iDefense Security Advisory 12.14.10 - Remote exploitation of a memory corruption vulnerability in Microsoft Corp.'s Internet Explorer could allow an attacker to execute arbitrary code with the privileges of the current user. During the instantiation of multiple ActiveX Controls, a particular object is created along with multiple references that point to the object. The object can be destroyed and its associated references removed. However, a reference can incorrectly remain pointing to the object. The invalid object resides in uninitialized memory, which the attacker may control to gain arbitrary execution control. Microsoft Internet Explorer 6, 7 and 8 are vulnerable.
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