dnrd -- remote buffer and stack overflow vulnerabilities

Natanael Copa reports that dnrd is vulnerable to a remote
buffer overflow and a remote stack overflow. These
vulnerabilities can be triggered by sending invalid DNS
packets to dnrd.
The buffer overflow could potentially be used to execute
arbitrary code with the permissions of the dnrd daemon.
Note that dnrd runs in an chroot environment and runs as
non-root.
The stack overflow vulnerability can cause dnrd to
crash.