The FTP Server in Sambar Server 6.4 allows remote authenticated users to cause a denial of service (application crash) via a long series of "./" sequences in the SIZE command.
https://www.exploit-db.com/exploits/2934
https://exchange.xforce.ibmcloud.com/vulnerabilities/30920
https://euvd.enisa.europa.eu/vulnerability/EUVD-2006-6607
http://www.vupen.com/english/advisories/2006/5041
http://www.securityfocus.com/data/vulnerabilities/exploits/21617.php
http://www.securityfocus.com/bid/21617