Internet Bug Bounty: Double-free in X509 parsing

Note: OpenSSL decided not to assign a CVE, so I'm submitting this for reputation points. See: https://github.com/openssl/openssl/commit/6dcba070a94b1ead92f3e327cf207a0b7db6596f https://github.com/guidovranken/openssl-x509-vulnerabilities...