Microsoft KB Archive/252693: Difference between revisions
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Latest revision as of 17:09, 19 July 2020
Article ID: 252693
Article Last Modified on 9/2/2005
APPLIES TO
- Microsoft Internet Information Server 4.0
This article was previously published under Q252693
SYMPTOMS
A repetitive attack using a specially malformed request may cause Internet Information Server (IIS) to use a large amount of memory, and eventually cause the service to fail. This problem can occur when the client uses the Transfer-Encoding: chunked header in its request.
RESOLUTION
Windows NT 4.0
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem.
To resolve this problem, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:
NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
The following files are available for download from the Microsoft Download Center:
US English:
Alpha: Download Chkenc4a.exe now
Chinese (Simplified):
Alpha: Download Chkenc4a.exe now
Chinese (Traditional):
Alpha: Download Chkenc4a.exe now
Dutch:
Alpha: Download Chkenc4a.exe now
French:
Alpha: Download Chkenc4a.exe now
German:
Alpha: Download Chkenc4a.exe now
Japanese:
Alpha: Download Chkenc4a.exe now
Korean:
Alpha: Download Chkenc4a.exe now
Portuguese (Brazil):
Alpha: Download Chkenc4a.exe now
Spanish:
Alpha: Download Chkenc4a.exe now
Swedish:
Alpha: Download Chkenc4a.exe now
NOTE: Debug symbol files are required by an administrator to do both kernel and user mode debugging, providing a method to resolve global variables and function names in the loaded executable file. Click the file names below to download the symbol files:
US English:
Alpha: Download Chkenc4as.exe now
Chinese (Simplified):
Alpha: Download Chkenc4as.exe now
Chinese (Traditional):
Alpha: Download Chkenc4as.exe now
German:
Alpha: Download Chkenc4as.exe now
Japanese:
Alpha: Download Chkenc4as.exe now
Korean:
Alpha: Download Chkenc4as.exe now
The English version of this fix should have the following file attributes or later:
Date Time Version Size File name Platform ---------------------------------------------------------------------- 1/28/2000 02:32:16p 4.2.739.1 185,760b Infocomm.dll x86 1/28/2000 02:33:10p 4.2.739.1 38,256b Ssinc.dll x86 1/28/2000 02:33:18p 4.2.739.1 25,360b Sspifilt.dll x86 1/28/2000 02:32:58p 4.2.739.1 228,480b W3svc.dll x86 1/28/2000 05:32:05p 4.2.739.1 304,400b Infocomm.dll Alpha 1/28/2000 05:53:00p 4.2.739.1 60,176b Ssinc.dll Alpha 1/28/2000 05:53:07p 4.2.739.1 39,696b Sspifilt.dll Alpha 1/28/2000 05:32:49p 4.2.739.1 383,760b W3svc.dll Alpha
Microsoft Windows NT Server version 4.0, Terminal Server Edition
To resolve this problem, obtain the Windows NT Server 4.0, Terminal Server Edition, Security Rollup Package (SRP). For additional information about the SRP, click the article number below to view the article in the Microsoft Knowledge Base:
317636 Windows NT Server 4.0, Terminal Server Edition, Security Rollup Package
STATUS
Microsoft has confirmed that this is a problem in Internet Information Server 4.0.
Additional query words: security_patch tsesrp
Keywords: kbbug kbfix kbgraphxlinkcritical kbsecurity KB252693