Security updates for Friday

Security updates have been issued by CentOS (kernel), Debian (ark, openldap, and thunderbird), Fedora (freetype and vim), Oracle (.NET 5.0,.NET 6.0,.NET Core 3.1, container-tools:3.0, glibc, kernel, rsync, and subversion:1.10), Scientific Linux (kernel), SUSE (dcraw, firefox, glib2, ImageMagick, kernel-firmware, libxml2, libyajl, php7, ucode-intel, and unrar), and Ubuntu (openldap).