USN-341-1: libxfont vulnerability

7 September 2006

libxfont vulnerability

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Details

An integer overflow has been discovered in X.org's font handling
library. By using a specially crafted font file, this could be
exploited to crash the X server or execute arbitrary code with root
privileges.

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

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

Ubuntu 6.06
  • libxfont1 - 1:1.0.0-0ubuntu3.1
Ubuntu 5.10
  • libxfont1 - 1:0.99.0+cvs.20050909-1.1
Ubuntu 5.04
  • libfs6 - 6.8.2-10.3
  • xserver-xorg - 6.8.2-10.3

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

References

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