Security updates for Wednesday

Security updates have been issued by Arch Linux (powerdns-recursor and samba), Debian (ghostscript), Fedora (community-mysql, flatpak, gettext, git, php-PHPMailer, php-phpmailer6, and wireshark), Oracle (kernel and NetworkManager), Scientific Linux (ghostscript, kernel, NetworkManager, and sos-collector), SUSE (dpdk, java-1_7_1-ibm, kernel, python-oslo.cache, python-oslo.concurrency, python-oslo.db, python-oslo.log, python-oslo.messaging, python-oslo.middleware, python-oslo.serialization, python-oslo.service, python-oslo.utils, python-oslo.versionedobjects, python-oslo.vmware, python-oslotest, qemu, rubygem-loofah, tiff, tomcat, and util-linux), and Ubuntu (git, openjdk-8, openjdk-lts, samba, systemd, and webkit2gtk).