Debian Security Advisory 1222-1 – Several remote vulnerabilities have been discovered in the proftpd FTP daemon, which may lead to the execution of arbitrary code or denial of service.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/52716/dsa-1222-1.txt
Source: https://packetstormsecurity.com/files/52716/Debian-Linux-Security-Advisory-1222-1.html