SUSE SLED15 / SLES15 Security Update : dnsmasq (SUSE-SU-2021:0163-1)

high Nessus Plugin ID 145108

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Synopsis

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

Description

This update for dnsmasq fixes the following issues :

bsc#1177077: Fixed DNSpooq vulnerabilities

CVE-2020-25684, CVE-2020-25685, CVE-2020-25686: Fixed multiple Cache Poisoning attacks.

CVE-2020-25681, CVE-2020-25682, CVE-2020-25683, CVE-2020-25687: Fixed multiple potential Heap-based overflows when DNSSEC is enabled.

Retry query to other servers on receipt of SERVFAIL rcode (bsc#1176076)

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 Module for Basesystem 15-SP2 :

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2021-163=1

SUSE Linux Enterprise Module for Basesystem 15-SP1 :

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP1-2021-163=1

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1176076

https://bugzilla.suse.com/show_bug.cgi?id=1177077

https://www.suse.com/security/cve/CVE-2020-25681/

https://www.suse.com/security/cve/CVE-2020-25682/

https://www.suse.com/security/cve/CVE-2020-25683/

https://www.suse.com/security/cve/CVE-2020-25684/

https://www.suse.com/security/cve/CVE-2020-25685/

https://www.suse.com/security/cve/CVE-2020-25686/

https://www.suse.com/security/cve/CVE-2020-25687/

http://www.nessus.org/u?f0170268

Plugin Details

Severity: High

ID: 145108

File Name: suse_SU-2021-0163-1.nasl

Version: 1.4

Type: local

Agent: unix

Published: 1/20/2021

Updated: 2/1/2021

Supported Sensors: Nessus Agent

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.1

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:C

Temporal Vector: E:U/RL:OF/RC:C

CVSS Score Source: CVE-2020-25682

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:dnsmasq, p-cpe:/a:novell:suse_linux:dnsmasq-debuginfo, p-cpe:/a:novell:suse_linux:dnsmasq-debugsource, cpe:/o:novell:suse_linux:15

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: 1/19/2021

Vulnerability Publication Date: 1/20/2021

Reference Information

CVE: CVE-2020-25681, CVE-2020-25682, CVE-2020-25683, CVE-2020-25684, CVE-2020-25685, CVE-2020-25686, CVE-2020-25687