{"id":"CVE-2020-11501","revision":"3d287103a4fd4c53ad0f37a9509c715d","records":[{"revision":"3d287103a4fd4c53ad0f37a9509c715d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2020-11501","aliases":[],"title":"GnuTLS 3.6.x before 3.6.13 uses incorrect cryptography for DTLS. The earliest affected version is 3.6.3 (2018-07-16) because of an error in a 2017-10-06 commit. The DTLS client always uses 32 '\\0' bytes instead of a random value, and thus c…","description":"GnuTLS 3.6.x before 3.6.13 uses incorrect cryptography for DTLS. The earliest affected version is 3.6.3 (2018-07-16) because of an error in a 2017-10-06 commit. The DTLS client always uses 32 '\\0' bytes instead of a random value, and thus contributes no randomness to a DTLS negotiation. This breaks the security guarantees of the DTLS protocol.","state":0,"publishedAt":"2020-04-03T12:42:28+00:00","modifiedAt":"2026-10-14T08:55:12.97+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://security.gentoo.org/glsa/202004-06","https://gitlab.com/gnutls/gnutls/-/issues/960","https://gitlab.com/gnutls/gnutls/-/commit/5b595e8e52653f6c5726a4cdd8fddeb6e83804d2","https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-03-31","https://www.debian.org/security/2020/dsa-4652","http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00015.html","https://security.netapp.com/advisory/ntap-20200416-0002/","https://usn.ubuntu.com/4322-1/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WDYY3R4F5CUTFAMXH2C5NKYFVDEJLTT7/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ILMOWPKMTZAIMK5F32TUMO34XCABUCFJ/"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2020-11501","license":"CVE Program Terms of Use","key":"cve-program:CVE-2020-11501","identifiers":["CVE-2020-11501"]},"retained":false,"historicalAffected":[]}],"coverage":[]}