From: Russ (Russ.CooperRC.ON.CA)
Date: Tue Oct 21 2003 - 16:18:07 CDT

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Bulletin URL:
http://www.microsoft.com/technet/security/bulletin/MS03-043.asp

Summary:
  Version Number: V1.0
  Revision Date: 10-15-2003
  Impact of Vulnerability: Remote Code Execution
  Maximum Severity Rating: Critical
  Patch(es) Replaced: None
  Caveats: None
  CVE Number(s): CAN-2003-0717

Tested Software:
  Affected Software:
  * Microsoft Windows NT Workstation 4.0, Service Pack 6a
<http://www.ntbugtraq.com/link/7597FCF4-6615-4074-9E46-A17D808ED38D.asp>
  * Microsoft Windows NT Server 4.0, Service Pack 6a
<http://www.ntbugtraq.com/link/B1949456-996A-485A-9A28-79FD79F26A1B.asp>
  * Microsoft Windows NT Server 4.0, Terminal Server Edition, Service
Pack 6
<http://www.ntbugtraq.com/link/64AB4B66-1A6E-4264-93A8-26CDB98B05A8.asp>
  * Microsoft Windows 2000, Service Pack 2
<http://www.ntbugtraq.com/link/A0061377-1683-4C13-9527-5534F6C7CF85.asp>
  * Microsoft Windows 2000, Service Pack 3, Service Pack 4
<http://www.ntbugtraq.com/link/99F1B40D-906A-4945-A021-4B494CCCBDE0.asp>
  * Microsoft Windows XP Gold, Service Pack 1
<http://www.ntbugtraq.com/link/F02DA309-4B0A-4438-A0B9-5B67414C3833.asp>
  * Microsoft Windows XP 64-bit Edition
<http://www.ntbugtraq.com/link/2BE95254-4C65-4CA5-80A5-55FDF5AA2296.asp>
  * Microsoft Windows XP 64-bit Edition Version 2003
<http://www.ntbugtraq.com/link/8B990946-84C8-4C91-899C-5A44EC13174E.asp>
  * Microsoft Windows Server 2003
<http://www.ntbugtraq.com/link/1DF106F3-7EC4-4EB0-9143-C1E3C9E2F5F8.asp>
  * Microsoft Windows Server 2003 64-bit Edition
<http://www.ntbugtraq.com/link/8B990946-84C8-4C91-899C-5A44EC13174E.asp>

  Software Not Affected:
  * Microsoft Windows Millennium Edition

Technical Description:
A security vulnerability exists in the Messenger Service that could
allow arbitrary code execution on an affected system. The vulnerability
results because the Messenger Service does not properly validate the
length of a message before passing it to the allocated buffer. An
attacker who successfully exploited this vulnerability could be able to
run code with Local System privileges on an affected system, or could
cause the Messenger Service to fail. The attacker could then take any
action on the system, including installing programs, viewing, changing
or deleting data, or creating new accounts with full privileges.
This email is sent to NTBugtraq automatically as a service to my
subscribers. (v2.0)

Cheers,
Russ - Surgeon General of TruSecure Corporation/NTBugtraq Editor

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