Update or upgrade check on Red Hat Satellite fails with Signature not supported. Hash algorithm SHA1 not available message

Issue

satellite-maintain update check or satellite-maintain upgrade check on Red Hat Satellite 6.16 fails with the following error.

# satellite-maintain update check
Checking for new version of satellite-maintain...
warning: Signature not supported. Hash algorithm SHA1 not available.
Nothing to update, can't find new version of satellite-maintain.
/usr/share/rubygems/rubygems/version.rb:214:in `initialize': Malformed version number string warning: Signature not supported. Hash algorithm SHA1 not available. (ArgumentError)
6.16.0.1