Security updates for Tuesday

Security updates have been issued by Fedora (cflow, chromium, eterm, gnutls, and kernel), Mageia (kernel and kernel-linus), Oracle (glib2), Red Hat (glib2, kernel, kernel-rt, and kpatch-patch), SUSE (curl, djvulibre, gstreamer, gstreamer-plugins-bad, gstreamer-plugins-base, gstreamer-plugins-good, gstreamer-plugins-ugly, nginx, python-httplib2, and slurm), and Ubuntu (gupnp, libwebp, postgresql-10, postgresql-12, postgresql-13, and python3.8).