source: https://www.securityfocus.com/bid/12439/info

LANChat Pro Revival is reported prone to a remote denial of service vulnerability. It is reported that the issue presents itself when the vulnerable client processes a malformed UDP datagram.

A remote attacker may exploit this vulnerability to crash the affected application effectively denying service to legitimate users. 

https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/25081.zip