Q266356: Multiple Calls to AddHeader Cause Heap Corruption in IIS 4.0
Article: Q266356
Product(s): Internet Information Server
Version(s): 4.0,5.0
Operating System(s):
Keyword(s): kbWinNT400PreSP7Fix kbWin2000PreSP3Fix
Last Modified: 08-MAY-2002
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The information in this article applies to:
- Microsoft Internet Information Server versions 4.0, 5.0
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SYMPTOMS
========
Heap corruption may occur in Internet Information Server (IIS) when you call the
ISAPI AddHeader support function multiple times while processing a single
request in an ISAPI application.
RESOLUTION
==========
Internet Information Server 4.0
-------------------------------
A supported fix is now available from Microsoft, but it is only intended to
correct the problem described in this article and should be applied only to
systems 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 on support costs, please go to the following address on the World
Wide Web:
http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS
NOTE: In special cases, charges that are normally incurred for support calls may
be canceled, if a Microsoft Support Professional determines that a specific
update will resolve your problem. Normal support costs will apply to additional
support questions and issues that do not qualify for the specific update in
question.
The English version of this fix should have the following file attributes or
later:
Date Time Version Size File name Platform
-------------------------------------------------------------
09-07-2000 06:15p 4.2.751.1 330,080 Asp.dll x86
09-07-2000 06:14p 4.2.751.1 55,904 Httpodbc.dll x86
09-07-2000 06:14p 4.2.751.1 185,792 Infocomm.dll x86
09-07-2000 06:14p 4.2.751.1 38,256 Ssinc.dll x86
09-07-2000 06:15p 4.2.751.1 25,360 Sspifilt.dll x86
09-07-2000 06:15p 4.2.751.1 229,008 W3svc.dll x86
Internet Information Server 5.0
-------------------------------
A supported fix is now available from Microsoft, but it is only intended to
correct the problem described in this article and should be applied only to
systems experiencing this specific problem. This fix may receive additional
testing at a later time, to further ensure product quality. Therefore, if you
are not severely affected by this problem, Microsoft recommends that you wait
for the next Windows 2000 service pack that contains this fix.
To resolve this problem immediately, 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, please go to the following
address on the World Wide Web:
http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS
NOTE: In special cases, charges that are normally incurred for support calls may
be canceled, if a Microsoft Support Professional determines that a specific
update will resolve your problem. Normal support costs will apply to additional
support questions and issues that do not qualify for the specific update in
question.
The English version of this fix should have the following file attributes or
later:
Date Time Version Size File name
--------------------------------------------------------
5/31/2001 03:32p 5.0.2195.3649 353,040 W3svc.dll
STATUS
======
Internet Information Server 4.0
-------------------------------
Microsoft has confirmed this to be a problem in Internet Information Server 4.0.
Internet Information Server 5.0
-------------------------------
Microsoft has confirmed this to be a problem in the Microsoft products that are
listed at the beginning of this article.
Additional query words:
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Keywords : kbWinNT400PreSP7Fix kbWin2000PreSP3Fix
Technology : kbiisSearch kbiis500 kbiis400
Version : :4.0,5.0
Hardware : ALPHA x86
Issue type : kbbug
Solution Type : kbfix
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