The remote host is missing an update to playmidi announced via advisory DSA 641-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%20641-1

Erik Sjölund discovered that playmidi, a MIDI player, contains a setuid root program with a buffer overflow that can be exploited by a local attacker. For the stable distribution (woody) this problem has been fixed in version 2.4-4woody1. For the unstable distribution (sid) this problem has been fixed in version 2.4debian-3. We recommend that you upgrade your playmidi package.