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Ubuntu Security Notice USN-2436-1
December 09, 2014

xorg-server, xorg-server-lts-trusty vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

– Ubuntu 14.10
– Ubuntu 14.04 LTS
– Ubuntu 12.04 LTS

Summary:

Several security issues were fixed in the X.Org X server.

Software Description:
– xorg-server: X.Org X11 server
– xorg-server-lts-trusty: X.Org X11 server

Details:

Ilja van Sprundel discovered a multitude of security issues in the X.Org X
server. An attacker able to connect to an X server, either locally or
remotely, could use these issues to cause the X server to crash or execute
arbitrary code resulting in possible privilege escalation.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 14.10:
xserver-xorg-core 2:1.16.0-1ubuntu1.1

Ubuntu 14.04 LTS:
xserver-xorg-core 2:1.15.1-0ubuntu2.4

Ubuntu 12.04 LTS:
xserver-xorg-core 2:1.11.4-0ubuntu10.15
xserver-xorg-core-lts-trusty 2:1.15.1-0ubuntu2~precise3

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-2436-1
CVE-2014-8091, CVE-2014-8092, CVE-2014-8093, CVE-2014-8094,
CVE-2014-8095, CVE-2014-8096, CVE-2014-8097, CVE-2014-8098,
CVE-2014-8099, CVE-2014-8100, CVE-2014-8101, CVE-2014-8102,
CVE-2014-8103

Package Information:
https://launchpad.net/ubuntu/+source/xorg-server/2:1.16.0-1ubuntu1.1
https://launchpad.net/ubuntu/+source/xorg-server/2:1.15.1-0ubuntu2.4
https://launchpad.net/ubuntu/+source/xorg-server/2:1.11.4-0ubuntu10.15

https://launchpad.net/ubuntu/+source/xorg-server-lts-trusty/2:1.15.1-0ubuntu2~precise3

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