More information about this security flaw is available in the following bug: https://bugzilla.redhat.com/show_bug.cgi?id=2358141 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 vulnerability report contains little information. However, the function stb_dupreplace appears in deprecated/stb.h. The retroarch package doesn’t contain this library, so it cannot be affected.