USN-294-1: courier vulnerability

9 June 2006

courier vulnerability

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Details

A Denial of Service vulnerability has been found in the function for
encoding email addresses. Addresses containing a '=' before the '@'
character caused the Courier to hang in an endless loop, rendering the
service unusable.

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Update instructions

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

Ubuntu 6.06
  • courier-mta - 0.47-13ubuntu5.1
Ubuntu 5.10
  • courier-mta - 0.47-3ubuntu7.2
Ubuntu 5.04
  • courier-mta - 0.47-3ubuntu1.5

In general, a standard system upgrade is sufficient to effect the
necessary changes.

References

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