Information
The SYSIBM.SYSDEPENDENCIES table contains the dependency of one object on another, such as a row permission or column mask on some other object. It is recommended that the PUBLIC role be restricted from accessing this table.
Rationale:
Any databases created without the RESTRICT option automatically GRANT the SELECT privilege to PUBLIC for SYSIBM tables. Therefore, it is strongly recommended to explicitly REVOKE the SELECT privilege on the SYSIBM.SYSDEPENDENCIES table from PUBLIC to reduce risk to the organization's data.
Solution
Perform the following to revoke access from PUBLIC.
Connect to the Db2 database.
db2 => connect to <dbname>
Run the following command:
db2 => REVOKE SELECT ON SYSIBM.SYSDEPENDENCIES FROM PUBLIC