Security updates for Wednesday

Security updates have been issued by Debian (expat), Fedora (php and vim), Mageia (cpanminus, expat, htmldoc, nodejs, polkit, util-linux, and varnish), Red Hat (389-ds-base, curl, kernel, kernel-rt, openldap, python-pillow, rpm, sysstat, and unbound), Scientific Linux (389-ds-base, kernel, openldap, and python-pillow), and Ubuntu (cyrus-sasl2, linux-oem-5.14, and php7.0).