Security updates for Tuesday

Security updates have been issued by Fedora (glibc, qemu, and tmux), Mageia (messagelib), Oracle (ghostscript), Red Hat (ghostscript, OpenShift Container Platform 3.10, OpenShift Container Platform 3.11, OpenShift Container Platform 3.2, OpenShift Container Platform 3.3, OpenShift Container Platform 3.4, OpenShift Container Platform 3.5, OpenShift Container Platform 3.6, and OpenShift Container Platform 3.8), Slackware (mozilla), and Ubuntu (linux, linux-gcp, linux-kvm, linux-raspi2, linux-hwe, linux-gcp, perl, and poppler).