Unknown vulnerability in ping in HP Tru64 UNIX 5.1a, 5.1, 5.0a, 4.0g, and 4.0f allows local users to cause a denial of service.
https://exchange.xforce.ibmcloud.com/vulnerabilities/10014
http://www.securityfocus.com/bid/5599
http://www.kb.cert.org/vuls/id/612833
http://cert.uni-stuttgart.de/archive/bugtraq/2002/08/msg00430.html