[Full-disclosure] Local Heap OverFlow Vulnerability in "Answering Service" of Icq

·= Security Advisory =·

Issue: Local Heap OverFlow Vulnerability
in "Answering Service" of Icq.
Discovered Date: 09/08/2006
Author: Tal Argoni, LegendaryZion. [talargoni at gmail.com]
Product Vendor: http://www.Icq.com


Icq 2003 client is prone to a Local Heap OverFlow Vulnerability.
The vulnerability exists in "Answering Service" function,
because lack of boundary testing.


Open the key: HKLM\Software\Mirabilis\ICQ\ICQPro\DefaultPrefs\Presets
Edit the value: AwayMsg Presets [#]
Add 501 bytes string value.
Open icq.
Change the away to the one you have audit above and the icq client crash.

Tested on Icq 2003b 3916

Tal Argoni, CEH

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