Firefox 3.5.1 released to fix major security problem

Graham Cluley

As Beth reported on the SophosLabs blog a couple of days ago, there has been a lot of concern about a vulnerability in the recently released Firefox 3.5.

The bug in Firefox 3.5’s Just-in-time (JIT) JavaScript compiler was disclosed publicly, and could be exploited by hackers to run malicious code on your computer.

Mozilla, the makers of Firefox, suggested disabling JIT temporarily and others will have used the NoScript addon to increase their level of security.

However, what the Firefox-using world really wanted was a proper fix, and that’s now arrived.

Mozilla has released version 3.5.1 of Firefox which reportedly fixes the critical vulnerability, and users are strongly…

Read more in my article on the Naked Security website.

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Graham Cluley is a veteran of the anti-virus industry having worked for a number of security companies since the early 1990s when he wrote the first ever version of Dr Solomon's Anti-Virus Toolkit for Windows. Now an independent security analyst, he regularly makes media appearances and is an international public speaker on the topic of computer security, hackers, and online privacy. Follow him on Twitter at @gcluley, or drop him an email.