Did not check malloc result

[jmp0x7c00]

message may be NULL:

sgx-based-mix-networks/mix_solution/Enclave/Enclave.cpp

Line 156 in 2827f10

message = (unsigned char *)malloc(strlen(choosen_message));

We can infer that message holds sensitive information because it will be encrypted:

sgx-based-mix-networks/mix_solution/Enclave/Enclave.cpp

Line 171 in 2827f10

sgx_status_t ret_get_output_len = sgx_rsa_pub_encrypt_sha256(

So choosen_message is sensitive too beacuse its content will be copied into message

sgx-based-mix-networks/mix_solution/Enclave/Enclave.cpp

Line 157 in 2827f10

std::copy(choosen_message, choosen_message + strlen(choosen_message), message);

if message is NULL, choosen_message will be copied outside enclave, which results in privacy leakage.