SUSE SLED12 / SLES12 Security Update : libxml2 (SUSE-SU-2018:3081-1)

Medium Nessus Plugin ID 118032

Synopsis

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

Description

This update for libxml2 fixes the following security issues :

CVE-2018-9251: The xz_decomp function allowed remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint (bsc#1088279).

CVE-2018-14567: Prevent denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint (bsc#1105166).

CVE-2018-14404: Prevent NULL pointer dereference in the xmlXPathCompOpEval() function when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case leading to a denial of service attack (bsc#1102046).

CVE-2017-18258: The xz_head function allowed remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality did not restrict memory usage to what is required for a legitimate file (bsc#1088601).

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 Software Development Kit 12-SP3:zypper in -t patch SUSE-SLE-SDK-12-SP3-2018-2181=1

SUSE Linux Enterprise Server 12-SP3:zypper in -t patch SUSE-SLE-SERVER-12-SP3-2018-2181=1

SUSE Linux Enterprise Desktop 12-SP3:zypper in -t patch SUSE-SLE-DESKTOP-12-SP3-2018-2181=1

SUSE CaaS Platform ALL :

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

SUSE CaaS Platform 3.0 :

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

OpenStack Cloud Magnum Orchestration 7:zypper in -t patch SUSE-OpenStack-Cloud-Magnum-Orchestration-7-2018-2181=1

See Also

https://bugzilla.suse.com/1088279

https://bugzilla.suse.com/1088601

https://bugzilla.suse.com/1102046

https://bugzilla.suse.com/1105166

https://www.suse.com/security/cve/CVE-2017-18258.html

https://www.suse.com/security/cve/CVE-2018-14404.html

https://www.suse.com/security/cve/CVE-2018-14567.html

https://www.suse.com/security/cve/CVE-2018-9251.html

http://www.nessus.org/u?cf50ced0

Plugin Details

Severity: Medium

ID: 118032

File Name: suse_SU-2018-3081-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 2018/10/10

Modified: 2018/10/10

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 5

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

CVSSv3

Base Score: 7.5

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:libxml2, p-cpe:/a:novell:suse_linux:libxml2-2, p-cpe:/a:novell:suse_linux:libxml2-2-debuginfo, p-cpe:/a:novell:suse_linux:libxml2-debugsource, p-cpe:/a:novell:suse_linux:libxml2-tools, p-cpe:/a:novell:suse_linux:libxml2-tools-debuginfo, p-cpe:/a:novell:suse_linux:python-libxml2, p-cpe:/a:novell:suse_linux:python-libxml2-debuginfo, p-cpe:/a:novell:suse_linux:python-libxml2-debugsource, cpe:/o:novell:suse_linux:12

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Patch Publication Date: 2018/10/09

Reference Information

CVE: CVE-2017-18258, CVE-2018-14404, CVE-2018-14567, CVE-2018-9251