OSEC

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Denial Of Service in FreeChat 1.1.1a

From: Donato Ferrante (fdonatoautistici.org)
Date: Thu Feb 26 2004 - 02:11:11 CST


                           Donato Ferrante

Application: FreeChat
              http://sourceforge.net/projects/vbfreechat/

Version: 1.1.1a

Bug: Denial Of Service

Author: Donato Ferrante
              e-mail: fdonatoautistici.org
              web: www.autistici.org/fdonato

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1. Description
2. The bug
3. The code
4. The fix

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1. Description:
----------------

Vendor's Description:

"FreeChat is a webserver with support for a browser based streaming
chat written in Visual Basic 6. The chat so far supports multiple
rooms (public/private), graphical emicons, whispering, multiple
languages and more."

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2. The bug:
------------

The server is not able to manage crafted strings. In fact it will
crash.

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3. The code:
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To test the vulnerability simply send to the chat server,
a string like:

"aaaaa"

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4. The fix:
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No fix.
The vendor has not answered to my signalations.

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