If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unencrypted connection, causing email data to be sent without protection. External Reference: https://www.mozilla.org/en-US/security/advisories/mfsa2020-22/#CVE-2020-12398
Acknowledgments: Name: the Mozilla project Upstream: Damian Poddebniak
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions Via RHSA-2020:2616 https://access.redhat.com/errata/RHSA-2020:2616
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.1 Extended Update Support Via RHSA-2020:2611 https://access.redhat.com/errata/RHSA-2020:2611
This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Via RHSA-2020:2613 https://access.redhat.com/errata/RHSA-2020:2613
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2020:2614 https://access.redhat.com/errata/RHSA-2020:2614
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2020-12398
This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2020:2615 https://access.redhat.com/errata/RHSA-2020:2615