The remote host is missing an update to omega-rpg announced via advisory DSA 400-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%20400-1

Steve Kemp discovered a buffer overflow in the commandline and environment variable handling of omega-rpg, a text-based rogue-style game of dungeon exploration, which could lead a local attacker to gain unauthorised access to the group games. For the stable distribution (woody) this problem has been fixed in version 0.90-pa9-7woody1. For the unstable distribution (sid) this problem has been fixed in version 0.90-pa9-11. We recommend that you upgrade your omega-rpg package.