Mozilla has confirmed a potentially serious flaw in its open source Firefox browser.
Developer Michal Zalewski, who uncovered the flaw, described it as " seemingly pretty nasty, and apparently easily exploitable".
The vulnerability affects current versions of Firefox for all major PC platforms, according to Zalewski's report.
The use of a certain JavaScript instruction can cause Firefox to crash, allowing an attacker complete access to a system and the ability to run malware remotely. More at Vnunet