The updates, which are released on a three monthly schedule, had been due for release on 13 October, in the middle of Oracle's showcase event. They're now due on 20 October.
Oracle announced the change on its Web site, saying it was moving the patches back because "many Oracle customers with responsibility for deploying the Critical Patch Update within their respective organizations will be attending Oracle OpenWorld."
The database vendor plans to release its advance notification information, detailing which products will be affected by the updates, a week later than expected too. It's due on 15 October.
Admins responsible for Windows systems will still have some work to do during the conference, however. Microsoft is expected to release its set of security updates for October, on the 13th of the month.