Feeds

Firefox update fixes zero-day JavaScript flaw

Just-in-Time vuln fixed in nick of time

Build a business case: developing custom apps

Mozilla has released an update version of Firefox that addresses a previously unpatched flaw that has become the target of hacking attacks over recent days.

Firefox 3.5.1, released on Thursday, resolves a Just-in-Time (JIT) JavaScript compiler flaw in version 3.5 of the popular open source browser software, as explained in Mozilla's advisory here. Exploits based on the vulnerability were posted on a security site on Tuesday so Mozilla deserves credit for acting promptly on what might otherwise have been a potentially nasty problem that posed memory corruption and malware injection risks.

The latest update also corrects a performance issue that resulted in slow start-up on Windows systems.

Users are advised to apply the update, remembering to re-enable the Just-in-Time compiler in cases where Mozilla's previously suggested workaround has been applied. ®

Build a business case: developing custom apps

More from The Register

next story
NO MORE ALL CAPS and other pleasures of Visual Studio 14
Unpicking a packed preview that breaks down ASP.NET
KDE releases ice-cream coloured Plasma 5 just in time for summer
Melty but refreshing - popular rival to Mint's Cinnamon's still a work in progress
Leaked Windows Phone 8.1 Update specs tease details of Nokia's next mobes
New screen sizes, dual SIMs, voice over LTE, and more
Secure microkernel that uses maths to be 'bug free' goes open source
Hacker-repelling, drone-protecting code will soon be yours to tweak as you see fit
Mozilla keeps its Beard, hopes anti-gay marriage troubles are now over
Plenty on new CEO's todo list – starting with Firefox's slipping grasp
Apple: We'll unleash OS X Yosemite beta on the MASSES on 24 July
Starting today, regular fanbois will be guinea pigs, it tells Reg
HIDDEN packet sniffer spy tech in MILLIONS of iPhones, iPads – expert
Don't panic though – Apple's backdoor is not wide open to all, guru tells us
prev story

Whitepapers

Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
Backing up Big Data
Solving backup challenges and “protect everything from everywhere,” as we move into the era of big data management and the adoption of BYOD.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.