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SUSE SLES15 Security Update : gnutls (SUSE-SU-2021:0934-1)

critical Nessus Plugin ID 148165

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Synopsis

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

Description

This update for gnutls fixes the following issues :

CVE-2021-20232: Fixed a use after free issue which could have led to memory corruption and other potential consequences (bsc#1183456).

CVE-2021-20231: Fixed a use after free issue which could have led to memory corruption and other potential consequences (bsc#1183457).

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 Manager Server 4.0 :

zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Server-4.0-2021-934=1

SUSE Manager Retail Branch Server 4.0 :

zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Retail-Branch-Server-4.0-2021-934=1

SUSE Manager Proxy 4.0 :

zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Proxy-4.0-2021-934=1

SUSE Linux Enterprise Server for SAP 15-SP1 :

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP1-2021-934=1

SUSE Linux Enterprise Server for SAP 15 :

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-2021-934=1

SUSE Linux Enterprise Server 15-SP1-LTSS :

zypper in -t patch SUSE-SLE-Product-SLES-15-SP1-LTSS-2021-934=1

SUSE Linux Enterprise Server 15-SP1-BCL :

zypper in -t patch SUSE-SLE-Product-SLES-15-SP1-BCL-2021-934=1

SUSE Linux Enterprise Server 15-LTSS :

zypper in -t patch SUSE-SLE-Product-SLES-15-2021-934=1

SUSE Linux Enterprise High Performance Computing 15-SP1-LTSS :

zypper in -t patch SUSE-SLE-Product-HPC-15-SP1-LTSS-2021-934=1

SUSE Linux Enterprise High Performance Computing 15-SP1-ESPOS :

zypper in -t patch SUSE-SLE-Product-HPC-15-SP1-ESPOS-2021-934=1

SUSE Linux Enterprise High Performance Computing 15-LTSS :

zypper in -t patch SUSE-SLE-Product-HPC-15-2021-934=1

SUSE Linux Enterprise High Performance Computing 15-ESPOS :

zypper in -t patch SUSE-SLE-Product-HPC-15-2021-934=1

SUSE Enterprise Storage 6 :

zypper in -t patch SUSE-Storage-6-2021-934=1

SUSE CaaS Platform 4.0 :

To install this update, use the SUSE CaaS Platform 'skuba' tool. I will inform you if it detects new updates and let you then trigger updating of the complete cluster in a controlled way.

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1183456

https://bugzilla.suse.com/show_bug.cgi?id=1183457

https://www.suse.com/security/cve/CVE-2021-20231/

https://www.suse.com/security/cve/CVE-2021-20232/

http://www.nessus.org/u?00132084

Plugin Details

Severity: Critical

ID: 148165

File Name: suse_SU-2021-0934-1.nasl

Version: 1.3

Type: local

Agent: unix

Published: 3/26/2021

Updated: 1/8/2024

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: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2021-20232

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:gnutls-debugsource, p-cpe:/a:novell:suse_linux:libgnutls30-hmac, p-cpe:/a:novell:suse_linux:libgnutls30-32bit-debuginfo, p-cpe:/a:novell:suse_linux:libgnutls30, p-cpe:/a:novell:suse_linux:libgnutlsxx-devel, p-cpe:/a:novell:suse_linux:libgnutlsxx28-debuginfo, cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:libgnutls-devel, p-cpe:/a:novell:suse_linux:gnutls-debuginfo, p-cpe:/a:novell:suse_linux:gnutls, p-cpe:/a:novell:suse_linux:libgnutlsxx28, p-cpe:/a:novell:suse_linux:libgnutls30-debuginfo

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: 3/24/2021

Vulnerability Publication Date: 3/12/2021

Reference Information

CVE: CVE-2021-20231, CVE-2021-20232