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SUSE Linux Micro 6.1 Avahi Moderate DoS Threat SUSE-SU-2026-21445-1

suse
Calendar Grey May 4, 2026
Dist Suse Esm H88
An important update for SUSE addresses multiple vulnerabilities in Avahi. Upgrade now to ensure system stability and security.
An update that solves three vulnerabilities can now be installed.

Summary

## This update for avahi fixes the following issues: * CVE-2025-68276: reachable assertion in `avahi_wide_area_scan_cache` can lead to an `avahi-daemon` crash (bsc#1256498). * CVE-2025-68468: reachable assertion in `lookup_multicast_callback` can lead to an `avahi-daemon` crash (bsc#1256499). * CVE-2025-68471: reachable assertion in `lookup_start` can lead to an `avahi- daemon` crash (bsc#1256500). ## 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 Micro 6.1 zypper in -t patch SUSE-SLE-Micro-6.1-509=1 ## Package List: * SUSE Linux Micro 6.1 (aarch64 ppc64le s390x x86_64) * libavahi-common3-0.8-slfo.1.1_6.1 * avahi-0.8-slfo.1.1_6.1

Topics%20covered

Topics Covered

security advisory moderate denial of service SuSE crash avahi

References

* bsc#1256498

* bsc#1256499

* bsc#1256500

Cross-

* 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

Announcement ID: SUSE-SU-2026:21445-1
Release Date: 2026-04-27T12:27:43Z
Rating: moderate

Topics%20covered

Topics Covered

security advisory moderate denial of service SuSE crash avahi

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