(Pwn2Own) Apple Safari Out-Of-Bounds Write Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Apple Safari. 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 B3 JIT compiler. By performing actions in JavaScript, an attacker can trigger a write past the end of an allocated data structure. An attacker can leverage this vulnerability to execute code in the context of the current process.