Resending this as a new thread, for increased visibility. As explained in the older thread, the Mozilla project has started to remove CA certificates that contain weak keys. Those removals cause issues with software based on OpenSSL, and software based on older versions of GnuTLS. (A short description of the issue can be found in tracker bug https://bugzilla.redhat.com/show_bug.cgi?id=1166614 - I intend to file a ticket against OpenSSL shortly.) For Fedora, we have decided to keep the legacy CA certificates included and trusted by default, in order to avoid compatibility issues, until we get functional updates to OpenSSL. I'm documenting the changes on top of the Mozilla CA list at: https://fedoraproject.org/wiki/CA-Certificates However, we want to provide users/administrators with the ability to change the default, by configuring the ca-certificates to strictly follow the trust decisions made by Mozilla, thereby accepting the compatibility issues (e.g. untrusted TLS connections, if certificates of affected server configurations cannot be validated). The above has been implemented for Fedora 21, it looks like it will be included as part of the Fedora 21 release: ca-certificates-2014.2.1-1.5.fc21.noarch Using the new ca-legacy utility, it is possible to disable trust for the legacy CA certificates as a systemwide configuration, by executing this command as root: ca-legacy disable The configuration will be remembered in /etc/pki/ca-trust/ca-legacy.conf and will be used on future package upgrades, when additional certificates are moved to the legacy state. If required, it's possible to undo the configuration and revert to the current default, using: ca-legacy enable The current configuration can be shown using: ca-legacy check Regarding Fedora 19 and Fedora 20: On F19/F20, GnuTLS is also affected by the breakage, when disabling trust for the legacy CAs, because GnuTLS has been enhanced in Fedora 21 and later, only. Updated packages for F19 and F20, that provide the update to version 2.1 of the ca-certificates list, and which also include the new ca-legacy utility and configuration mechanism, have been pushed to updates-testing: https://admin.fedoraproject.org/updates/ca-certificates-2014.2.1-1.5.fc19 https://admin.fedoraproject.org/updates/ca-certificates-2014.2.1-1.5.fc20 Kai -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
