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Insecure Library Loading
Moderately critical

hyperguard "Content-Length" Denial of Service Vulnerability

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Release Date:  2009-07-01    Last Update:  2009-07-06    Views:  2,469

Secunia Advisory SA35645

Where:

From remote

Impact:

DoS

Solution Status:

Vendor Patch

CVE Reference(s):

Description


A vulnerability has been reported in hyperguard, which can be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error in the processing of HTTP requests, which can be exploited to exhaust system memory potentially causing a crash by sending specially crafted HTTP requests containing overly large values in the "Content-Length" header.

The vulnerability is reported in the Apache web server module in hyperguard prior to versions 3.1.1-11637, 3.0.3-11636, and 2.5.5-11635.


Solution:
Update to version 3.1.1-11637, 3.0.3-11636, or 2.5.5-11635 or later.

Provided and/or discovered by:
Michael Kirchner, Wolfgang Neudorfer, and Lukas Nothdurfter (Team h4ck!nb3rg)

Original Advisory:
http://www.h4ck1nb3rg.at/wafs/advisory_artofdefence_hyperguard_200907.txt

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: hyperguard "Content-Length" Denial of Service Vulnerability

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