The remote host is missing an update to xtokkaetama announced via advisory DSA 356-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%20356-1

Steve Kemp discovered two buffer overflows in xtokkaetama, a puzzle game, when processing the -display command line option and the XTOKKAETAMADIR environment variable. These vulnerabilities could be exploited by a local attacker to gain gid 'games'. For the current stable distribution (woody) this problem has been fixed in version 1.0b-6woody1. For the unstable distribution (sid) this problem is fixed in version 1.0b-8. We recommend that you update your xtokkaetama package.