A vulnerability has been identified in Microsoft Windows, which couldbe exploited by remote attackers to cause a denial of service. Thisflaw is due to NULL pointer dereference error in the server driver(srv.sys) when handling specially crafted SMB (Server Message Block)packets, which could be exploited by remote unauthenticated attackersto cause a vulnerable system to crash and display a blue screen,creating a denial of service condition.
Note : A fully functional exploit has been published.