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SUSE SLES12 Security Update : avahi (SUSE-SU-2026:2296-1)

medium Nessus Plugin ID 321024

Synopsis

The remote SUSE host is missing a security update.

Description

The remote SUSE Linux SLES12 host has packages installed that are affected by a vulnerability as referenced in the SUSE- SU-2026:2296-1 advisory.

 This update for avahi fixes the following issue:

 - CVE-2026-34933: reachable assertion in `transport_flags_from_domain` can crash the `avahi-daemon` (bsc#1261546).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://bugzilla.suse.com/1261546

https://lists.suse.com/pipermail/sle-updates/2026-June/047130.html

https://www.suse.com/security/cve/CVE-2026-34933

Plugin Details

Severity: Medium

ID: 321024

File Name: suse_SU-2026-2296-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 6/14/2026

Updated: 6/14/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.6

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

CVSS Score Source: CVE-2026-34933

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:libdns_sd-32bit, p-cpe:/a:novell:suse_linux:libavahi-core7, p-cpe:/a:novell:suse_linux:libavahi-common3-32bit, p-cpe:/a:novell:suse_linux:libavahi-client3-32bit, p-cpe:/a:novell:suse_linux:avahi, p-cpe:/a:novell:suse_linux:libdns_sd, p-cpe:/a:novell:suse_linux:libavahi-client3, p-cpe:/a:novell:suse_linux:libavahi-devel, p-cpe:/a:novell:suse_linux:avahi-lang, p-cpe:/a:novell:suse_linux:avahi-compat-howl-devel, p-cpe:/a:novell:suse_linux:avahi-utils, p-cpe:/a:novell:suse_linux:avahi-compat-mdnsresponder-devel, p-cpe:/a:novell:suse_linux:libavahi-common3

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/8/2026

Vulnerability Publication Date: 4/3/2026

Reference Information

CVE: CVE-2026-34933

SuSE: SUSE-SU-2026:2296-1