Microsoft Edge DictionaryPropertyDescriptor:CopyFrom Type Confusion

This strike exploits a vulnerability in the Microsoft Edge browser. Specifically the vulnerability exists within the Javascript Chakra engine. An attacker can craft Javascript in such a way that the CopyFrom method does not copy all fields, including the IsShadowed field, from another descriptor to "this". This causes type confusion to occur, and can lead to a denial of service condition in the browser or potentially remote code execution.