Detections
Analytics

openSUSE 16: avahi / avahi-autoipd / avahi-compat-howl-devel / etc (openSUSE-SU-2026:21417-1)

medium Nessus Plugin ID 329510

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Synopsis

The remote openSUSE host is missing a security update.

Description

The remote openSUSE 16 host has packages installed that are affected by a vulnerability as referenced in the openSUSE- SU-2026:21417-1 advisory.

 - CVE-2025-59529: local DoS due to simple protocol server ignoring client limit CLIENTS_MAX (bsc#1255451).

 Changes for avahi:

 - Make /var/lib/avahi-autoipd a ghost dir instead of packaging it since avahi-autoipd creates it on start (jsc#PED-14836).
 - Use libalternative instead of update-alternatives in TW and SLFO (jsc#PED-14835).

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/1255451

https://www.suse.com/security/cve/CVE-2025-59529

Plugin Details

Severity: Medium

ID: 329510

File Name: openSUSE-2026-21417-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 7/25/2026

Updated: 7/25/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.74

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-2025-59529

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:opensuse:16.0, p-cpe:/a:novell:opensuse:avahi-autoipd, p-cpe:/a:novell:opensuse:avahi-compat-howl-devel, p-cpe:/a:novell:opensuse:avahi-compat-mdnsresponder-devel, p-cpe:/a:novell:opensuse:avahi-lang, p-cpe:/a:novell:opensuse:avahi-utils-gtk, p-cpe:/a:novell:opensuse:avahi-utils, p-cpe:/a:novell:opensuse:avahi, p-cpe:/a:novell:opensuse:libavahi-client3, p-cpe:/a:novell:opensuse:libavahi-common3, p-cpe:/a:novell:opensuse:libavahi-core7, p-cpe:/a:novell:opensuse:libavahi-devel, p-cpe:/a:novell:opensuse:libavahi-glib-devel, p-cpe:/a:novell:opensuse:libavahi-glib1, p-cpe:/a:novell:opensuse:libavahi-gobject-devel, p-cpe:/a:novell:opensuse:libavahi-gobject0, p-cpe:/a:novell:opensuse:libavahi-libevent1, p-cpe:/a:novell:opensuse:libavahi-qt6-1, p-cpe:/a:novell:opensuse:libavahi-qt6-devel, p-cpe:/a:novell:opensuse:libavahi-ui-gtk3-0, p-cpe:/a:novell:opensuse:libdns_sd, p-cpe:/a:novell:opensuse:libhowl0, p-cpe:/a:novell:opensuse:python3-avahi-gtk, p-cpe:/a:novell:opensuse:python313-avahi, p-cpe:/a:novell:opensuse:typelib-1_0-avahi-0_6

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: 7/22/2026

Vulnerability Publication Date: 12/18/2025

Reference Information

CVE: CVE-2025-59529