Mbed TLS before 2.28.10 and 3.x before 3.6.3, on the client side, accepts servers that have trusted certificates for arbitrary hostnames unless the TLS client application calls mbedtls_ssl_set_hostname.
| Software | From | Fixed in |
|---|---|---|
| arm / mbed_tls | - | 2.28.10 |
| arm / mbed_tls | 3.0.0 | 3.6.3 |