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Mozilla Firefox 2.0.0.5 Released with Fix for firefoxurl:// Exploit

Wednesday July 18th, 2007

Mozilla Firefox 2.0.0.5 has been released and is currently being distributed to Firefox 2 users via the application's built-in software update system. The browser upgrade fixes several security bugs, which are detailed in the Firefox 2.0.0.5 section of the Mozilla Foundation Security Advisories page.

Firefox 2.0.0.5 includes a fix for the firefoxurl:// security exploit, which allows an attacker to use Microsoft Internet Explorer to trick Firefox into executing malicious code. Whether Firefox or IE is responsible for the flaw has been a matter of debate over the past week. The Mozilla Foundation security advisory about the firefoxurl:// issue maintains that it's a problem in IE and notes that other applications could be exploited in the same way. Others have argued that it's Firefox's responsibility to vet incoming data (something 2.0.0.5 now does).

Firefox 2.0.0.5 can be downloaded from the Firefox product page. The Firefox 2.0.0.5 Release Notes contain more general information about the upgrade. A similar update for Mozilla Thunderbird is expected shortly.


#3 MSIE Bug

by HwC

Wednesday July 18th, 2007 7:20 AM

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Good for Firefox! It doesn't matter who's at fault. If it harms Fx users, Fx should fix it and let M$ squabble and point fingers and look like idiots. If it only happens when Fx is installed on system, I assume people are running both browsers, side-by-side as a test. It's good to make Fx look best and most concerned with their users' safety and protection.