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[USN-1714-1] QXL graphics driver vulnerability

Posted on 05 February 2013
Ubuntu Security

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Ubuntu Security Notice USN-1714-1
February 05, 2013

xserver-xorg-video-qxl vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.04 LTS
- Ubuntu 11.10

Summary:

Guests using the QXL graphics driver could be caused to hang or crash.

Software Description:
- xserver-xorg-video-qxl: X.Org X server -- QXL display driver

Details:

It was discovered that the QXL graphics driver incorrectly handled
terminated connections. An attacker that could connect to a guest using
SPICE and the QXL graphics driver could cause the guest to hang or crash,=

resulting in a denial of service.

Update instructions:

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

Ubuntu 12.04 LTS:
xserver-xorg-video-qxl 0.0.16-2ubuntu0.1

Ubuntu 11.10:
xserver-xorg-video-qxl 0.0.14-1ubuntu0.1

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

References:
http://www.ubuntu.com/usn/usn-1714-1
CVE-2013-0241

Package Information:

https://launchpad.net/ubuntu/+source/xserver-xorg-video-qxl/0.0.16-2ubunt=
u0.1

https://launchpad.net/ubuntu/+source/xserver-xorg-video-qxl/0.0.14-1ubunt=
u0.1



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