12.2.01 : Privileges to execute KILL SESSION in a PROCEDURE

Hello,

The user User1 must be able to execute a PROC_KILL_SESSION procedure that belongs to the TOOL schema.

This TOOL.PROC_KILL_SESSION procedure contains the following statement:

ALTER SYSTEM KILL SESSION ... IMMEDIATE;

What privs must be assigned to user USER1 in order to be able to execute the TOOL.PROC_KILL_SESSION procedure?

SQL> GRANT EXECUTE ON TOOL.PROC_KILL_SESSION TO USER1; ???

SQL> grant select on v_ $ session to USER1 is it necessary ???

Thank you.

GD.