Secunia Security Advisory – A vulnerability has been discovered in Core FTP Server / SFTP Server, which can be exploited by malicious people to cause a DoS (Denial of Service).
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/83599/sa37599.txt
Source: https://packetstormsecurity.com/files/83599/Secunia-Security-Advisory-37599.html