    def dup
      session = super
      session.instance_variable_set :@options, options.dup

      if defined? @current_database
        session.send(:remove_instance_variable, :@current_database)
      end

      session
    end
The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.