Security updates for Tuesday

Security updates have been issued by Debian (libapache-mod-jk and sleuthkit), Fedora (kernel, kernel-headers, mbedtls, php, php-symfony, php-symfony3, php-symfony4, and wireshark), openSUSE (pdns, pdns-recursor, and salt), Oracle (firefox and ghostscript), Red Hat (ansible, firefox, ghostscript, and kernel), Scientific Linux (firefox and ghostscript), and SUSE (ovmf).