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CERT Coordination Center

Apache HTTP Server contains a buffer overflow in the mod_proxy module

Vulnerability Note VU#541310

Original Release Date: 2004-10-19 | Last Revised: 2004-10-19

Overview

Apache Web Server contains a buffer overflow vulnerability in the mod_proxy module that may allow a remote attacker to execute arbitrary code or launch a denial of service (DoS) attack.

Description

The Apache Server is an open-source web server offered by The Apache Software Foundation. The Apache Server uses the mod_proxy module to implement proxying for various common protocols such as FTP and HTTP. In versions of Apache prior to and including 1.3.31-r2, the mod_proxy module contains a buffer overflow vulnerability located in the file proxy_util.c. To exploit this vulnerability an attacker must persuade an Apache server with mod_proxy enabled to connect to a malicious server configured to return an invalid content-length header.

Impact

A remote attacker may be able to execute arbitrary code with the privileges of an Apache child process. Exploitation of this vulnerability may completely disable the Apache

server resulting in a denial-of-service condition.

Solution

Upgrade Apache

Apache states this issue was fixed in Apache httpd 1.3.32-dev.

Vendor Information

541310
 
Affected   Unknown   Unaffected

Apache

Updated:  August 20, 2004

Status

  Vulnerable

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

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.


CVSS Metrics

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A

References

Credit

This vulnerability was reported by Georgi Guninski.

This document was written by Jeff Gennari.

Other Information

CVE IDs: CVE-2004-0492
Severity Metric: 4.02
Date Public: 2004-06-10
Date First Published: 2004-10-19
Date Last Updated: 2004-10-19 17:55 UTC
Document Revision: 106

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