Buffer overflow in CDE dtmail and dtmailpr programs allows local users to gain privileges via a long -f option.
https://exchange.xforce.ibmcloud.com/vulnerabilities/3580
https://exchange.xforce.ibmcloud.com/vulnerabilities/3579
http://www.securityfocus.com/bid/832
http://www.security-express.com/archives/bugtraq/1999-q4/0122.html