Feeds

Remote execution flaw mars older Thunderbird versions

Mozilla's email add-on blues

The essential guide to IT transformation

Developers of the Thunderbird email client are in the process of patching a vulnerability that could allow attackers to remotely execute malicious code on end users' machines, security researchers said.

The flaw resides in the dtoa implementation of version 2.0.0.23 of Thunderbird, according to an advisory issued Friday by SecurityReason. The vulnerability mostly affects programs that are running various add-ons, including Lightning 0.9 and Thunderbrowse 3.2.6.7.

"We can create any number of float, which will overwrite the memory," the advisory states. "In Kmax has defined 15. Functions in dtoa, don't checks Kmax limit, and it is possible to call 16<= elements of freelist array."

A spokesman for Mozilla Messaging, the outfit that develops Thunderbird, said clients that don't run add-ons aren't vulnerable.

The bug has been fixed in the recently released version 3 of the email client and will also be patched in the upcoming version 2.0.0.24. The spokesman said it was unclear when it would be released and advised users to install Thunderbird 3.

It's been three days since the official release of that updated program, and there are relatively few reports of problems in the official support forum for the app. Now may be the time to upgrade. ®

5 things you didn’t know about cloud backup

More from The Register

next story
Goog says patch⁵⁰ your Chrome
64-bit browser loads cat vids FIFTEEN PERCENT faster!
Chinese hackers spied on investigators of Flight MH370 - report
Classified data on flight's disappearance pinched
KER-CHING! CryptoWall ransomware scam rakes in $1 MEEELLION
Anatomy of the net's most destructive ransomware threat
NIST to sysadmins: clean up your SSH mess
Too many keys, too badly managed
Scratched PC-dispatch patch patched, hatched in batch rematch
Windows security update fixed after triggering blue screens (and screams) of death
Researchers camouflage haxxor traps with fake application traffic
Honeypots sweetened to resemble actual workloads, complete with 'secure' logins
prev story

Whitepapers

Gartner critical capabilities for enterprise endpoint backup
Learn why inSync received the highest overall rating from Druva and is the top choice for the mobile workforce.
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.
Rethinking backup and recovery in the modern data center
Combining intelligence, operational analytics, and automation to enable efficient, data-driven IT organizations using the HP ABR approach.
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.
Next gen security for virtualised datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.