Feeds

Mozilla patches faulty patch

Cure worse than disease

Boost IT visibility and business value

The Mozilla Foundation has patched a faulty patch that was itself subject to a security vulnerability.

A security update for Firefox and the SeaMonkey application suite issued in mid-December left users open to a JavaScript-related privilege escalation flaw that meant hackers could commandeer vulnerable machines, Mozilla warned on Monday.

The security bug affecting Firefox 1.5.0.9 and 2.0.0.1 as well as SeaMonkey 1.0.7 meant code designed to fix earlier flaws introduced a critical vulnerability. This vulnerability, which allowed scripts from web content to execute arbitrary code, was arguably worse than the bugs it tried to resolve because simply disabling JavaScript does not protect against the flaw.

The December security update also covered the Thunderbird email client, but it wasn't affected because it doesn't execute JavaScript URIs in IMG tags, the specific mechanism behind the bug.

Mozilla urges users to upgrade to versions 1.5.0.10 or 2.0.0.2 of Firefox and versions version 1.1.1 or 1.0.8 of SeaMonkey. Many users will already be running these versions of the software, which were issued last week as a result of separate security problems.

The need to patch faulty security updates is a problem that periodically affects updates from Redmond, though it's something of a first for the Mozilla Foundation. ®

Gartner critical capabilities for enterprise endpoint backup

More from The Register

next story
Microsoft: We plan to CLEAN UP this here Windows Store town
Paid-for apps that provide free downloads? Really
Snowden on NSA's MonsterMind TERROR: It may trigger cyberwar
Plus: Syria's internet going down? That was a US cock-up
Who needs hackers? 'Password1' opens a third of all biz doors
GPU-powered pen test yields more bad news about defences and passwords
e-Borders fiasco: Brits stung for £224m after US IT giant sues UK govt
Defeat to Raytheon branded 'catastrophic result'
Hear ye, young cyber warriors of the realm: GCHQ wants you
Get involved, get a job and then never discuss work ever again
Chinese hackers spied on investigators of Flight MH370 - report
Classified data on flight's disappearance pinched
Microsoft cries UNINSTALL in the wake of Blue Screens of Death™
Cache crash causes contained choloric calamity
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.
7 Elements of Radically Simple OS Migration
Avoid the typical headaches of OS migration during your next project by learning about 7 elements of radically simple OS migration.
BYOD's dark side: Data protection
An endpoint data protection solution that adds value to the user and the organization so it can protect itself from data loss as well as leverage corporate data.
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.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?