Apple this week released an update to its QuickTime multimedia player to fix 15 vulnerabilities that may allow an attacker to execute arbitrary code or obtain sensitive information, according to a security advisory. QuickTime 7.6.9 is available for machines running Mac OS X 10.5 (Leopard) and Windows 7, Vista, and XP SP 2 or later. The vulnerabilities, which could be exploited by tricking a user into viewing a maliciously crafted video or image file, already were fixed in Snow Leopard, with the Mac OS X 10.6.5 update that was released in November. — AM