Ubuntu Security Notice USN-2436-2

9th December, 2014

xorg-server, xorg-server-lts-trusty vulnerabilities

A security issue affects these releases of Ubuntu and its
derivatives:

• Ubuntu 14.10
• Ubuntu 14.04 LTS
• Ubuntu 12.04 LTS

Summary

USN-2436-1 contained incomplete fixes for the X.Org X server.

Software description

• xorg-server
  – X.Org X11 server

• xorg-server-lts-trusty
  – Xorg X server – source files

Details

USN-2436-1 fixed vulnerabilities in the X.Org X server. Since publication,
additional fixes have been made available for these issues. This update
adds the additional fixes.

Original advisory 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 version:

Ubuntu 14.10:

xserver-xorg-core

2:1.16.0-1ubuntu1.2

Ubuntu 14.04 LTS:

xserver-xorg-core

2:1.15.1-0ubuntu2.5

Ubuntu 12.04 LTS:

xserver-xorg-core

2:1.11.4-0ubuntu10.16

xserver-xorg-core-lts-trusty

2:1.15.1-0ubuntu2~precise4

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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

References

LP: 1400942

Ubuntu Security Notice USN-2438-1

10th December, 2014

nvidia-graphics-drivers-304, nvidia-graphics-drivers-304-updates, nvidia-graphics-drivers-331, nvidia-graphics-drivers-331-updates vulnerabilities

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 NVIDIA graphics drivers.

Software description

• nvidia-graphics-drivers-304
  – NVIDIA binary Xorg driver

• nvidia-graphics-drivers-304-updates
  – NVIDIA binary Xorg driver

• nvidia-graphics-drivers-331
  – NVIDIA binary Xorg driver

• nvidia-graphics-drivers-331-updates
  – NVIDIA binary Xorg driver

Details

It was discovered that the NVIDIA graphics drivers incorrectly handled GLX
indirect rendering support. 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 version:

Ubuntu 14.10:

nvidia-331-updates 331.113-0ubuntu0.1

nvidia-331 331.113-0ubuntu0.1

nvidia-304-updates 304.125-0ubuntu0.1

nvidia-304 304.125-0ubuntu0.1

Ubuntu 14.04 LTS:

nvidia-331-updates 331.113-0ubuntu0.0.4

nvidia-331 331.113-0ubuntu0.0.4

nvidia-304-updates 304.125-0ubuntu0.0.1

nvidia-304 304.125-0ubuntu0.0.1

Ubuntu 12.04 LTS:

nvidia-331-updates 331.113-0ubuntu0.0.0.3

nvidia-331 331.113-0ubuntu0.0.0.3

nvidia-304-updates 304.125-0ubuntu0.0.0.1

nvidia-304 304.125-0ubuntu0.0.0.1

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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

References

CVE-2014-8091,

CVE-2014-8098,

CVE-2014-8298