USN-377-1: NVIDIA vulnerability

4 November 2006

linux-restricted-modules-2.6.15, linux-restricted-modules-2.6.17 vulnerability

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

  • Ubuntu 6.10
  • Ubuntu 6.06 LTS

Software Description


Derek Abdine discovered that the NVIDIA Xorg driver did not correctly verify the size of buffers used to render text glyphs. When displaying very long strings of text, the Xorg server would crash. If a user were tricked into viewing a specially crafted series of glyphs, this flaw could be exploited to run arbitrary code with root privileges.

Update instructions

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

Ubuntu 6.10
nvidia-glx -
Ubuntu 6.06 LTS
nvidia-glx -

To update your system, please follow these instructions:

After a standard system upgrade you need to reboot your computer to effect the necessary changes.