Microsoft Internet Explorer CMarkup Object Use-After-Free Exploit (MS14-021) Update 3

Use-after-free vulnerability in Microsoft Internet Explorer 6 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via vectors related to the CMarkup::IsConnectedToPrimaryMarkup function, as exploited in the wild in April 2014. This update adds support for Internet Explorer 11.
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Thursday, January 29, 2015 - 00:00