{"id":"CVE-2020-24659","revision":"47ab9b8557a34ba58f621f2bdb8e4b44","records":[{"revision":"47ab9b8557a34ba58f621f2bdb8e4b44","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2020-24659","aliases":[],"title":"An issue was discovered in GnuTLS before 3.6.15. A server can trigger a NULL pointer dereference in a TLS 1.3 client if a no_renegotiation alert is sent with unexpected timing, and then an invalid second handshake occurs. The crash happens …","description":"An issue was discovered in GnuTLS before 3.6.15. A server can trigger a NULL pointer dereference in a TLS 1.3 client if a no_renegotiation alert is sent with unexpected timing, and then an invalid second handshake occurs. The crash happens in the application's error handling path, where the gnutls_deinit function is called after detecting a handshake failure.","state":0,"publishedAt":"2020-09-04T14:03:36+00:00","modifiedAt":"2026-10-14T09:35:20.961+00:00","affected":[{"ecosystem":"Vendor product","name":"n/a","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"n/a\",\n                    \"vendor\": \"n/a\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"n/a\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://gitlab.com/gnutls/gnutls/-/issues/1071","https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-09-04","https://security.gentoo.org/glsa/202009-01","https://security.netapp.com/advisory/ntap-20200911-0006/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62BUAI4FQQLG6VTKRT7SUZPGJJ4NASQ3/","https://usn.ubuntu.com/4491-1/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AWN56FDLQQXT2D2YHNI4TYH432TDMQ7N/","http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00054.html","http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00060.html"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2020-24659","license":"CVE Program Terms of Use","key":"cve-program:CVE-2020-24659","identifiers":["CVE-2020-24659"]},"retained":false,"historicalAffected":[]}],"coverage":[]}