Firefox releases update to fix severe vulnerability

Share this article:
Firefox late Thursday released an update to its web browser to resolve a major JavaScript vulnerability.

Firefox version 3.5.1 fixes the "critical" flaw, revealed Tuesday by vulnerability tracking firm Secunia and which arises when the browser processes JavaScript code to handle HTML font tags. An exploit could cause a memory corruption buffer overflow, leading to the installation of malware on a compromised system.

Soon after the flaw was disclosed, an exploit based on the Metasploit framework began circulating in the wild, the SANS Internet Storm Center said Tuesday in a blog post.

If the patch cannot be applied immediately, users still running version 3.5 and below can apply a workaround for the vulnerability by disabling the Just-in-Time compiler, used to increase the runtime performance of Java, according to a Mozilla advisory.

More than 20 other minor bugs also were fixed in the update, according to Mozilla. It can be downloaded here.
Share this article:
You must be a registered member of SC Magazine to post a comment.

Sign up to our newsletters

TOP COMMENTS

More in News

FBI to open Malware Investigator portal to security researchers

The portal is a virus analysis tool that examines suspicious files and shares information about them.

Android bug allowing SOP bypass farther reaching than initially thought

Researchers found that 42 out of the top 100 apps in the Google Play store with 'browser' in their names were vulnerable.

SUPERVALU and AB Acquisition LLC report being breached again

SUPERVALU and AB Acquisition LLC report being breached ...

The breaches involved different malware and both companies are investigating whether payment card information was stolen.