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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important.  If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.


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Vulnerability Assessment Details

HTTP User-Agent overflow

Vulnerability Assessment Summary
Too long User-Agent kills the web server

Detailed Explanation for this Vulnerability Assessment
It was possible to kill the web server by
sending an invalid GET request with a too long User-Agent field

A cracker may exploit this vulnerability to make your web server
crash continually or even execute arbirtray code on your system.

Solution : upgrade your software or protect it with a filtering reverse proxy
Network Security Threat Level: High

Networks Security ID: 3443, 3449, 7054

Vulnerability Assessment Copyright: This script is Copyright (C) 2002 Michel Arboi

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