Security updates for Friday

Security updates have been issued by Arch Linux (aspnet-runtime, aspnet-runtime-3.1, chromium, drupal, intel-ucode, nginx, opera, python-django, radare2, thefuck, and vivaldi), Debian (jetty9), Fedora (dogtag-pki and pki-core), openSUSE (htmldoc and postgresql10), Oracle (dhcp), SUSE (apache2, caribou, jetty-minimal, libxml2, postgresql12, python-PyJWT, python-rsa, python-urllib3, thunderbird, tpm2.0-tools, xstream, and xterm), and Ubuntu (grub2-signed, grub2-unsigned and libxml2).