X509Common/SCT parsing: Fix memory leak in error case

Failed to free the copy of the OCSP extension's value the inner
octet string couldn't be parsed.

src/file_analysis/analyzer/x509/X509Common.cc

@@ -209,6 +209,7 @@ void X509Common::ParseSignedCertificateTimestamps(X509_EXTENSION* ext)
 	                                                 ext_val->length);
 	if ( ! inner )
 		{
+		OPENSSL_free(ext_val_second_pointer);
 		reporter->Error(
 			"X509::ParseSignedCertificateTimestamps could not parse inner octet string");
 		return;