Security updates for Thursday

Security updates have been issued by Debian (evolution-data-server and webkit2gtk), Fedora (kernel, snapd, and xen), openSUSE (thunderbird and xen), Oracle (dbus and thunderbird), Red Hat (java-1.8.0-openjdk, java-11-openjdk, jbig2dec, sane-backends, and thunderbird), Scientific Linux (kernel), SUSE (cairo, containerd, docker, docker-runc, golang-github-docker-libnetwork, google-compute-engine, mailman, mercurial, openconnect, openexr, and xrdp), and Ubuntu (libvpx and snapd).