A vulnerability allows 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 exist in the parsing of the PackBitsRgn field (Opcode 0x0099). Due to improper handling of a malformed element in the structure, heap corruption occurs. If properly constructed this can lead to code execution running under the credentials of the user. QuickTime version 7.2 is affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/60699/ZDI-07-066.txt
Source: https://packetstormsecurity.com/files/60699/Zero-Day-Initiative-Advisory-07-066.html