Multiple unspecified vulnerabilities in IXceedCompression in XceddZipLib (RaidenFTPD.dll) in RaidenFTPD 2.4 allow remote attackers to cause a denial of service (crash) via unspecified vectors involving the (1) CalculateCrc, (2) Compress, and (3) Uncompress functions, which result in a NULL pointer dereference.
https://exchange.xforce.ibmcloud.com/vulnerabilities/33776
http://www.securityfocus.com/bid/23570
http://www.securityfocus.com/archive/1/466319/100/0/threaded