The following updates has been released for Debian GNU/Linux 7 LTS:
DLA 1053-1: firefox-esr security updateFirefox / Libgxps / Zabbix / Libgd2 Updates for Debian
DLA 1054-1: libgxps security update
and the following for both Debian GNU/Linux 8 and 9:
DSA 3937-1: zabbix security update
DSA 3938-1: libgd2 security update