Microsoft KB Archive/325571

= Buffer Overrun in IIS When No Script Maps Exist =

Article ID: 325571

Article Last Modified on 11/21/2006

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APPLIES TO


 * Microsoft Internet Information Services 5.0

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This article was previously published under Q325571



SYMPTOMS
If no script maps exist for the Web site, a specially formatted URL can cause a buffer overrun, causing IIS to crash.



Service Pack Information
To resolve this problem, obtain the latest service pack for Microsoft Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to Obtain the Latest Windows 2000 Service Pack

Hotfix Information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows 2000 service pack that contains this hotfix.

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, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

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 typical 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 has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

  Date         Time   Version            Size    File name --  01-Jul-2002  12:04  5.0.2195.5917     333,072  Asp.dll 01-Jul-2002 12:04  5.0.2195.3649     299,792  Fscfg.dll 01-Jul-2002 12:04  5.0.2195.5255       8,464  Ftpctrs2.dll 01-Jul-2002 12:04  5.0.2195.5255       6,416  Ftpmib.dll 01-Jul-2002 12:04  5.0.2195.5255       9,488  Httpmib.dll 01-Jul-2002 12:04  5.0.2195.5255      13,584  Infoadmn.dll 01-Jul-2002 12:04  5.0.2195.5255     246,032  Infocomm.dll 01-Jul-2002 12:04  5.0.2195.5810      62,736  Isatq.dll 01-Jul-2002 12:04  5.0.2195.5255       7,440  W3ctrs.dll 01-Jul-2002 12:04  5.0.2195.5919     349,456  W3svc.dll



WORKAROUND
Add a script mapping for the Web site.



STATUS
Microsoft has confirmed that this is a problem in Microsoft Internet Information Services 5.0. This problem was first corrected in Microsoft Windows 2000 Service Pack 4.



MORE INFORMATION
For additional information about how to obtain a hotfix for Windows 2000 Datacenter Server, click the article number below to view the article in the Microsoft Knowledge Base:

265173 Datacenter Program and Windows 2000 Datacenter Server Product

For additional information about how to install multiple hotfixes with only one reboot, click the article number below to view the article in the Microsoft Knowledge Base:

296861 Use QChain.exe to Install Multiple Hotfixes with One Reboot

Keywords: kbbug kbfix kbwin2000presp4fix kbqfe kbwin2000sp3fix kbsecurity kbwin2ksp4fix kbhotfixserver KB325571

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