What is an Oracle security patch? How to apply Oracle security patches on different platforms (Windows 2003 Server, Unix, Sun Solaris)?
An Oracle Critical Patch Update, or CPU, is a quarterly patch issued by Oracle to its customers to fix known bugs that are critical in nature. These patches can be downloaded from
, which is Oracle's support Web site. To register for Metalink, you will need a valid Support Identifier (CSI). CSI numbers are unique support identifiers given to each customer with a current support contract.
You must download the appropriate CPU for your operating system as they are specific to each platform and Oracle product (database, application server, etc.). With each download, there are specific instructions on how to apply the patch.
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