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CERT Coordination Center

Apache Web Server vulnerable to DoS via crafted HTTP request

Vulnerability Note VU#125235

Original Release Date: 2002-03-29 | Last Revised: 2002-07-30

Overview

Some versions of the Apache Web server are vulnerable to denial-of-service attacks by crafted HTTP requests.

Description

A vulnerability exists in some versions the Apache Web (HTTPD) Server running on Windows 98SE, Windows 2000 SP1, and OS/2. The vulnerability appears to be a bounds checking problem in HTTP requests. Receipt of an HTTP request 8192 characters in length can exploit the vulnerability.

Impact

An attacker could cause the server to crash.

Solution

Upgrade to version Apache HTTPD Server 1.3.20 or later. For more info, see:

http://bugs.apache.org/index.cgi/full/7522

Vendor Information

125235
 
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Apache Affected

Notified:  October 13, 2001 Updated: February 26, 2002

Status

Affected

Vendor Statement

"This is only a DoS (it is NOT a buffer overflow) that only applies on Win32 and OS2 and was fixed in 1.3.20, which was released some time ago."

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.


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References

Acknowledgements

Thanks to Auriemma Luigi and Security Tracker for reporting this vulnerability.

This document was written by Shawn Van Ittersum.

Other Information

CVE IDs: None
Severity Metric: 3.80
Date Public: 2001-04-13
Date First Published: 2002-03-29
Date Last Updated: 2002-07-30 18:45 UTC
Document Revision: 11

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