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HistorySep 19, 2012 - 12:00 a.m.

US-CERT Alert TA12-262A - Microsoft Security Advisory for Internet Explorer Exploit

2012-09-1900:00:00
vulners.com
32

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National Cyber Awareness System

US-CERT Alert TA12-262A
Microsoft Security Advisory for Internet Explorer Exploit

Original release date: September 18, 2012
Last revised: –

Systems Affected

 * Microsoft Internet Explorer 7
 * Microsoft Internet Explorer 8
 * Microsoft Internet Explorer 9

Overview

An unpatched use-after-free vulnerability in Microsoft Internet
Explorer versions 7, 8, and 9 is being exploited in the wild.
Microsoft has released Security Advisory 2757760 with mitigation
techniques.

Description

Microsoft Internet Explorer versions 7, 8, and 9 are susceptible to
a use-after-free vulnerability. This vulnerability is being
actively exploited in the wild. At this time, there is no patch
available for this vulnerability. End-users can mitigate the
vulnerability by using Microsoft's Enhanced Mitigation Experience
Toolkit.

Additional mitigation advice is available in the MSRC blog post:
"Microsoft Releases Security Advisory 2757760" and US-CERT
Vulnerability Note VU#480095.

Impact

A remote, unauthenticated attacker could execute arbitrary code,
cause a denial of service, or gain unauthorized access to your
files or system.

Solution

US-CERT recommends Internet Explorer users read Microsoft Security
Advisory 2757760 and apply mitigation techniques such as using the
Microsoft Enhanced Mitigation Experience Toolkit.

References

Revision History

September 18, 2012: Initial release


Feedback can be directed to US-CERT Technical Staff. Please send
email to <cert@cert.org> with "TA12-262A Feedback VU#480095" in
the subject.


Produced by US-CERT, a government organization.


This product is provided subject to this Notification:
http://www.us-cert.gov/privacy/notification.html

Privacy & Use policy:
http://www.us-cert.gov/privacy/

This document can also be found at
http://www.us-cert.gov/cas/techalerts/TA12-262A.html

For instructions on subscribing to or unsubscribing from this
mailing list, visit http://www.us-cert.gov/cas/signup.html
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