Security updates for Wednesday

Security updates have been issued by Arch Linux (elasticsearch and logstash), CentOS (java-1.8.0-openjdk, kernel, and polkit), Debian (chromium, exiv2, and phpmyadmin), Fedora (java-1.8.0-openjdk-aarch32 and mgetty), openSUSE (docker-runc, gvfs, qemu, systemd, and thunderbird), Oracle (java-1.8.0-openjdk, kernel, and polkit), Red Hat (polkit), Scientific Linux (java-1.8.0-openjdk, kernel, and polkit), Slackware (openssl), SUSE (amavisd-new, apache2, ceph, containerd, docker, docker-runc, golang-github-docker-libnetwork, runc, openssh, and webkit2gtk3), and Ubuntu (firefox and thunderbird).