The remote host is missing an update to gnomemeeting announced via advisory USN-426-1.
A security issue affects the following Ubuntu releases:
Ubuntu 5.10 Ubuntu 6.06 LTS Ubuntu 6.10
This advisory also applies to the corresponding versions of Kubuntu, Edubuntu, and Xubuntu.
Details follow:
Mu Security discovered a format string vulnerability in Ekiga. If a user was running Ekiga and listening for incoming calls, a remote attacker could send a crafted call request, and execute arbitrary code with the user's privileges.
Solution: The problem can be corrected by upgrading your system to the following package versions:
Ubuntu 5.10: gnomemeeting 1.2.2-1ubuntu1.1
Ubuntu 6.06 LTS: ekiga 2.0.1-0ubuntu6.1
Ubuntu 6.10: ekiga 2.0.3-0ubuntu3.1
After a standard system upgrade you need to restart Ekiga to effect the necessary changes.