Microsoft Security Bulletin MS00-018
Patch Available for "Chunked Encoding Post" Vulnerability
Originally Posted: March 20, 2000
Microsoft has released a patch that eliminates a security vulnerability in Microsoft® Internet Information Server 4.0. The vulnerability could allow a malicious user to consume all resources on a web server and prevent it from servicing other users.
Frequently asked questions regarding this vulnerability can be found at http://www.microsoft.com/technet/security/bulletin/fq00-018.mspx.
Please see the following references for more information related to this issue.
- Microsoft Security Bulletin MS00-018: Frequently Asked Questions
- Microsoft Knowledge Base (KB) article 252693, Chunked Encoding Request with No Data Causes IIS Memory Leak.
- RFC 2616, Hypertext Transfer Protocol - HTTP 1.1
- Microsoft TechNet Security web site.
Obtaining Support on this Issue
This is a fully supported patch. Information on contacting Microsoft Technical Support is available at http://support.microsoft.com/contactussupport/?ws=support
Microsoft thanks Petteri Stenius for reporting this issue to us and working with us to protect customers.
- March 20, 2000: Bulletin Created.
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