Microsoft warns on IE browser bug

Microsoft has issued a warning about a serious vulnerability in all versions of its Internet Explorer (IE) browser, BBC New reported.

If exploited by a booby-trapped webpage the bug would allow attackers to take control of an unprotected computer.

Code to exploit the bug has already been published though Microsoft said it had no evidence it was currently being used by hi-tech criminals.

A workaround for the bug has been produced while Microsoft works on a permanent fix.

The bug revolves around the way that IE manages a computer's memory when processing Cascading Style Sheets - a widely used technology that defines the look and feel of pages on a website.

Hi-tech criminals have long known that they can exploit IE's memory management to inject their own malicious code into the stream of instructions a computer processes as a browser is being used. In this way the criminals can get their own code running and hijack a PC.

Microsoft has produced updates that improves memory management but security researchers discovered that these protection systems are not used when some older parts of Windows are called upon.