Change #260099

Comments

openssl+ech: workaround for insecure handshakes

OpenSSL 4.0.0-dev supports ECH with one flaw. If peer verification
is not enabled, it will report SSL_ECH_STATUS_BAD_NAME on the ECH
status.

Provide a workaround in libcurl that checks the inner name used in
ECH was the peer's hostname, both verify peer and host are disabled
and then accept the BAD_NAME without failing the connect.

Fixes #20655
Reported-by: Dexter Gerig
Closes #20821

Changed files

• lib/vtls/openssl.c