full-disclosure - Google Chrome Browser Vulnerability

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Date: Wed, 3 Sep 2008 05:20:45 +0530
From: Rishi Narang <psy.echo@...il.com>
To: full-disclosure@...ts.grok.org.uk
Subject: Google Chrome Browser Vulnerability

Hi,

---------------------------------------------------
Software:
Google Chrome Browser 0.2.149.27

Tested:
Windows XP Professional SP3

Result:
Google Chrome Crashes with All Tabs

Problem:
An issue exists in how chrome behaves with undefined-handlers in chrome.dll version 0.2.149.27. A crash can result without user interaction. When a user is made to visit a malicious link, which has an undefined handler followed by a 'special' character, the chrome crashes with a Google Chrome message window "Whoa! Google Chrome has crashed. Restart now?". It fails in dealing with the POP EBP instruction when pointed out by the EIP register at 0x01002FF4.

Proof of Concept:
http://evilfingers.com/advisory/google_chrome_poc.php

Credit:
Rishi Narang (psy.echo)
www.greyhat.in
www.evilfingers.com
---------------------------------------------------

--
Thanks & Regards,
Rishi Narang | Security Researcher
Founder, GREYHAT Insight
Key: 0x8D67A3A3 (www.greyhat.in/key.asc) 
www.greyhat.in 

... eschew obfuscation, espouse elucidation.

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