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freechat111a.txt

freechat111a.txt
Posted Feb 25, 2004
Authored by Donato Ferrante | Site autistici.org

FreeChat version 1.1.1a has problems parsing certain strings resulting in a denial of service.

tags | advisory, denial of service
SHA-256 | 20beb4c3ae2a31f0386c7c811b2717bc6cddff10f7bda6a57a1192b002724d33

freechat111a.txt

Change Mirror Download
                           Donato Ferrante


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

Version: 1.1.1a

Bug: Denial Of Service

Author: Donato Ferrante
e-mail: fdonato@autistici.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:
-------------

To test the vulnerability simply send to the chat server,
a string like:

"aaaaa"



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------------
4. The fix:
------------

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



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