Security updates for Tuesday

Security updates have been issued by Fedora (chromium, libproxy, mumble, and thunderbird), openSUSE (perl-DBI), Red Hat (qemu-kvm-rhev, rh-mariadb102-mariadb and rh-mariadb102-galera, rh-maven35-jackson-databind, spice and spice-gtk, and unbound), SUSE (gnutls, java-1_7_0-openjdk, openssl1, and perl-DBI), and Ubuntu (brotli, cyrus-imapd, openconnect, opendmarc, python-urllib3, ruby-rack-cors, spice, tika, and yaws).