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SUSE SLES15 Security Update : avahi (SUSE-SU-2021:1493-2)

medium Nessus Plugin ID 150306

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Synopsis

The remote SUSE host is missing a security update.

Description

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2021:1493-2 advisory.

 - A flaw was found in avahi in versions 0.6 up to 0.8. The event used to signal the termination of the client connection on the avahi Unix socket is not correctly handled in the client_work function, allowing a local attacker to trigger an infinite loop. The highest threat from this vulnerability is to the availability of the avahi service, which becomes unresponsive after this flaw is triggered.
 (CVE-2021-3468)

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/1184521

https://www.suse.com/security/cve/CVE-2021-3468

http://www.nessus.org/u?119c618e

Plugin Details

Severity: Medium

ID: 150306

File Name: suse_SU-2021-1493-2.nasl

Version: 1.6

Type: local

Agent: unix

Published: 6/7/2021

Updated: 7/13/2023

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2021-3468

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:libavahi-core7, p-cpe:/a:novell:suse_linux:libavahi-common3-32bit, p-cpe:/a:novell:suse_linux:libdns_sd, p-cpe:/a:novell:suse_linux:libavahi-gobject0, p-cpe:/a:novell:suse_linux:libavahi-gobject-devel, p-cpe:/a:novell:suse_linux:libavahi-glib-devel, p-cpe:/a:novell:suse_linux:avahi-utils-gtk, p-cpe:/a:novell:suse_linux:avahi-autoipd, p-cpe:/a:novell:suse_linux:avahi-compat-howl-devel, p-cpe:/a:novell:suse_linux:avahi-lang, p-cpe:/a:novell:suse_linux:typelib-1_0-avahi-0_6, p-cpe:/a:novell:suse_linux:libavahi-glib1, p-cpe:/a:novell:suse_linux:avahi, p-cpe:/a:novell:suse_linux:libhowl0, p-cpe:/a:novell:suse_linux:avahi-compat-mdnsresponder-devel, p-cpe:/a:novell:suse_linux:libavahi-ui-gtk3-0, p-cpe:/a:novell:suse_linux:libavahi-common3, cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:libavahi-ui0, p-cpe:/a:novell:suse_linux:libavahi-client3-32bit, p-cpe:/a:novell:suse_linux:libavahi-client3, p-cpe:/a:novell:suse_linux:libavahi-devel, p-cpe:/a:novell:suse_linux:avahi-utils

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/4/2021

Vulnerability Publication Date: 6/2/2021

Reference Information

CVE: CVE-2021-3468

SuSE: SUSE-SU-2021:1493-2