NCP Network Communication Secure Client 8.11 Build 146, and possibly other versions, allows local users to cause a denial of service (memory usage and cpu utilization) via a flood of arbitrary UDP datagrams to ports 0 to 65000. NOTE: this issue was reported as a buffer overflow, but that term usually does not apply in flooding attacks.
https://exchange.xforce.ibmcloud.com/vulnerabilities/25249
http://www.securityfocus.com/bid/16906
http://www.securityfocus.com/archive/1/426480/100/0/threaded
http://secunia.com/advisories/19082
http://lists.grok.org.uk/pipermail/full-disclosure/2006-March/042640.html