p5-Net-DNS -- multiple Vulnerabilities

A Secunia Advisory reports:

An error exists in the handling of DNS queries where IDs are
incremented with a fixed value and are additionally used for
child processes in a forking server. This can be exploited to
poison the DNS cache of an application using the module if a
valid ID is guessed.
An error in the PP implementation within the “dn_expand()”
function can be exploited to cause a stack overflow due to an
endless loop via a specially crafted DNS packet.