The following updates has been released for Debian GNU/Linux:
Debian GNU/Linux 7 LTS:Unbound / Smarty3 / Thunderbird Updates for Debian
DLA 1264-1: unbound security update
Debian GNU/Linux 8:
DSA 4094-2: smarty3 security update
Debian GNU/Linux 8 and 9:
DSA 4102-1: thunderbird security update