Feeds

Bad hair day for alternative browser users

Critical Opera and Firefox bugs menace IE-refuseniks

Beginner's guide to SSL certificates

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. ®

Choosing a cloud hosting partner with confidence

More from The Register

next story
SMASH the Bash bug! Apple and Red Hat scramble for patch batches
'Applying multiple security updates is extremely difficult'
Apple's new iPhone 6 vulnerable to last year's TouchID fingerprint hack
But unsophisticated thieves need not attempt this trick
Oracle SHELLSHOCKER - data titan lists unpatchables
Database kingpin lists 32 products that can't be patched (yet) as GNU fixes second vuln
Who.is does the Harlem Shake
Blame it on LOLing XSS terroristas
Researchers tell black hats: 'YOU'RE SOOO PREDICTABLE'
Want to register that domain? We're way ahead of you.
Stunned by Shellshock Bash bug? Patch all you can – or be punished
UK data watchdog rolls up its sleeves, polishes truncheon
Ello? ello? ello?: Facebook challenger in DDoS KNOCKOUT
Gets back up again after half an hour though
SHELLSHOCKED: Fortune 1000 outfits Bash out batches of patches
CloudPassage points to 'pervasive' threat of Bash bug
prev story

Whitepapers

Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.
Intelligent flash storage arrays
Tegile Intelligent Storage Arrays with IntelliFlash helps IT boost storage utilization and effciency while delivering unmatched storage savings and performance.
Beginner's guide to SSL certificates
De-mystify the technology involved and give you the information you need to make the best decision when considering your online security options.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.