Security updates for Wednesday

Security updates have been issued by Debian (ffmpeg and linux-5.10), Fedora (libksba, openssl, and php), Gentoo (openssl), Mageia (curl, gdk-pixbuf2.0, libksba, nbd, php, and virglrenderer), Red Hat (kernel, kernel-rt, libksba, and openssl), SUSE (gnome-desktop, hdf5, hsqldb, kernel, nodejs10, openssl-3, php7, podofo, python-Flask-Security, python-lxml, and xorg-x11-server), and Ubuntu (backport-iwlwifi-dkms, firefox, ntfs-3g, and openssl).