Apple has dropped another mega-patch to cover a total of 58 documented vulnerabilities affecting the Mac OS X ecosystem. The majority of the flaws could allow a remote attacker to gain complete control of an unpatched system, meaning that this update carries an extremely critical rating It includes patches for open-source components like Apache and PHP and security holes in the QuickTime media player. A separate patch corrects a flaw that allows an attacker to use the TRACE HTTP method in the Apache Web server to conduct cross-site scripting attacks.
Source: https://threatpost.com/apple-plugs-58-holes-monster-mac-os-x-update-110909/73061/