Provide references for CVE-2021-4209.
Where can I find more information about CVE-2021-4209?
References are available at: https://gitlab.com/gnutls/gnutls/-/issues/1306, https://bugzilla.redhat.com/show_bug.cgi?id=2044156, https://access.redhat.com/security/cve/CVE-2021-4209, https://gitlab.com/gnutls/gnutls/-/merge_requests/1503, https://gitlab.com/gnutls/gnutls/-/commit/3db352734472d851318944db13be73da61300568, https://security.netapp.com/advisory/ntap-20220915-0005/.