USN-226-1: Courier vulnerability

10 December 2005

Courier vulnerability

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Releases

Details

Patrick Cheong Shu Yang discovered a flaw in the user account handling
of courier-authdaemon. After successful authorization, the Courier
mail server granted access to deactivated accounts.

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.

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Update instructions

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

Ubuntu 5.10
  • courier-authdaemon -
Ubuntu 5.04
  • courier-authdaemon -
Ubuntu 4.10
  • courier-authdaemon -

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

References