Vulnerability Note VU#969969 Title: Apple Macintosh OS X VideoConference SIP heap buffer overflow Original Release Date: 2007-04-20 Last Revised: 2007-04-20 CVE ID: CVE-2007-0746 Severity Metric: 0.73 Vendor: Apple Computer, Inc. (Affected) Overview The Apple VideoConference framework contains a buffer overflow vulnerability. If exploited, this vulnerability may allow an attacker to execute code. Description Apple's VideoConference framework is used in iChat and other applications to stream video. iChat uses SIP to make and receive VoIP calls. The VideoConference framework contains a heap buffer overflow vulnerability. An attacker may be able to exploit this vulnerability by sending a specially crafted SIP packet during the initialization of a VoIP session. Impact A remote, unauthenticated attacker may be able to execute arbitrary code. Solution Apple has addressed this issue in Security Update 2007-004. References http://docs.info.apple.com/article.html?artnum=305391 http://manuals.info.apple.com/en/Welcome_to_Mac_OS_X_v10.4_Tiger.pdf http://en.wikipedia.org/wiki/Session_Initiation_Protocol Acknowledgements Thanks to Apple for information that was used in this report. This document was written by Ryan Giobbi.