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SUSE SLES12 Security Update : avahi (SUSE-SU-2021:0563-1)

high Nessus Plugin ID 146797

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Synopsis

The remote SUSE host is missing one or more security updates.

Description

This update for avahi fixes the following issues :

CVE-2021-26720: drop privileges when invoking avahi-daemon-check-dns.sh (bsc#1180827)

Add sudo to requires: used to drop privileges.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Workstation Extension 12-SP5 :

zypper in -t patch SUSE-SLE-WE-12-SP5-2021-563=1

SUSE Linux Enterprise Software Development Kit 12-SP5 :

zypper in -t patch SUSE-SLE-SDK-12-SP5-2021-563=1

SUSE Linux Enterprise Server 12-SP5 :

zypper in -t patch SUSE-SLE-SERVER-12-SP5-2021-563=1

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1180827

https://www.suse.com/security/cve/CVE-2021-26720/

http://www.nessus.org/u?1b7c4425

Plugin Details

Severity: High

ID: 146797

File Name: suse_SU-2021-0563-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2/24/2021

Updated: 3/1/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2021-26720

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:avahi-glib2-debugsource, p-cpe:/a:novell:suse_linux:libavahi-core7-debuginfo, p-cpe:/a:novell:suse_linux:libavahi-core7, p-cpe:/a:novell:suse_linux:libdns_sd, p-cpe:/a:novell:suse_linux:libavahi-glib1, p-cpe:/a:novell:suse_linux:avahi, p-cpe:/a:novell:suse_linux:avahi-debuginfo, p-cpe:/a:novell:suse_linux:libavahi-common3-debuginfo, p-cpe:/a:novell:suse_linux:libavahi-client3, p-cpe:/a:novell:suse_linux:libdns_sd-debuginfo, p-cpe:/a:novell:suse_linux:libavahi-client3-debuginfo, p-cpe:/a:novell:suse_linux:avahi-utils-debuginfo, p-cpe:/a:novell:suse_linux:libavahi-glib1-debuginfo, p-cpe:/a:novell:suse_linux:libavahi-common3, p-cpe:/a:novell:suse_linux:avahi-utils, p-cpe:/a:novell:suse_linux:avahi-debugsource

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: 2/23/2021

Vulnerability Publication Date: 2/17/2021

Reference Information

CVE: CVE-2021-26720