Internet Bug Bounty: CVE-2021-3711: SM2 decrypt buffer overflow

CVE-2021-3711 In order to decrypt SM2 encrypted data an application is expected to call the API function EVPPKEYdecrypt. Typically an application will call this function twice. The first time, on entry, the "out" parameter can be NULL and, on exit, the "outlen" parameter is populated with the...