We have some critical updates to dnsmasq sitting in bodhi. Please take
a look at
https://bodhi.fedoraproject.org/updates/?packages=dnsmasq and
test.
If you are feeling ambitious, try the proof-of-concept exploits here
https://security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp...
and verify the fixes.
--
Matthew Miller
<mattdm(a)fedoraproject.org>
Fedora Project Leader