Hello.

 

We found bug in openssl CA certificate loading. This important bug for us in
Estonia ( http://id.ee/?lang=en <http://id.ee/?lang=en&id> &id= ) because we
use openssl as base library in digital signature verification. In digital
signature world it is normal that you want to verify signatures when CA
certificates are expired.

 

https://codereview.qt-project.org/#change,85087

 

https://www.openssl.org/docs/ssl/SSL_CTX_load_verify_locations.html#WARNINGS

 

If several CA certificates matching the name, key identifier, and serial
number condition are available, only the first one will be examined. This
may lead to unexpected results if the same CA certificate is available with
different expiration dates. If a ``certificate expired'' verification error
occurs, no other certificate will be searched. Make sure to not have expired
certificates mixed with valid ones.


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