(RHSA-2019:4358) Important: openstack-keystone security update

The OpenStack Identity service (keystone) authenticates and authorizes
OpenStack users by keeping track of users and their permitted activities.
The Identity service supports multiple forms of authentication, including
user name and password credentials, token-based systems, and AWS-style
logins.

Security Fix(es):

• Credentials API allows non-admin to list and retrieve all users
  credentials (CVE-2019-19687)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page listed in the References section.