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Microsoft Security Bulletin (MS99-059)
From: secnotif () MICROSOFT COM (Microsoft Product Security)
Date: Mon, 20 Dec 1999 17:39:44 -0800
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 (MS99-059) -------------------------------------- Patch Available for "Malformed TDS Packet Header" Vulnerability Originally Posted: December 20, 1999 Summary ======= Microsoft has released a patch that eliminates a security vulnerability in Microsoft(r) SQL Server(r) 7.0. The vulnerability could cause a SQL server to crash. Frequently asked questions regarding this vulnerability can be found at http://www.microsoft.com/security/bulletins/MS99-059faq.asp. Issue ===== If a specially-malformed TDS packet is sent to a SQL server, it can cause the SQL service to crash. This vulnerability would not allow any inappropriate access to the data on the server, nor would it allow a malicious user to usurp any administrative control on the machine. An affected machine could be put back into service by restarting the SQL service. This vulnerability could only be remotely exploited if port 1433 were open at the firewall. Affected Software Versions ========================== - Microsoft SQL Server 7.0 Patch Availability ================== - Intel: http://www.microsoft.com/Downloads/Release.asp?ReleaseID=16923 - alpha: http://www.microsoft.com/Downloads/Release.asp?ReleaseID=16924 NOTE: This patch does not locate the SQL folder and install the patched files into it; instead, you must copy the three files contained in it to the MSSQL7/BINN folder. NOTE: Additional security patches are available at the Microsoft Download Center More Information ================ Please see the following references for more information related to this issue. - Microsoft Security Bulletin MS99-059: Frequently Asked Questions, http://www.microsoft.com/security/bulletins/MS99-059faq.asp. - Microsoft Knowledge Base (KB) article Q248749, FIX: Possible Denial of Service Attack with Appropriate NULL Bytes in TDS Header, http://support.microsoft.com/support/kb/articles/q248/7/49.asp. (Note: It may take 24 hours from the original posting of this bulletin for this 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. Acknowledgments =============== Microsoft acknowledges Kevork Belian for bringing this issue to our attention. Revisions ========= - December 20, 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.
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