Microsoft has confirmed it plans to release a fix for a serious security bug in Internet Explorer next Tuesday (11 April). The fix for the "CreateTextRange" vulnerability - which has become the subject of hacker exploits over recent days - will be released as a cumulative update to Internet Explorer along with four other security bulletins (details here).
Late last month, numerous maliciously constructed websites began attempting to exploit the "CreateTextRange" vulnerability to install Trojans, botnet clients and other forms on malware on victim PCs. This malicious activity, together with the lack of an immediate fix from Microsoft, prompted two security firms (Determina and eEye Digital Security) to each issue standalone patches to mitigate the risk of attack. Microsoft advised orgainsations to disable Active Scripting as a workaround.
Internet Explorer has become the subject of a number of unpatched vulnerabilities over recent weeks. In the latest such incident, security notification firm Secunia warned this week of an unpatched flaw in IE that might be used to spoof the address bar in a browser. Because of this behaviour, the bug might be used to make phishing attacks more convincing. ®