Feeds

Mozilla swats Firefox zero-day bug a week early

Have that, German government

Intelligent flash storage arrays

Mozilla has plugged a critical unpatched cross-platform vulnerability in Firefox a week ahead of its previously announced schedule.

Firefox 3.6.2 fixes a flaw first discovered by security researcher Evgeny Legerov last month, and confirmed by Mozilla last week.

The zero-day vulnerability - now identified as an integer overflow flaw involving the WOFF font decoder used by the latest version of Firefox - created a means for hackers to distribute malware via drive by download attacks from maliciously constructed sites, providing vulnerable marks were using Firefox version 3.6. Early versions of the open source browser do not use the vulnerable WOFF decoder technology, and are therefore immune from the bug.

Exploit code was available though not in the "weaponised" form beloved by script kiddies - instead the exploit was available as an add-on to the Immunity Canvas automated exploitation system.

Mozilla originally promised an update on 30 March in an advisory last Thursday, offering a beta version of Firefox 3.6.2 as an alternative for those disinclined to wait it out. That wasn't good enough for the German government's BürgerCERT security response team, which advised users on Monday to avoid Firefox 3.6 until a fix was available.

Possibly prompted by this slap in the chops, Mozilla released a full version of the latest version of the browser on Monday night. An absence of problems related to the beta version of 3.6.2 in the four days since its release cleared the passage for the release of the update to the open source browser.

Release notes for Firefox 3.6.2 can be found on Mozilla's website here. ®

Intelligent flash storage arrays

More from The Register

next story
Regin: The super-spyware the security industry has been silent about
NSA fingered as likely source of complex malware family
Why did it take antivirus giants YEARS to drill into super-scary Regin? Symantec responds...
FYI this isn't just going to target Windows, Linux and OS X fans
Privacy bods offer GOV SPY VICTIMS a FREE SPYWARE SNIFFER
Looks for gov malware that evades most antivirus
Home Office: Fancy flogging us some SECRET SPY GEAR?
If you do, tell NOBODY what it's for or how it works
HACKERS can DELETE SURVEILLANCE DVRS remotely – report
Hikvision devices wide open to hacking, claim securobods
'Regin': The 'New Stuxnet' spook-grade SOFTWARE WEAPON described
'A degree of technical competence rarely seen'
Syrian Electronic Army in news site 'hack' POP-UP MAYHEM
Gigya redirect exploit blamed for pop-rageous ploy
Astro-boffins start opening universe simulation data
Got a supercomputer? Want to simulate a universe? Here you go
prev story

Whitepapers

Designing and building an open ITOA architecture
Learn about a new IT data taxonomy defined by the four data sources of IT visibility: wire, machine, agent, and synthetic data sets.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
5 critical considerations for enterprise cloud backup
Key considerations when evaluating cloud backup solutions to ensure adequate protection security and availability of enterprise data.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Protecting users from Firesheep and other Sidejacking attacks with SSL
Discussing the vulnerabilities inherent in Wi-Fi networks, and how using TLS/SSL for your entire site will assure security.