The Oracle checklist is based around the SANS Oracle security step-by-step guide and reflects the thinking and research of many Oracle experts who know how to secure Oracle databases. The document for Oracle has just been updated to version 2.0 to reflect the changes made in the newly released version of the step-by-step book. I was the author of the book and the S.C.O.R.E. document and I am also just been appointed as the lead developer / maintainer of the checklist by SANS.
The Oracle S.C.O.R.E. checklist can be found here