Security updates for Thursday

Security updates have been issued by Fedora (kde-connect, mingw-SDL2_image, SDL2_image, and subscription-manager), Red Hat (flash-plugin), SUSE (openssh-openssl1, systemd, and thunderbird), and Ubuntu (kernel, linux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-oem, linux-raspi2, linux, linux-aws, linux-gcp, linux-kvm, linux-raspi2, linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon, linux-azure, linux-hwe, linux-azure, linux-gcp, linux-lts-trusty, linux-lts-xenial, linux-aws, postgresql-10, and python2.7).