SUSE SLED12 / SLES12 Security Update : X Window System client libraries (SUSE-SU-2016:2505-1)

critical Nessus Plugin ID 94036
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 the X Window System client libraries fixes a class of privilege escalation issues. A malicious X Server could send specially crafted data to X clients, which allowed for triggering crashes, or privilege escalation if this relationship was untrusted or crossed user or permission level boundaries. libX11, libXfixes, libXi, libXrandr, libXrender, libXtst, libXv, libXvMC were fixed, specifically: libX11 :

- CVE-2016-7942: insufficient validation of data from the X server allowed out of boundary memory read (bsc#1002991) libXfixes :

- CVE-2016-7944: insufficient validation of data from the X server can cause an integer overflow on 32 bit architectures (bsc#1002995) libXi :

- CVE-2016-7945, CVE-2016-7946: insufficient validation of data from the X server can cause out of boundary memory access or endless loops (Denial of Service) (bsc#1002998) libXtst :

- CVE-2016-7951, CVE-2016-7952: insufficient validation of data from the X server can cause out of boundary memory access or endless loops (Denial of Service) (bsc#1003012) libXv :

- CVE-2016-5407: insufficient validation of data from the X server can cause out of boundary memory and memory corruption (bsc#1003017) libXvMC :

- CVE-2016-7953: insufficient validation of data from the X server can cause a one byte buffer read underrun (bsc#1003023) libXrender :

- CVE-2016-7949, CVE-2016-7950: insufficient validation of data from the X server can cause out of boundary memory writes (bsc#1003002) libXrandr :

- CVE-2016-7947, CVE-2016-7948: insufficient validation of data from the X server can cause out of boundary memory writes (bsc#1003000)

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 YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Software Development Kit 12-SP1:zypper in -t patch SUSE-SLE-SDK-12-SP1-2016-1464=1

SUSE Linux Enterprise Server 12-SP1:zypper in -t patch SUSE-SLE-SERVER-12-SP1-2016-1464=1

SUSE Linux Enterprise Desktop 12-SP1:zypper in -t patch SUSE-SLE-DESKTOP-12-SP1-2016-1464=1

To bring your system up-to-date, use 'zypper patch'.

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1002991

https://bugzilla.suse.com/show_bug.cgi?id=1002995

https://bugzilla.suse.com/show_bug.cgi?id=1002998

https://bugzilla.suse.com/show_bug.cgi?id=1003000

https://bugzilla.suse.com/show_bug.cgi?id=1003002

https://bugzilla.suse.com/show_bug.cgi?id=1003012

https://bugzilla.suse.com/show_bug.cgi?id=1003017

https://bugzilla.suse.com/show_bug.cgi?id=1003023

https://www.suse.com/security/cve/CVE-2016-5407/

https://www.suse.com/security/cve/CVE-2016-7942/

https://www.suse.com/security/cve/CVE-2016-7944/

https://www.suse.com/security/cve/CVE-2016-7945/

https://www.suse.com/security/cve/CVE-2016-7946/

https://www.suse.com/security/cve/CVE-2016-7947/

https://www.suse.com/security/cve/CVE-2016-7948/

https://www.suse.com/security/cve/CVE-2016-7949/

https://www.suse.com/security/cve/CVE-2016-7950/

https://www.suse.com/security/cve/CVE-2016-7951/

https://www.suse.com/security/cve/CVE-2016-7952/

https://www.suse.com/security/cve/CVE-2016-7953/

http://www.nessus.org/u?4059a3b8

Plugin Details

Severity: Critical

ID: 94036

File Name: suse_SU-2016-2505-1.nasl

Version: 2.9

Type: local

Agent: unix

Published: 10/13/2016

Updated: 1/6/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

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

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/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:libX11, p-cpe:/a:novell:suse_linux:libX11-6, p-cpe:/a:novell:suse_linux:libX11-6-debuginfo, p-cpe:/a:novell:suse_linux:libX11-debugsource, p-cpe:/a:novell:suse_linux:libX11-xcb1, p-cpe:/a:novell:suse_linux:libX11-xcb1-debuginfo, p-cpe:/a:novell:suse_linux:libXfixes-debugsource, p-cpe:/a:novell:suse_linux:libXfixes3, p-cpe:/a:novell:suse_linux:libXfixes3-debuginfo, p-cpe:/a:novell:suse_linux:libXi-debugsource, p-cpe:/a:novell:suse_linux:libXi6, p-cpe:/a:novell:suse_linux:libXi6-debuginfo, p-cpe:/a:novell:suse_linux:libXrandr-debugsource, p-cpe:/a:novell:suse_linux:libXrandr2, p-cpe:/a:novell:suse_linux:libXrandr2-debuginfo, p-cpe:/a:novell:suse_linux:libXrender-debugsource, p-cpe:/a:novell:suse_linux:libXrender1, p-cpe:/a:novell:suse_linux:libXrender1-debuginfo, p-cpe:/a:novell:suse_linux:libXtst-debugsource, p-cpe:/a:novell:suse_linux:libXtst6, p-cpe:/a:novell:suse_linux:libXtst6-debuginfo, p-cpe:/a:novell:suse_linux:libXv-debugsource, p-cpe:/a:novell:suse_linux:libXv1, p-cpe:/a:novell:suse_linux:libXv1-debuginfo, p-cpe:/a:novell:suse_linux:libXvMC-debugsource, p-cpe:/a:novell:suse_linux:libXvMC1, p-cpe:/a:novell:suse_linux:libXvMC1-debuginfo, cpe:/o:novell:suse_linux:12

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: 10/12/2016

Vulnerability Publication Date: 12/13/2016

Reference Information

CVE: CVE-2016-5407, CVE-2016-7942, CVE-2016-7944, CVE-2016-7945, CVE-2016-7946, CVE-2016-7947, CVE-2016-7948, CVE-2016-7949, CVE-2016-7950, CVE-2016-7951, CVE-2016-7952, CVE-2016-7953