SUSE SLED15 / SLES15 Security Update : libxml2 (SUSE-SU-2021:1654-1)

high Nessus Plugin ID 149796

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Synopsis

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

Description

This update for libxml2 fixes the following issues :

CVE-2021-3537: NULL pointer dereference in valid.c:xmlValidBuildAContentModel (bsc#1185698)

CVE-2021-3518: Fixed a use after free in xinclude.c:xmlXIncludeDoProcess (bsc#1185408).

CVE-2021-3517: Fixed a heap-based buffer overflow in entities.c:xmlEncodeEntitiesInternal (bsc#1185410).

CVE-2021-3516: Fixed a use after free in entities.c:xmlEncodeEntitiesInternal (bsc#1185409).

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 MicroOS 5.0 :

zypper in -t patch SUSE-SUSE-MicroOS-5.0-2021-1654=1

SUSE Linux Enterprise Module for Python2 15-SP3 :

zypper in -t patch SUSE-SLE-Module-Python2-15-SP3-2021-1654=1

SUSE Linux Enterprise Module for Python2 15-SP2 :

zypper in -t patch SUSE-SLE-Module-Python2-15-SP2-2021-1654=1

SUSE Linux Enterprise Module for Basesystem 15-SP3 :

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP3-2021-1654=1

SUSE Linux Enterprise Module for Basesystem 15-SP2 :

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2021-1654=1

Plugin Details

Severity: High

ID: 149796

File Name: suse_SU-2021-1654-1.nasl

Version: 1.5

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 5/20/2021

Updated: 12/29/2023

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: 6.2

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

CVSS Score Source: CVE-2021-3517

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 8.2

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

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

CVSS Score Source: CVE-2021-3518

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:python2-libxml2-python, p-cpe:/a:novell:suse_linux:python3-libxml2-python, p-cpe:/a:novell:suse_linux:libxml2-tools-debuginfo, p-cpe:/a:novell:suse_linux:python-libxml2-python-debugsource, p-cpe:/a:novell:suse_linux:python2-libxml2-python-debuginfo, p-cpe:/a:novell:suse_linux:libxml2-tools, cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:libxml2-2-32bit-debuginfo, p-cpe:/a:novell:suse_linux:libxml2-debugsource, p-cpe:/a:novell:suse_linux:libxml2-devel, p-cpe:/a:novell:suse_linux:libxml2, p-cpe:/a:novell:suse_linux:python3-libxml2-python-debuginfo, p-cpe:/a:novell:suse_linux:libxml2-2, p-cpe:/a:novell:suse_linux:libxml2-2-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: 5/19/2021

Vulnerability Publication Date: 5/14/2021

Reference Information

CVE: CVE-2021-3516, CVE-2021-3517, CVE-2021-3518, CVE-2021-3537

Detections

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