According to the Debian advisory, bind8 is vulnerable but unfixable, bind9 is vulnerable and
fixed, and PowerDNS, MaraDNS and Unbound are not vulnerable. The "GNU libc stub resolver",
whatever that is, is also unfixable.
Missing from this list is dnsmasq, which is running on my WRT54G. My understanding is that
because this is not a _recursive_ DNS server, it doesn't have a problem. Is that right? In
that case the suggestion that "all name servers should be patched" is a bit OTT, right?