You can search for and download the latest patches for your installation from My Oracle Support.
You can check for the latest patches available for your Oracle Fusion Middleware product or component by registering and logging in to My Oracle Support at:
http://support.oracle.com
After you log in to My Oracle Support, click the Patches and Updates tab, which provides various tools that allow you to quickly locate the patches most important to your Oracle software installation.
Note:
It is important that you review the README file that is included with each patch. The README file includes important information about the requirements and procedures for applying the patch.