Security update for avahi SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2026:20525-1 Final 1 1 2026-02-26T10:54:54Z current 2026-02-26T10:54:54Z 2026-02-26T10:54:54Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for avahi This update for avahi fixes the following issues: - CVE-2024-52615: Resolve fixed source ports for wide-area DNS queries cause DNS responses be injected. (bsc#1233421) - CVE-2025-68468: Fixed DoS bug by removing incorrect assertion. (bsc#1256499) - CVE-2025-68471: Fixed DoS bug by changing assert to return. (bsc#1256500) - CVE-2025-68276: Refuse to create wide-area record browsers when wide-area is off. (bsc#1256498) The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-SLE-Micro-6.0-595 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2026/suse-su-202620525-1/ Link for SUSE-SU-2026:20525-1 https://lists.suse.com/pipermail/sle-security-updates/2026-February/024497.html E-Mail link for SUSE-SU-2026:20525-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1233421 SUSE Bug 1233421 https://bugzilla.suse.com/1256498 SUSE Bug 1256498 https://bugzilla.suse.com/1256499 SUSE Bug 1256499 https://bugzilla.suse.com/1256500 SUSE Bug 1256500 https://www.suse.com/security/cve/CVE-2024-52615/ SUSE CVE CVE-2024-52615 page https://www.suse.com/security/cve/CVE-2025-68276/ SUSE CVE CVE-2025-68276 page https://www.suse.com/security/cve/CVE-2025-68468/ SUSE CVE CVE-2025-68468 page https://www.suse.com/security/cve/CVE-2025-68471/ SUSE CVE CVE-2025-68471 page SUSE Linux Micro 6.0 avahi-0.8-7.1 libavahi-client3-0.8-7.1 libavahi-common3-0.8-7.1 libavahi-core7-0.8-7.1 avahi-0.8-7.1 as a component of SUSE Linux Micro 6.0 libavahi-client3-0.8-7.1 as a component of SUSE Linux Micro 6.0 libavahi-common3-0.8-7.1 as a component of SUSE Linux Micro 6.0 libavahi-core7-0.8-7.1 as a component of SUSE Linux Micro 6.0 A flaw was found in Avahi-daemon, which relies on fixed source ports for wide-area DNS queries. This issue simplifies attacks where malicious DNS responses are injected. CVE-2024-52615 SUSE Linux Micro 6.0:avahi-0.8-7.1 SUSE Linux Micro 6.0:libavahi-client3-0.8-7.1 SUSE Linux Micro 6.0:libavahi-common3-0.8-7.1 SUSE Linux Micro 6.0:libavahi-core7-0.8-7.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2026/suse-su-202620525-1/ https://www.suse.com/security/cve/CVE-2024-52615.html CVE-2024-52615 https://bugzilla.suse.com/1233421 SUSE Bug 1233421 Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, an unprivileged local users can crash avahi-daemon (with wide-area disabled) by creating record browsers with the AVAHI_LOOKUP_USE_WIDE_AREA flag set via D-Bus. This can be done by either calling the RecordBrowserNew method directly or creating hostname/address/service resolvers/browsers that create those browsers internally themselves. CVE-2025-68276 SUSE Linux Micro 6.0:avahi-0.8-7.1 SUSE Linux Micro 6.0:libavahi-client3-0.8-7.1 SUSE Linux Micro 6.0:libavahi-common3-0.8-7.1 SUSE Linux Micro 6.0:libavahi-core7-0.8-7.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2026/suse-su-202620525-1/ https://www.suse.com/security/cve/CVE-2025-68276.html CVE-2025-68276 https://bugzilla.suse.com/1256498 SUSE Bug 1256498 Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending unsolicited announcements containing CNAME resource records pointing it to resource records with short TTLs. As soon as they expire avahi-daemon crashes. CVE-2025-68468 SUSE Linux Micro 6.0:avahi-0.8-7.1 SUSE Linux Micro 6.0:libavahi-client3-0.8-7.1 SUSE Linux Micro 6.0:libavahi-common3-0.8-7.1 SUSE Linux Micro 6.0:libavahi-core7-0.8-7.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2026/suse-su-202620525-1/ https://www.suse.com/security/cve/CVE-2025-68468.html CVE-2025-68468 https://bugzilla.suse.com/1256499 SUSE Bug 1256499 Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending 2 unsolicited announcements with CNAME resource records 2 seconds apart. CVE-2025-68471 SUSE Linux Micro 6.0:avahi-0.8-7.1 SUSE Linux Micro 6.0:libavahi-client3-0.8-7.1 SUSE Linux Micro 6.0:libavahi-common3-0.8-7.1 SUSE Linux Micro 6.0:libavahi-core7-0.8-7.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2026/suse-su-202620525-1/ https://www.suse.com/security/cve/CVE-2025-68471.html CVE-2025-68471 https://bugzilla.suse.com/1256500 SUSE Bug 1256500