Quartz Composer on Apple Mac OS X 10.4.10 does not initialize a certain object pointer, which might allow user-assisted remote attackers to execute arbitrary code via a crafted Quartz Composer file.
https://exchange.xforce.ibmcloud.com/vulnerabilities/35737
http://www.vupen.com/english/advisories/2007/2732
http://www.securityfocus.com/bid/25159
http://secunia.com/advisories/26235
http://lists.apple.com/archives/security-announce//2007/Jul/msg00004.html