The remote host is missing an update to gimp announced via advisory USN-480-1.
A security issue affects the following Ubuntu releases:
Ubuntu 6.06 LTS Ubuntu 6.10 Ubuntu 7.04
This advisory also applies to the corresponding versions of Kubuntu, Edubuntu, and Xubuntu.
Details follow:
Stefan Cornelius discovered that Gimp could miscalculate the size of heap buffers when processing PSD images. By tricking a user into opening a specially crafted PSD file with Gimp, an attacker could exploit this to execute arbitrary code with the user's privileges.
Solution: The problem can be corrected by upgrading your system to the following package versions:
Ubuntu 6.06 LTS: gimp 2.2.11-1ubuntu3.3
Ubuntu 6.10: gimp 2.2.13-1ubuntu3.2
Ubuntu 7.04: gimp 2.2.13-1ubuntu4.2
In general, a standard system upgrade is sufficient to effect the necessary changes.