Mandriva Linux Security Advisory – The ftp_syst function in ftp-basic.c in Free Software Foundation (FSF) GNU wget 1.10.2 allows remote attackers to cause a denial of service (application crash) via a malicious FTP server with a large number of blank 220 responses to the SYST command.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/53765/MDKSA-2007-017.txt
Source: https://packetstormsecurity.com/files/53765/Mandriva-Linux-Security-Advisory-2007.017.html