I would be inclined to lower the priority of this bug. It seems that is only due to creating rules which rely on DNS, so it seems more of a known issue territory than grave security issue.
Plus the poster hasn't replied in almost 2 months now, and the package is currently not available in testing because of this. Best -- Salvo Tomaselli "Io non mi sento obbligato a credere che lo stesso Dio che ci ha dotato di senso, ragione ed intelletto intendesse che noi ne facessimo a meno." -- Galileo Galilei http://ltworf.github.io/ltworf/