retroclient.exe in EMC Dantz Retrospect Backup Client 7.5.116 allows remote attackers to cause a denial of service (daemon crash) via malformed packets to TCP port 497, which trigger a NULL pointer dereference.
https://exchange.xforce.ibmcloud.com/vulnerabilities/43926
http://www.vupen.com/english/advisories/2008/2150/references
http://www.securityfocus.com/bid/30313
http://www.securityfocus.com/archive/1/494562/100/0/threaded
http://www.fortiguardcenter.com/advisory/FGA-2008-16.html
http://securityreason.com/securityalert/4031
http://secunia.com/advisories/31186
http://kb.dantz.com/display/2/articleDirect/index.asp?aid=9692&r=0.5160639