openSUSE avahi Moderate Security Issue Crash Advisory 2026-2311-1
suse
June 9, 2026
An update that solves two vulnerabilities can now be installed.
Summary
## 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). ## 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
Topics Covered
References
* bsc#1257235
* bsc#1261546
Cross-
* CVE-2026-24401
* CVE-2026-34933
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
* CVE-2026-34933 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-34933 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/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 two vulnerabilities can now be installed.
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Announcement ID: SUSE-SU-2026:2311-1
Release Date: 2026-06-09T11:05:49Z
Rating: moderate
Topics Covered
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