Feeds

Bad hair day for alternative browser users

Critical Opera and Firefox bugs menace IE-refuseniks

The Power of One eBook: Top reasons to choose HP BladeSystem

There's bad news for users of alternative browsers this Friday, with both Opera and Firefox subject to security vulnerabilities.

A trio of faults in Opera create a means to construct cross-site scripting attacks and other mischief. The worst flaw of the bunch involves the possibility that external news readers or email clients might be used to inject hostile code onto vulnerable systems.

Providing a user has configured Opera to use an external newsgroup client or email application, maliciously crafted web pages taking advantage of the vulnerability might be created that can cause Opera to run that application incorrectly, potentially leading to the execution of arbitrary code.

Secondly, a bug in processing frames from different websites lends itself to cross-site scripting attacks.

There's bad news for users of Opera on Mac systems too. An unspecified error exists in Opera in combination with Adobe Flash Player 9.0.47.0 or earlier on Mac OS X machines.

All three bugs are addressed by upgrading to Opera version 9.24, as explained in a summary of the bugs by security notification firm Secunia.

Firefox users also need to upgrade. Version 2.0.0.8 of the popular open source browser fixes a number of vulnerabilities that might lend themselves to data exposure or system compromise risks. That's because both the browser and JavaScript engine of Firefox are subject to memory corruption bugs.

A separate error in displaying web pages written in the XUL markup language might be used to hide the window's title bar, a potentially useful trick for phishers.

Linux users also need to take note of the update. An error in the handling of "smb:" and "sftp:" URI schemes on certain Linux systems with gnome-vfs support creates a means to snoop on a user's files. Exploitation of this bug is far from trivial, but it's still worth knowing about.

Secunia has a useful summary of the various flaws here.

Users of Thunderbird, Firefox's email client, and Mozilla's SeaMonkey suite also need to upgrade as a result of the same bugs to versions 2.0.0.8 and 1.1.5, respectively. ®

Designing a Defense for Mobile Applications

More from The Register

next story
Mozilla fixes CRITICAL security holes in Firefox, urges v31 upgrade
Misc memory hazards 'could be exploited' - and guess what, one's a Javascript vuln
How long is too long to wait for a security fix?
Synology finally patches OpenSSL bugs in Trevor's NAS
Don't look, Snowden: Security biz chases Tails with zero-day flaws alert
Exodus vows not to sell secrets of whistleblower's favorite OS
Roll out the welcome mat to hackers and crackers
Security chap pens guide to bug bounty programs that won't fail like Yahoo!'s
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
Researcher sat on critical IE bugs for THREE YEARS
VUPEN waited for Pwn2Own cash while IE's sandbox leaked
Four fake Google haxbots hit YOUR WEBSITE every day
Goog the perfect ruse to slip into SEO orfice
prev story

Whitepapers

Designing a Defense for Mobile Applications
Learn about the various considerations for defending mobile applications - from the application architecture itself to the myriad testing technologies.
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.
Top 8 considerations to enable and simplify mobility
In this whitepaper learn how to successfully add mobile capabilities simply and cost effectively.
Seven Steps to Software Security
Seven practical steps you can begin to take today to secure your applications and prevent the damages a successful cyber-attack can cause.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.