Remote exploitation of a heap corruption vulnerability in Microsoft Corp.'s Internet Explorer web browser allows attackers to execute arbitrary code in the context of the current user.
Exploitation of this vulnerability would allow an attacker to execute arbitrary code in the context of the user running Internet Explorer.
In order to exploit this vulnerability, an attacker must persuade a user to render a malicious web page using Internet Explorer. This is usually accomplished by providing a link to the malicious page in an e-mail or instant message.
On Windows Vista, Internet Explorer 7 runs in "Protected Mode". Since "Protected Mode" processes web pages with lower privileges than a normal user, it lessens the impact of this vulnerability. However, it does not prevent arbitrary code execution on the affected system.
As of April 5th, 2007, iDefense testing shows that Internet Explorer 6.0 and Internet Explorer 7.0 with all available security patches are vulnerable. Older versions of Internet Explorer may also be vulnerable.
Microsoft has addressed this vulnerability within Microsoft Security Bulletin MS07-069. For more information, consult their bulletin at the following URL.
The Common Vulnerabilities and Exposures (CVE) project has assigned the name CVE-2007-3902 to this issue. This is a candidate for inclusion in the CVE list (http://cve.mitre.org/), which standardizes names for security problems.
05/08/2007 Initial vendor notification
05/08/2007 Initial vendor response
12/11/2007 Coordinated public disclosure
This vulnerability was reported to iDefense by Peter Vreugdenhil (firstname.lastname@example.org).
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