Security updates for Monday

Security updates have been issued by Debian (chromium, drupal7, gpsd, libav, libdatetime-timezone-perl, php5, rails, thunderbird, twig, tzdata, and wordpress), Fedora (edk2, flatpak, fuse, ghostscript, gnutls, golang-googlecode-go-crypto, grub2, mxml, poppler, and systemd), Mageia (file, kernel, live, mplayer, vlc, openjpeg2, pdns, and poppler), openSUSE (containerd, docker, docker-runc, golang-github-docker-libnetwork, runc, kernel, ovmf, and ucode-intel), SUSE (adcli, sssd, GraphicsMagick, kernel, liblouis, libssh2_org, nodejs6, openssl, ovmf, SDL, sysstat, tiff, various KMPs, and xen), and Ubuntu (dovecot and gpac).