hiawatha -- integer overflow in Content-Length header parsing

Description:

Hugo Leisink reports:

A bug has been found in version 7.4 of the Hiawatha webserver, which could lead to a server crash. This is caused by an integer overflow in the routine that reads the HTTP request. A too large value of the Content-Length HTTP header results in an overflow.

References:

• URL: <http://www.hiawatha-webserver.org/weblog/16>
• URL: <http://secunia.com/advisories/43660/>
• URL: <http://securityvulns.com/Zdocument902.html>
• URL: <http://packetstormsecurity.org/files/99021/Hiawatha-WebServer-7.4-Denial-Of-Service.html>
• URL: <http://seclists.org/bugtraq/2011/Mar/65>

Affects:

• hiawatha <7.4_1

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