CURLcode Curl_auth_create_external_message(struct Curl_easy *data,
                                           const char *user, char **outptr,
                                           size_t *outlen)
{
  /* This is the same formatting as the login message */
  return Curl_auth_create_login_message(data, user, outptr, outlen);
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.