We need to backport https://github.com/ManageIQ/manageiq/pull/13419 first. Then we can backport this one (https://github.com/ManageIQ/manageiq/pull/13134#issuecomment-271810490) as well.
This shall be backported via https://github.com/ManageIQ/manageiq/pull/13554
Verified in 5.7.1
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHSA-2017-0320.html