Verified in Satellite 6.3 snap 11
I was able to create a new user with view_subscriptions permission and access the subscriptions page. See attached screenshots.
Created attachment 1314022 [details]
Created attachment 1314024 [details]
Created attachment 1314026 [details]
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://access.redhat.com/errata/RHSA-2018:0336