Security updates for Thursday

Security updates have been issued by CentOS (wpa_supplicant), Debian (db, db4.7, db4.8, graphicsmagick, imagemagick, nss, and yadifa), Fedora (ImageMagick, rubygem-rmagick, and upx), Mageia (flash-player-plugin, libxfont, openvpn, ruby, webmin, and wireshark), openSUSE (cacti, git, and upx), Oracle (wpa_supplicant), Red Hat (kernel-rt, rh-nodejs4-nodejs-tough-cookie, rh-nodejs6-nodejs-tough-cookie, and wpa_supplicant), Scientific Linux (wpa_supplicant), and Slackware (libXres, wpa_supplicant, and xorg).