Provide references for CVE-2021-4133.
Where can I find more information about CVE-2021-4133?
References are available at: https://bugzilla.redhat.com/show_bug.cgi?id=2033602, https://github.com/keycloak/keycloak/issues/9247, https://github.com/keycloak/keycloak/security/advisories/GHSA-83x4-9cwr-5487, https://www.oracle.com/security-alerts/cpuapr2022.html.