The following updates has been released for Debian GNU/Linux:
Debian GNU/Linux 8 LTS:Roundcube, XML-Secruity-C, phpBB3 Updates for Debian
DLA 1593-1: phpbb3 security update
DLA 1594-1: xml-security-c security update
Debian GNU/Linux 9:
DSA 4344-1: roundcube security update
