Security updates for Wednesday

Security updates have been issued by Debian (composer, hivex, lz4, and rails), Fedora (chromium, community-mysql, djvulibre, dom4j, firefox, php, php-phpmailer6, python-django, and redis), Mageia (mariadb, nagios, and pngcheck), openSUSE (opera, syncthing, and vlc), SUSE (kernel, openvpn, openvpn-openssl1, shim, and xen), and Ubuntu (flatpak, linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.8, linux-kvm, linux-oracle, linux-raspi, linux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-oracle, linux-raspi, linux, linux-aws, lnux-aws-hwe, linux-azure, inux-azure-4.15, linux-dell300x, linux-gcp, linux-hwe, linux-gcp-4.15, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon, linux-oem-5.10, linux-oem-5.6, and mariadb-10.1, mariadb-10.3, mariadb-10.5).