This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Adobe Flash. 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 handling of AS2 DefineFunction atoms. A specially crafted SWF file with custom AS2 DefineFunction atoms can force an invalid free condition. An attacker can leverage this vulnerability to execute arbitrary code under the context of the current process.