More information about this security flaw is available in the following bug: https://bugzilla.redhat.com/show_bug.cgi?id=2319212 Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
The fix for this CVE is already available in recent PAM versions and all supported fedora versions contain it.