source: http://www.securityfocus.com/bid/10464/info

It is reported that Colin McRae Rally 2004 has a flaw handling server responses when entering the multiplayer menu of the game.

When entering the multiplayer menu, the game client sends a broadcast message requesting information from all servers on the local network. It is reported that an attacker is able to mimic a server and respond to these broadcast requests with an invalid response, causing a crash of the client game.

An attacker running a malicious server process could block all multiplayer access in a local network, denying service to all legitimate users. 

https://github.com/offensive-security/exploit-database-bin-sploits/raw/master/bin-sploits/24170.zip