The plural form formula in ngettext family of calls in php-gettext before 1.0.12 allows remote attackers to execute arbitrary code.
https://lwn.net/Alerts/708838/
https://launchpad.net/php-gettext/trunk/1.0.12
https://bugzilla.redhat.com/show_bug.cgi?id=1367462
http://www.securityfocus.com/bid/95754
http://www.openwall.com/lists/oss-security/2017/01/18/4
http://lists.opensuse.org/opensuse-updates/2017-02/msg00015.html