • libavahi-core7-debuginfo-0.8-150400.7.26.1
  • libavahi-gobject0-0.8-150400.7.26.1
  • python3-avahi-gtk-0.8-150400.7.26.1
  • libdns_sd-debuginfo-0.8-150400.7.26.1
  • libavahi-qt5-devel-0.8-150400.7.26.1
  • libavahi-libevent1-debuginfo-0.8-150400.7.26.1
  • libavahi-ui-gtk3-0-0.8-150400.7.26.1
  • avahi-compat-howl-devel-0.8-150400.7.26.1
  • libavahi-client3-0.8-150400.7.26.1
  • avahi-autoipd-0.8-150400.7.26.1
  • libavahi-common3-debuginfo-0.8-150400.7.26.1
  • python3-avahi-0.8-150400.7.26.1
  • libavahi-qt5-1-0.8-150400.7.26.1
  • avahi-debugsource-0.8-150400.7.26.1
  • libdns_sd-0.8-150400.7.26.1
  • libavahi-gobject0-debuginfo-0.8-150400.7.26.1
  • avahi-autoipd-debuginfo-0.8-150400.7.26.1
  • libhowl0-debuginfo-0.8-150400.7.26.1
  • avahi-0.8-150400.7.26.1
  • avahi-debuginfo-0.8-150400.7.26.1
  • typelib-1_0-Avahi-0_6-0.8-150400.7.26.1
  • libavahi-devel-0.8-150400.7.26.1
  • libavahi-qt5-1-debuginfo-0.8-150400.7.26.1
  • avahi-glib2-debugsource-0.8-150400.7.26.1
  • libavahi-glib1-debuginfo-0.8-150400.7.26.1
  • avahi-utils-gtk-0.8-150400.7.26.1
  • avahi-utils-debuginfo-0.8-150400.7.26.1
  • avahi-qt5-debugsource-0.8-150400.7.26.1
  • avahi-utils-0.8-150400.7.26.1
  • libavahi-glib-devel-0.8-150400.7.26.1
  • libavahi-ui-gtk3-0-debuginfo-0.8-150400.7.26.1
  • avahi-compat-mDNSResponder-devel-0.8-150400.7.26.1
  • libavahi-client3-debuginfo-0.8-150400.7.26.1
  • avahi-utils-gtk-debuginfo-0.8-150400.7.26.1
  • libavahi-gobject-devel-0.8-150400.7.26.1
  • libavahi-common3-0.8-150400.7.26.1
  • libavahi-libevent1-0.8-150400.7.26.1
  • libavahi-glib1-0.8-150400.7.26.1
• openSUSE Leap 15.4 (x86_64)
  • libavahi-glib1-32bit-debuginfo-0.8-150400.7.26.1
  • libdns_sd-32bit-debuginfo-0.8-150400.7.26.1
  • libavahi-glib1-32bit-0.8-150400.7.26.1
  • libdns_sd-32bit-0.8-150400.7.26.1
  • libavahi-common3-32bit-0.8-150400.7.26.1
  • libavahi-common3-32bit-debuginfo-0.8-150400.7.26.1
  • avahi-32bit-debuginfo-0.8-150400.7.26.1
  • libavahi-client3-32bit-0.8-150400.7.26.1
  • libavahi-client3-32bit-debuginfo-0.8-150400.7.26.1
• openSUSE Leap 15.4 (noarch)
  • avahi-lang-0.8-150400.7.26.1
• openSUSE Leap 15.4 (aarch64_ilp32)
  • libavahi-client3-64bit-debuginfo-0.8-150400.7.26.1
  • libavahi-client3-64bit-0.8-150400.7.26.1
  • avahi-64bit-debuginfo-0.8-150400.7.26.1
  • libdns_sd-64bit-0.8-150400.7.26.1
  • libavahi-glib1-64bit-debuginfo-0.8-150400.7.26.1
  • libavahi-common3-64bit-0.8-150400.7.26.1
  • libavahi-common3-64bit-debuginfo-0.8-150400.7.26.1
  • libavahi-glib1-64bit-0.8-150400.7.26.1
  • libdns_sd-64bit-debuginfo-0.8-150400.7.26.1
• SUSE Linux Enterprise Micro for Rancher 5.3 (aarch64 s390x x86_64)
  • libavahi-common3-debuginfo-0.8-150400.7.26.1
  • libavahi-core7-0.8-150400.7.26.1
  • libavahi-core7-debuginfo-0.8-150400.7.26.1
  • libavahi-client3-debuginfo-0.8-150400.7.26.1
  • avahi-debugsource-0.8-150400.7.26.1
  • libavahi-common3-0.8-150400.7.26.1
  • libavahi-client3-0.8-150400.7.26.1
  • avahi-0.8-150400.7.26.1
  • avahi-debuginfo-0.8-150400.7.26.1
• SUSE Linux Enterprise Micro 5.3 (aarch64 s390x x86_64)
  • libavahi-common3-debuginfo-0.8-150400.7.26.1
  • libavahi-core7-0.8-150400.7.26.1
  • libavahi-core7-debuginfo-0.8-150400.7.26.1
  • libavahi-client3-debuginfo-0.8-150400.7.26.1
  • avahi-debugsource-0.8-150400.7.26.1
  • libavahi-common3-0.8-150400.7.26.1
  • libavahi-client3-0.8-150400.7.26.1
  • avahi-0.8-150400.7.26.1
  • avahi-debuginfo-0.8-150400.7.26.1

References:

• https://www.suse.com/security/cve/CVE-2025-68276.html
• https://www.suse.com/security/cve/CVE-2025-68468.html
• https://www.suse.com/security/cve/CVE-2025-68471.html
• https://bugzilla.suse.com/show_bug.cgi?id=1256498
• https://bugzilla.suse.com/show_bug.cgi?id=1256499
• https://bugzilla.suse.com/show_bug.cgi?id=1256500