Security update for avahi

Announcement ID: SUSE-SU-2026:1442-1
Release Date: 2026-04-17T14:19:07Z
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2026-24401 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  • CVE-2026-24401 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  • CVE-2026-24401 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected Products:
  • SUSE Linux Enterprise Server 12 SP5
  • SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
  • SUSE Linux Enterprise Server for SAP Applications 12 SP5

An update that solves one vulnerability can now be installed.

Description:

This update for avahi fixes the following issue:

  • CVE-2026-24401: avahi-daemon can be crashed via a segmentation fault by sending an unsolicited mDNS response containing a recursive CNAME record (bsc#1257235).

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 Server 12 SP5 LTSS Extended Security
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-1442=1

Package List:

  • SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    • libavahi-common3-32bit-0.6.32-32.39.1
    • avahi-utils-0.6.32-32.39.1
    • libavahi-client3-debuginfo-32bit-0.6.32-32.39.1
    • avahi-0.6.32-32.39.1
    • avahi-debugsource-0.6.32-32.39.1
    • avahi-compat-mDNSResponder-devel-0.6.32-32.39.1
    • libavahi-common3-debuginfo-32bit-0.6.32-32.39.1
    • avahi-compat-howl-devel-0.6.32-32.39.1
    • libavahi-client3-0.6.32-32.39.1
    • libavahi-common3-0.6.32-32.39.1
    • libdns_sd-debuginfo-0.6.32-32.39.1
    • libavahi-common3-debuginfo-0.6.32-32.39.1
    • libavahi-core7-0.6.32-32.39.1
    • libdns_sd-debuginfo-32bit-0.6.32-32.39.1
    • avahi-debuginfo-0.6.32-32.39.1
    • avahi-debuginfo-32bit-0.6.32-32.39.1
    • libavahi-devel-0.6.32-32.39.1
    • libavahi-client3-debuginfo-0.6.32-32.39.1
    • libavahi-core7-debuginfo-0.6.32-32.39.1
    • libdns_sd-0.6.32-32.39.1
    • libdns_sd-32bit-0.6.32-32.39.1
    • avahi-utils-debuginfo-0.6.32-32.39.1
    • libavahi-client3-32bit-0.6.32-32.39.1
  • SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (noarch)
    • avahi-lang-0.6.32-32.39.1

References: