Security updates for Thursday

Security updates have been issued by Arch Linux (chromium and firefox), CentOS (bind, curl, fence-agents, kernel, librepo, libvirt, microcode_ctl, python, python3, qt and qt5-qtbase, resource-agents, and tomcat), Debian (drupal7, firefox-esr, jupyter-notebook, packer, python3.5, and rclone), Fedora (firefox), Mageia (firefox, nss), openSUSE (gdm, kernel-firmware, and moinmoin-wiki), Oracle (net-snmp), SUSE (libzypp, zypper), and Ubuntu (c-ares).