FreeBSD-SA-20:26.dhclient : dhclient heap overflow

Versions Affected : All verisons prior to FreeNAS 11.3-U5

Description

dhclient(8) is the default IPv4 DHCP client used on FreeBSD. It is responsible for contacting DHCP servers on a network segment, and for initializing and configuring network interfaces and configuring name resolution based on received information.