SUSE SLES11 Security Update : xorg-x11-server (SUSE-SU-2017:3025-1)

critical Nessus Plugin ID 104651



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


This update for xorg-x11-server provides several fixes. These security issues were fixed :

- CVE-2017-13723: Prevent local DoS via unusual characters in XkbAtomText and XkbStringText (bsc#1051150).

- Improve the entropy when generating random data used in server authorization cookies generation by using getentropy() and getrandom() when available (bsc#1025084)

- CVE-2017-12184,CVE-2017-12185,CVE-2017-12186,CVE-2017-12 187: Fixed unvalidated lengths in multiple extensions (bsc#1063034)

- CVE-2017-12183: Fixed some unvalidated lengths in the XFIXES extension. (bsc#1063035)

- CVE-2017-12180,CVE-2017-12181,CVE-2017-12182: Fixed various unvalidated lengths in the XFree86-VidMode/XFree86-DGA/XFree86-DRI extensions (bsc#1063037)

- CVE-2017-12179: Fixed an integer overflow and unvalidated length in (S)ProcXIBarrierReleasePointer in Xi (bsc#1063038)

- CVE-2017-12178: Fixed a wrong extra length check in ProcXIChangeHierarchy in Xi (bsc#1063039)

- CVE-2017-12177: Fixed an unvalidated variable-length request in ProcDbeGetVisualInfo (bsc#1063040)

- CVE-2017-12176: Fixed an unvalidated extra length in ProcEstablishConnection (bsc#1063041)

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.


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 11-SP4:zypper in -t patch sdksp4-xorg-x11-server-13345=1

SUSE Linux Enterprise Server 11-SP4:zypper in -t patch slessp4-xorg-x11-server-13345=1

SUSE Linux Enterprise Debuginfo 11-SP4:zypper in -t patch dbgsp4-xorg-x11-server-13345=1

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

See Also

Plugin Details

Severity: Critical

ID: 104651

File Name: suse_SU-2017-3025-1.nasl

Version: 3.11

Type: local

Agent: unix

Published: 11/17/2017

Updated: 1/19/2021

Supported Sensors: Nessus Agent

Risk Information


Risk Factor: Medium

Score: 5.9


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


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:xorg-x11-Xvnc, p-cpe:/a:novell:suse_linux:xorg-x11-server, p-cpe:/a:novell:suse_linux:xorg-x11-server-extra, cpe:/o:novell:suse_linux:11

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: 11/16/2017

Vulnerability Publication Date: 10/10/2017

Reference Information

CVE: CVE-2017-12176, CVE-2017-12177, CVE-2017-12178, CVE-2017-12179, CVE-2017-12180, CVE-2017-12181, CVE-2017-12182, CVE-2017-12183, CVE-2017-12184, CVE-2017-12185, CVE-2017-12186, CVE-2017-12187, CVE-2017-13723