Security updates for Thursday

Security updates have been issued by Debian (libgc and pjproject), Fedora (cobbler, mingw-openjpeg2, and openjpeg2), Mageia (openvpn), openSUSE (abcm2ps, fish3, icingaweb2, kernel-firmware, nextcloud, openSUSE-build-key, python2-numpy, salt, and zlib), Slackware (vim), SUSE (kernel-firmware, opensc, python2-numpy, python3, salt, and zlib), and Ubuntu (dosbox, linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.13, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux, linux-aws, linux-azure-4.15, linux-dell300x, linux-hwe, linux-kvm, linux-snapdragon, rsync, twisted, and zlib).