source: https://www.securityfocus.com/bid/12862/info

Multiple FUN labs games are affected by remote denial of service vulnerabilities.

A remote attacker can cause a game server to stop responding by sending an empty UDP packet.

Another vulnerability can allow a remote attacker to send a malformed join packet and crash the server.

These issues can be exploited to cause a denial of service condition in the server. 

https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/25255.zip