CVE-2021-44273: Improper Certificate Validation

e2guardian v5.4.x = v5.4.3r is affected by missing SSL certificate validation in the SSL MITM engine. In standalone mode i.e., acting as a proxy or a transparent proxy, with SSL MITM enabled, e2guardian, if built with OpenSSL v1.1.x, did not validate hostnames in certificates of the web servers...