Microsoft Windows NNTP Denial of Service Vulnerability Solution:
Microsoft has released the following patches which rectify this issue:
Microsoft Windows 2000 Server SP2
Microsoft Windows 2000 Advanced Server SP1
Microsoft Windows NT 4.0 Option Pack
Microsoft Windows 2000 Server SP1
Microsoft Windows 2000 Advanced Server SP2
Microsoft Windows 2000 Advanced Server
Microsoft Windows 2000 Server
Microsoft Exchange Server 2000