The vulnerability is reported in version 188.8.131.52 of the popular open source browser. Earlier versions may also be affected. Surfers are advised to update to version 184.108.40.206. Mozilla's security advisory can be found here.
In other browser security news, Apple pushed out an update for its Safari web browser on Wednesday. Both Windows and Apple versions of the browser need patching, though for different reasons.
Safari version 3.1.1 addresses a brace of WebKit vulnerabilities that affect computers running Mac OS X or Mac OS X Server. Left unchecked, the duo of flaws create a means for hackers to crash browsers or inject malicious code onto vulnerable machines, providing users can be tricked into visiting maliciously-constructed websites.
Vista and XP users need patching against these flaws and a brace of other vulnerabilities specific to Windows machines, involving memory corruption and a less serious timing issue in Safari 3.1.
Both Windows and Apple users of Safari need to update to Safari version 3.1.1, as explained in an advisory from Apple here. ®