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 cir…

{
                    "product": "GnuTLS",
                    "vendor": "n/a",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "Fixed in gnutls v3.7.3"
                        }
                    ]
                }