Debian Security Advisory DSA 551-1 – An attacker could utilize a vulnerability in tnftpd or lukemftpd to execute arbitrary code on the server.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/34456/dsa-551.txt
Source: https://packetstormsecurity.com/files/34456/dsa-551.txt.html