The remote host is missing an update to pan announced via advisory USN-845-1.

The problem can be corrected by upgrading your system to the following package versions: Ubuntu 8.04 LTS: pan 0.132-2ubuntu2.1 In general, a standard system upgrade is sufficient to effect the necessary changes. https://secure1.securityspace.com/smysecure/catid.html?in=USN-845-1

Pavel Polischouk discovered that Pan incorrectly handled certain data structures. If a user were tricked into viewing malicious nntp data, a remote attacker could cause a denial of service or possibly execute arbitrary code with the privileges of the user invoking the program.