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From:Juha-Matti Laurio <juha-matti.laurio_(at)_netti.fi>
Date:21.08.2006
Subject:Flock Concurrency-related Memory Corruption Vulnerability

The newest version of Flock browser is affected to so-called concurrency-related XML handler memory corruption vulnerability disclosed on Bugtraq recently.
When visiting the test link http://lcamtuf.coredump.cx/ffoxdie3.html
browser crashed after a delay of some seconds. No user interaction was needed.

Affected versions:
Vulnerability has been confirmed in Flock 0.7.4.1 in Windows 2000 SP4 fully patched.
UA string: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8.0.5) Gecko/20060731 Firefox/1.5.0.5 Flock/0.7.4.1

Solution status:
No updated version available from the vendor at the time of reporting.

Vendor Homepage:
http://www.flock.com/

Credit:
This vulnerability was reported earlier in Firefox 1.5.0.6 by Michal Zalewski.
Juha-Matti Laurio confirmed this vulnerability in Flock.

This message provides some additional information to previous message related to K-Meleon browser.

Timeline:
18-Aug-2006 - Vulnerability confirmed in Flock
19-Aug-2006 - Security companies and several CERT units contacted


Best regards,
Juha-Matti Laurio
Networksecurity.fi
http://www.networksecurity.fi/

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