Package installation or update fails with '[Errno 14] PYCURL ERROR 77 - "Problem with the SSL CA cert (path? access rights?)"'

Issue

• When installing subscription-manager the transaction fails with the below:

  https://cdn.redhat.com/content/eus/rhel/server/6/6Server/x86_64/optional/os/repodata/repomd.xml: [Errno 14] PYCURL ERROR 77 - "Problem with the SSL CA cert (path? access rights?)"
  Trying other mirror.
  https://cdn.redhat.com/content/dist/rhel/server/6/6Server/x86_64/optional/os/repodata/repomd.xml: [Errno 14] PYCURL ERROR 77 - "Problem with the SSL CA cert (path? access rights?)"
  Trying other mirror.
  https://cdn.redhat.com/content/dist/rhel/server/6/6Server/x86_64/os/repodata/repomd.xml: [Errno 14] PYCURL ERROR 77 - "Problem with the SSL CA cert (path? access rights?)"
  Trying other mirror.
  https://cdn.redhat.com/content/dist/rhel/server/6/6Server/x86_64/devtoolset/os/repodata/repomd.xml: [Errno 14] PYCURL ERROR 77 - "Problem with the SSL CA cert (path? access rights?)"
  Trying other mirror.
  https://cdn.redhat.com/content/dist/rhel/server/6/6Server/x86_64/devtoolset/2/os/repodata/repomd.xml: [Errno 14] PYCURL ERROR 77 - "Problem with the SSL CA cert (path? access rights?)"
  Trying other mirror.
  http://packages.vmware.com/tools/esx/4.1/rhel6/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 503 Service Unavailable"
  Trying other mirror.
  repo id                                              repo name                                                                                status
  rhel-x86_64-server-6                                 Red Hat Enterprise Linux Server (v. 6 for 64-bit x86_64)                                 19,500
  vmware-tools                                         VMware Tools                                                                                  0
  repolist: 19,500
  

• yum install subscription-manager-migration subscription-manager-migration-data fails due to CA certificate

• yum check-update fails with the following:

＃yum check-update
Loaded plugins: changelog, product-id, refresh-packagekit, security, subscription-manager
https://cdn.redhat.com/content/dist/rhel/server/6/6Server/x86_64/cf-tools/1/os/repodata/repomd.xml: [Errno 14] PYCURL ERROR 77 - "Problem with the SSL CA cert (path? access rights?)"
Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for repository: rhel-6-server-cf-tools-1-rpms. Please verify its path and try again

• I can not migrate from RHN to RHSM