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Debian dla-3466 : avahi-autoipd - security update

medium Nessus Plugin ID 177492

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Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dla-3466 advisory.

 - ------------------------------------------------------------------------- Debian LTS Advisory DLA-3466-1 [email protected] https://www.debian.org/lts/security/ Bastien Roucaris June 21, 2023 https://wiki.debian.org/LTS
 - -------------------------------------------------------------------------

 Package : avahi Version : 0.7-4+deb10u3 CVE ID : CVE-2021-3468 Debian Bug : 984938

 Avahi a free zero-configuration networking (zeroconf) implementation, including a system for multicast DNS/DNS-SD service discovery, was affected by a Deny of Service. 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.

 For Debian 10 buster, this problem has been fixed in version 0.7-4+deb10u3.

 We recommend that you upgrade your avahi packages.

 For the detailed security status of avahi please refer to its security tracker page at:
 https://security-tracker.debian.org/tracker/avahi

 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian 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

Upgrade the avahi-autoipd packages.

See Also

https://security-tracker.debian.org/tracker/source-package/avahi

https://security-tracker.debian.org/tracker/CVE-2021-3468

https://packages.debian.org/source/buster/avahi

Plugin Details

Severity: Medium

ID: 177492

File Name: debian_DLA-3466.nasl

Version: 1.1

Type: local

Agent: unix

Published: 6/22/2023

Updated: 1/22/2025

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, 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:debian:debian_linux:libavahi-gobject-dev, p-cpe:/a:debian:debian_linux:libavahi-glib1, p-cpe:/a:debian:debian_linux:libavahi-client-dev, p-cpe:/a:debian:debian_linux:avahi-discover, p-cpe:/a:debian:debian_linux:libavahi-ui-gtk3-dev, p-cpe:/a:debian:debian_linux:avahi-daemon, p-cpe:/a:debian:debian_linux:libavahi-client3, cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:libavahi-core-dev, p-cpe:/a:debian:debian_linux:libavahi-glib-dev, p-cpe:/a:debian:debian_linux:libavahi-ui-gtk3-0, p-cpe:/a:debian:debian_linux:python-avahi, p-cpe:/a:debian:debian_linux:gir1.2-avahi-0.6, p-cpe:/a:debian:debian_linux:avahi-dnsconfd, p-cpe:/a:debian:debian_linux:libavahi-common3, p-cpe:/a:debian:debian_linux:libavahi-compat-libdnssd-dev, p-cpe:/a:debian:debian_linux:libavahi-core7, p-cpe:/a:debian:debian_linux:avahi-autoipd, p-cpe:/a:debian:debian_linux:libavahi-compat-libdnssd1, p-cpe:/a:debian:debian_linux:avahi-ui-utils, p-cpe:/a:debian:debian_linux:libavahi-gobject0, p-cpe:/a:debian:debian_linux:libavahi-common-data, p-cpe:/a:debian:debian_linux:avahi-utils, p-cpe:/a:debian:debian_linux:libavahi-common-dev

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 6/21/2023

Vulnerability Publication Date: 6/2/2021

Reference Information

CVE: CVE-2021-3468