CVE:CVE-2006-1999
CNNVD:CNNVD-200604-472
OpenTTD 0.4.7中的multiplayer菜单允许远程攻击者借助于大小不正确的UDP包造成拒绝服务，这使得客户端返回主菜单。
solution:Upgrade openttd openttd to a higher version than 0.4.7,and avoid the version 0.4.7