Denial of service in RPC portmapper allows attackers to register or unregister RPC services or spoof RPC services using a spoofed source IP address such as 127.0.0.1.
inpview in InPerson on IRIX 5.3 through IRIX 6.5.10 trusts the PATH environmental variable to find and execute the ttsession program, which allows local users to obtain root access by modifying the PATH to point to a Trojan horse ttsession program.