Security updates for Friday

Security updates have been issued by Fedora (xorg-x11-server and xorg-x11-server-Xwayland), SUSE (aws-iam-authenticator, ldb, samba, libguestfs, samba, and u-boot), and Ubuntu (firefox, intel-microcode, libtirpc, linux, linux-aws, linux-kvm, linux-lts-xenial, linux-azure, linux-bluefield, linux-gcp-5.4, linux-gke-5.4, mysql-5.7, and mysql-5.7, mysql-8.0).