Microsoft Windows Server Message Block Handlers Remote Buffer Overflow Vulnerability

"Microsoft Windows Server Message Block handler is reported prone to a
remote buffer-overflow vulnerability.

Note that since SMB drivers execute in the kernel memory space, a successful
attack can grant a remote attacker unauthorized access with ring-0
privileges.

Microsoft has noted that other protocols, such as IPX/SPX, could also be
vulnerable to this issue."

http://www.securityfocus.com/bid/12484

Imhotep