SUSE SLES15 Security Update : openssl-1_0_0 (SUSE-SU-2021:0769-1)

high Nessus Plugin ID 147736
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

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

Description

This update for openssl-1_0_0 fixes the following issues :

CVE-2021-23840: Fixed an Integer overflow in CipherUpdate (bsc#1182333)

CVE-2021-23841: Fixed a NULL pointer dereference in X509_issuer_and_serial_hash() (bsc#1182331)

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-4.0-2021-769=1

SUSE Manager Retail Branch Server 4.0 :

zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Retail-Branch-Server-4.0-2021-769=1

SUSE Manager Proxy 4.0 :

zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Proxy-4.0-2021-769=1

SUSE Linux Enterprise Server for SAP 15-SP1 :

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP1-2021-769=1

SUSE Linux Enterprise Server for SAP 15 :

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-2021-769=1

SUSE Linux Enterprise Server 15-SP1-LTSS :

zypper in -t patch SUSE-SLE-Product-SLES-15-SP1-LTSS-2021-769=1

SUSE Linux Enterprise Server 15-SP1-BCL :

zypper in -t patch SUSE-SLE-Product-SLES-15-SP1-BCL-2021-769=1

SUSE Linux Enterprise Server 15-LTSS :

zypper in -t patch SUSE-SLE-Product-SLES-15-2021-769=1

SUSE Linux Enterprise Module for Legacy Software 15-SP3 :

zypper in -t patch SUSE-SLE-Module-Legacy-15-SP3-2021-769=1

SUSE Linux Enterprise Module for Legacy Software 15-SP2 :

zypper in -t patch SUSE-SLE-Module-Legacy-15-SP2-2021-769=1

SUSE Enterprise Storage 6 :

zypper in -t patch SUSE-Storage-6-2021-769=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=1182331

https://bugzilla.suse.com/show_bug.cgi?id=1182333

https://www.suse.com/security/cve/CVE-2021-23840/

https://www.suse.com/security/cve/CVE-2021-23841/

http://www.nessus.org/u?de02b503

Plugin Details

Severity: High

ID: 147736

File Name: suse_SU-2021-0769-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 3/12/2021

Updated: 3/16/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

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

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:libopenssl-1_0_0-devel, p-cpe:/a:novell:suse_linux:libopenssl10, p-cpe:/a:novell:suse_linux:libopenssl10-debuginfo, p-cpe:/a:novell:suse_linux:libopenssl1_0_0, p-cpe:/a:novell:suse_linux:libopenssl1_0_0-debuginfo, p-cpe:/a:novell:suse_linux:openssl, p-cpe:/a:novell:suse_linux:openssl-1_0_0-debuginfo, p-cpe:/a:novell:suse_linux:openssl-1_0_0-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: 3/11/2021

Vulnerability Publication Date: 2/16/2021

Reference Information

CVE: CVE-2021-23840, CVE-2021-23841