CVE ID:	CVE-2021-4209
Description:	A NULL pointer dereference flaw was found in GnuTLS. As Nettle's hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances.
Test IDs:	1.3.6.1.4.1.25623.1.1.2.2023.2411   1.3.6.1.4.1.25623.1.1.12.2022.5750.1   1.3.6.1.4.1.25623.1.1.4.2022.0677.1   1.3.6.1.4.1.25623.1.1.2.2023.1504   1.3.6.1.4.1.25623.1.0.854542   1.3.6.1.4.1.25623.1.1.4.2022.0678.1   1.3.6.1.4.1.25623.1.1.2.2023.1700   1.3.6.1.4.1.25623.1.1.4.2022.0717.1   1.3.6.1.4.1.25623.1.1.10.2022.0098   1.3.6.1.4.1.25623.1.1.2.2023.1316
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2021-4209 https://access.redhat.com/security/cve/CVE-2021-4209 https://access.redhat.com/security/cve/CVE-2021-4209 https://bugzilla.redhat.com/show_bug.cgi?id=2044156 https://bugzilla.redhat.com/show_bug.cgi?id=2044156 https://gitlab.com/gnutls/gnutls/-/commit/3db352734472d851318944db13be73da61300568 https://gitlab.com/gnutls/gnutls/-/commit/3db352734472d851318944db13be73da61300568 https://gitlab.com/gnutls/gnutls/-/issues/1306 https://gitlab.com/gnutls/gnutls/-/issues/1306 https://gitlab.com/gnutls/gnutls/-/merge_requests/1503 https://gitlab.com/gnutls/gnutls/-/merge_requests/1503