{"id":"CVE-2021-20231","revision":"7a318d708ab7467991b7c019682b6903","records":[{"revision":"7a318d708ab7467991b7c019682b6903","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2021-20231","aliases":[],"title":"A flaw was found in gnutls. A use after free issue in client sending key_share extension may lead to memory corruption and other consequences.","description":"A flaw was found in gnutls. A use after free issue in client sending key_share extension may lead to memory corruption and other consequences.","state":0,"publishedAt":"2021-03-12T18:23:59+00:00","modifiedAt":"2026-10-14T10:04:12.446+00:00","affected":[{"ecosystem":"Vendor product","name":"gnutls","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"gnutls\",\n                    \"vendor\": \"n/a\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"gnutls 3.7.1\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=1922276","https://www.gnutls.org/security-new.html#GNUTLS-SA-2021-03-10","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OSLAE6PP33A7VYRYMYMUVB3U6B26GZER/","https://lists.apache.org/thread.html/r5f88bed447742fcc5c47bf1c7be965ef450131914a6e1f85feba2779%40%3Cissues.spark.apache.org%3E","https://security.netapp.com/advisory/ntap-20210416-0005/","https://lists.apache.org/thread.html/rcd70a4c88a47a75fd2d5f3ffb7cee8c2a18c713320bd90fdcb57495f%40%3Cissues.spark.apache.org%3E","https://lists.apache.org/thread.html/r5d4001031e7790d8c6396c499522b4ed2aab782da87b1a14184793bb%40%3Cissues.spark.apache.org%3E","https://lists.apache.org/thread.html/r9cbc69e57276413788e90a6ee16c7c034ea4258d31935b70db2bd158%40%3Cissues.spark.apache.org%3E","https://lists.apache.org/thread.html/rfd5273d72d244178441e6904a2f2b41a3268f569e8092ea0b3b2bb20%40%3Cissues.spark.apache.org%3E","https://lists.apache.org/thread.html/rf5e1256d870193def4a82ad89ab95e63943a313b5ff0d81aa87e4532%40%3Cissues.spark.apache.org%3E","https://lists.apache.org/thread.html/r50661d6f0082709aad9a584431b59ec364f9974b63b07e0800230168%40%3Cissues.spark.apache.org%3E","https://lists.apache.org/thread.html/r6ac143ba6dd98bd4bf6bf010d46e56e254056459721ba18822d611f7%40%3Cissues.spark.apache.org%3E"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2021-20231","license":"CVE Program Terms of Use","key":"cve-program:CVE-2021-20231","identifiers":["CVE-2021-20231"]},"retained":false,"historicalAffected":[]}],"coverage":[]}