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

This script is Copyright (C) 2016 Tenable Network Security, Inc.


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.

See also :

https://bugzilla.suse.com/1002991
https://bugzilla.suse.com/1002995
https://bugzilla.suse.com/1002998
https://bugzilla.suse.com/1003000
https://bugzilla.suse.com/1003002
https://bugzilla.suse.com/1003012
https://bugzilla.suse.com/1003017
https://bugzilla.suse.com/1003023
https://www.suse.com/security/cve/CVE-2016-5407.html
https://www.suse.com/security/cve/CVE-2016-7942.html
https://www.suse.com/security/cve/CVE-2016-7944.html
https://www.suse.com/security/cve/CVE-2016-7945.html
https://www.suse.com/security/cve/CVE-2016-7946.html
https://www.suse.com/security/cve/CVE-2016-7947.html
https://www.suse.com/security/cve/CVE-2016-7948.html
https://www.suse.com/security/cve/CVE-2016-7949.html
https://www.suse.com/security/cve/CVE-2016-7950.html
https://www.suse.com/security/cve/CVE-2016-7951.html
https://www.suse.com/security/cve/CVE-2016-7952.html
https://www.suse.com/security/cve/CVE-2016-7953.html
http://www.nessus.org/u?0cbfee69

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'.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.5
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

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