The remote host is missing an update to mah-jong announced via advisory DSA 378-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%20378-1

Nicolas Boullis discovered two vulnerabilities in mah-jong, a network-enabled game. - CVE-2003-0705 (buffer overflow) This vulnerability could be exploited by a remote attacker to execute arbitrary code with the privileges of the user running the mah-jong server. - - CVE-2003-0706 (denial of service) This vulnerability could be exploited by a remote attacker to cause the mah-jong server to enter a tight loop and stop responding to commands. For the stable distribution (woody) these problems have been fixed in version 1.4-2. For the unstable distribution (sid) these problems have been fixed in version 1.5.6-2. We recommend that you update your mah-jong package.