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USN-278-1: gdm vulnerability

4 May 2006

gdm vulnerability

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Releases

Details

Marcus Meissner discovered a race condition in gdm's handling of the
~/.ICEauthority file permissions. A local attacker could exploit this
to become the owner of an arbitrary file in the system. When getting
control over automatically executed scripts (like cron jobs), the
attacker could eventually leverage this flaw to execute arbitrary
commands with root privileges.

Reduce your security exposure

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.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 5.10
  • gdm -
Ubuntu 5.04
  • gdm -

In general, a standard system update will make all the necessary changes.

References