Yahoo! Messenger AudioConf ActiveX Control Buffer Overflow Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Yahoo Messenger. User interaction is required to exploit this vulnerability in that the target must visit a malicious page. The specific flaw exists within the ActiveX control Yahoo.AudioConf: DLL: yacscom.dllCLSID: 2B323CD9-50E3-11D3-9466-00A0C9700498 When large values are specified for the ‘socksHostname’ and ‘hostname’ properties, and the createAndJoinConference() method is called, a stack overflow occurs. Exploitation can result in code execution under the context of the current user.