Microsoft Internet Explorer CAttrArray Use-After-Free Remote Code Execution Vulnerability

2016-02-09T00:00:00
ID ZDI-16-159
Type zdi
Reporter 003
Modified 2016-11-09T00:00:00

Description

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Internet Explorer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the usage of CAttrArray objects. By manipulating a document's elements an attacker can force a CAttrArray object in memory to be reused after it has been freed. An attacker can leverage this vulnerability to execute code under the context of the current process.