This indicates an attempt to exploit a buffer-overflow vulnerability in Apple QuickTime.
The vulnerability occurs when processing "panorama sample atoms" in QuickTime Virtual Reality (QTVR) movie files. A remote attacker can exploit this vulnerability by tricking the target user into opening a crafted movie file. Successful exploitation may lead to arbitrary code execution in the security context of the logged in user.
Apple Computer - Mac OS X (10.3.9)
Apple Computer - Mac OS X (10.4.9)
Apple Computer - Mac OS X (10.5)
Apple Computer - Quicktime (prior to 7.3)
System Compromise: Remote attackers can gain control of vulnerable systems.
Update to version 7.3.
QuickTime 7.3 for Leopard:
QuickTime 7.3 for Tiger:
QuickTime 7.3 for Panther:
QuickTime 7.3 for Windows: