The following updates has been released for both Oracle Linux 6 and 7:
ELSA-2018-0101 Important: Oracle Linux 6 bind security updateBind / Microcode Updates for Oracle Linux 6 / 7
ELSA-2018-0102 Important: Oracle Linux 7 bind security update
ELSA-2018-4018 Important: Oracle Linux 7 microcode_ctl security update
ELSA-2018-4019 Important: Oracle Linux 6 microcode_ctl security update