Windows Media Server Denial of Service
Reported February 24, 2000 by Kit Knox
According to Microsoft"s report, "The handshake sequence between a Windows Media server and a Windows Media Player is asynchronous, because certain resource requests are dependent on the successful completion of previous ones. If the client-side handshake packets are sent in a particular misordered sequence, with certain timing constraints, the server will attempt to use a resource before it has been initialized and will fail catastrophically, causing the Windows Media Unicast Service to crash."
NOTE: Windows NT Server 4.0 customers should upgrade their Windows Media Services installation to Windows Media Services 4.1 before applying the patch. Windows Media Services 4.1 can be downloaded for free from the following URL:
Windows 2000 Server includes Windows Media Services 4.1, so the patch can be applied directly to this configuration.