Microsoft Internet Explorer CSVGMaskElement Double-Free Remote Code Execution Vulnerability

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 handling CSVGMaskElement objects. By manipulating a document’s elements an attacker can force a double free condition. An attacker can leverage this vulnerability to execute code under the context of the current process.