3663082 - SSSLERR_SERVER_CERT_MISMATCH on using localhost as hostname

Even with all certificates imported correctly, SSL handshake is returning SSSLERR_SERVER_CERT_MISMATCH if "localhost" is the hostname called to stablish the connection. 

Below is an example of ICM trace (dev_icm) showing described scenario:

  Target Hostname="localhost"
  SSL NI-hdl 228: local=127.0.0.1:<port>  peer=127.0.0.1:<port>
<<- ERROR: SapSSLSessionStartNB(sssl_hdl=7f11b809fdb0)==SSSLERR_SERVER_CERT_MISMATCH
*** ERROR => SSL handshake with localhost:<port> failed: SSSLERR_SERVER_CERT_MISMATCH (-30)
             Server certificate not valid for supplied TargetHostname (fatal rfc2818 section 3.1 mismatch)

             SapSSLSessionStartNB()==SSSLERR_SERVER_CERT_MISMATCH
               TLSextSNI srv_name = "localhost"
               TargetHostname     = "localhost"
               ServerCert.subject = <CN=.., O=..,>
               ServerCert.issuer  = <..>
               ServerCert.SANs    = <..>
               SSL NI-hdl 228: local=127.0.0.1:<port>  peer=127.0.0.1:<port>

             peer certificate: SUBJECT="<..>"

<<- ERROR: SapSSLSessionStartNB(sssl_hdl=7f11a0044100)==SSSLERR_SERVER_CERT_MISMATCH
*** ERROR => SSL handshake with <real hostname>:<port> failed: SSSLERR_SERVER_CERT_MISMATCH (-30)
             Server certificate not valid for supplied TargetHostname (fatal rfc2818 section 3.1 mismatch)

SAP NetWeaver all versions

SAP S/4HANA all versions

SSSLERR_SERVER_CERT_MISMATCH, localhost , KBA , BC-CST-IC , Internet Communication Manager , BC-SEC-SSL , Secure Sockets Layer Protocol , BC-SEC-SSF , Secure Store and Forward , Problem