Microsoft Security Advisory (2757760): Vulnerabil​ity in Internet Explorer

Question

Vulnerability in Internet Explorer Could Allow Remote Code Execution
Microsoft is investigating public reports of a vulnerability in Internet Explorer 6, Internet Explorer 7, Internet Explorer 8, and Internet Explorer 9. Internet Explorer 10 is not affected. Microsoft is aware of targeted attacks that attempt to exploit this vulnerability.
A remote code execution vulnerability exists in the way that Internet Explorer accesses an object that has been deleted or has not been properly allocated. The vulnerability may corrupt memory in a way that could allow an attacker to execute arbitrary code in the context of the current user within Internet Explorer. An attacker could host a specially crafted website that is designed to exploit this vulnerability through Internet Explorer and then convince a user to view the website.
On completion of this investigation, Microsoft will take the appropriate action to protect our customers, which may include providing a solution through our monthly security update release process, or an out-of-cycle security update, depending on customer needs.
Article including some suggested actions is continued here: http://technet.microsoft.com/en-us/security/adviso​ry/2757760
Related: http://nakedsecurity.sophos.com/2012/09/17/new-ie-​zero-day-exploit-poison-ivy/
ThinkPad: T530 / X1 Gen 2 / Helix - Yoga: Tablet 2 Pro (Win) / Yoga 3 Pro
If you find a post helpful and it answers your question, please click the "Accept As Solution" button.
Lenovo Advocate ~ I am not employed by Lenovo or Microsoft. I am a volunteer.
Microsoft MVP - Consumer Security
SpywareHammer

Answer 1

The suggested setting in EMET for IE is to be protected against ALL the available exploits --- that is to say, including Mandatory ASLR as well as BottomUpASLR.   Unless you experience an issue with it [and the EMET Notifier should advise you of any problems it encounters], there's no reason to "generically" turn-off MandatoryASLR.
Having said that, here are the common exceptions people need to be aware of:
1) Windows Media Player users should UNcheck Mandatory ASLR for their Windows Media Player.
2) Skype users should UNcheck EAF for their Skype.
3) Some versions of Trusteer Rapport are having trouble with Microsoft EMET - web browsers do not open at all or open a blank, unusable window. In such case, Windows XP users should UNcheck EAF protection for each of their web browsers; and Windows Vista and 7 users should UNcheck Mandatory ASLR protection for each of their web browsers.
4) Configuring the system setting for DEP changes a boot option for Windows. For systems using BitLocker, this will cause BitLocker to detect that “system boot information has changed” and you will be forced to enter your recovery key the next time you boot Windows. It is highly recommended that you have your recovery key ready before changing the system configuration setting for DEP on a system with BitLocker enabled.
Windows 7 Pro SP1 (64-bit), avast! V7 Free, MBAM Pro, Windows Firewall, EMET, OpenDNS Family Shield, IE9 & Firefox (both using WOT & KeyScrambler), MVPS HOSTS file, SpywareBlaster, WinPatrol PLUS, SAS (on-demand scanner), Secunia PSI.
[I am experimenting with Sandboxie, and believe computer-users who sandbox are acting prudently.]