CVE-1999-0225
Windows NT 4.0 allows remote attackers to cause a denial of service via a malformed SMB logon request in which the actual data size does not match the specified size.
Date published : 2000-06-02
http://www.microsoft.com/technet/support/kb.asp?ID=180963
http://www.nai.com/nai_labs/asp_set/advisory/25_windows_nt_dos_adv.asp