[prev in list] [next in list] [prev in thread] [next in thread] 

List:       bugtraq
Subject:    Microsoft Security Bulletin (MS99-023)
From:       aleph1 () UNDERGROUND ! ORG
Date:       1999-06-30 23:08:43
[Download RAW message or body]

The following is a Security  Bulletin from the Microsoft Product Security
Notification Service.

Please do not  reply to this message,  as it was sent  from an unattended
mailbox.
                    ********************************

Microsoft Security Bulletin (MS99-023)

Patch Available for "Malformed Image Header" Vulnerability
----------------------------------------------------------

Originally Posted: June 30, 1999

Summary
=======
Microsoft has released a patch that eliminates a vulnerability that could
allow denial of service  attacks against Microsoft(r) Windows NT(r) servers,
workstations, and terminal servers. This  patch already is available as part
of Windows NT Server Service Pack 5, but is being provided as  a stand-alone
patch for the benefit of users who have entered Y2K lockdown on Service Pack
4.

Frequently asked questions regarding this vulnerability can be found at
http://www.microsoft.com/security/bulletins/MS99-023faq.asp

Issue
=====
If an executable file with a specially-malformed image header is executed,
it will cause a system  failure. The affected machine will need to be
rebooted in order to place it back in service. Any  work that was in
progress when the machine crashed could be lost.

Affected Software Versions
==========================
 - Microsoft Windows NT Server 4.0
 - Microsoft Windows NT Workstation 4.0
 - Microsoft Windows NT Server 4.0, Terminal Server Edition

Patch Availability
==================
 - Windows NT Server and Workstation 4.0:
   ftp://ftp.microsoft.com/bussys/winnt/winnt-public/fixes
   /usa/nt40/Hotfixes-PostSP4/Kernel-fix/
 - Windows NT Server 4.0, Terminal Server Edition:
   ftp://ftp.microsoft.com/bussys/winnt/winnt-public/fixes
   /usa/nt40tse/Hotfixes-PostSP4/Kernel-fix/

NOTE: Line breaks have been added to the above URLs for readability.

More Information
================
Please see the following references for more information related to this
issue.
 - Microsoft Security Bulletin MS99-023: Frequently Asked Questions,
   http://www.microsoft.com/security/bulletins/MS99-023faq.asp.
 - Microsoft Knowledge Base (KB) article Q234557,
   Executable with a Specially-Malformed Image Header May Crash Windows NT,
   http://support.microsoft.com/support/kb/articles/q234/5/57.asp.
   (Note: It may take 24 hours from the original posting of this bulletin
   for the KB article to be visible)
 - Microsoft Security Advisor web site,
   http://www.microsoft.com/security/default.asp.

Obtaining Support on this Issue
===============================
This is a fully supported patch. Information on contacting Microsoft
Technical Support is available at
http://support.microsoft.com/support/contact/default.asp.

Revisions
=========
 - June 30, 1999: Bulletin Created.

-----------------------------------------------------------------

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS"
WITHOUT WARRANTY OF  ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER
EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES  OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION  OR ITS
SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT,
INCIDENTAL,  CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES,
EVEN IF MICROSOFT CORPORATION OR ITS  SUPPLIERS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE  EXCLUSION OR
LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE
FOREGOING  LIMITATION MAY NOT APPLY.

(c) 1999 Microsoft Corporation. All rights reserved. Terms of Use.

   *******************************************************************
You have received  this e-mail bulletin as a result  of your registration
to  the   Microsoft  Product  Security  Notification   Service.  You  may
unsubscribe from this e-mail notification  service at any time by sending
an  e-mail  to  MICROSOFT_SECURITY-SIGNOFF-REQUEST@ANNOUNCE.MICROSOFT.COM
The subject line and message body are not used in processing the request,
and can be anything you like.

For  more  information on  the  Microsoft  Security Notification  Service
please visit http://www.microsoft.com/security/services/bulletin.asp. For
security-related information  about Microsoft products, please  visit the
Microsoft Security Advisor web site at http://www.microsoft.com/security.

[prev in list] [next in list] [prev in thread] [next in thread]