This is opportune, since the next Critical Patch Update will be released on July 19. You need to ensure that you, and other members of your team involved with systems maintenance and security receive these alerts. If you don't already, you can subscribe to the alerts on Oracle technology network, OTN.
Go to http://otn.oracle.com
Login with your My Oracle Support credentials.
Scroll to the bottom of the page, and click on "Subscribe"
Subscribe to security alerts.
By the way, anyone on your team should have an OTN account, it doesn't cost anything and doesn't get you on a spam mailing list, and they don’t need to have a personal My Oracle Support account. There’s a wealth of information on OTN.
Critical Patch Updates and Security Alerts
A great resource!
RSS Feed: http://www.oracle.com/ocom/groups/public/@otn/documents/webcontent/rss-otn-sec.xml
(This is really useful, just add it to your favorite feed reader)
From CPU alert page you can navigate to a particular advisory, including historical information.
For additional reference see the following blogs:
http://blogs.oracle.com/peopletools (where you're probably reading this!)
See also: http://blogs.oracle.com/security
This is the Oracle security blog with great postings by people deeply involved in all aspects of security and the standards organizations.