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Re: Google Chrome Browser Vulnerability
From: "Larry Seltzer" <larry () larryseltzer com>
Date: Tue, 2 Sep 2008 20:13:40 -0400

Holy crap, a crash bug in a beta browser! 

Larry Seltzer
eWEEK.com Security Center Editor
http://security.eweek.com/
http://blogs.pcmag.com/securitywatch/
Contributing Editor, PC Magazine
larry.seltzer () ziffdavisenterprise com


-----Original Message-----
From: full-disclosure-bounces () lists grok org uk
[mailto:full-disclosure-bounces () lists grok org uk] On Behalf Of Rishi
Narang
Sent: Tuesday, September 02, 2008 7:51 PM
To: full-disclosure () lists grok org uk
Subject: [Full-disclosure] 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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_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/


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