This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple Quicktime. 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 Quicktime.qts. The stack buffer overflow occurs as a result of an unbounded string copy function in Quicktime.qts, reachable through the IQTPluginControl::SetLanguage COM method exposed by the COM object QTPlugin.ocx. This vulnerability can be leveraged to execute code under the context of the user.