RHSA-2020:2614 — Security Advisory

An update for thunderbird is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 68.9.0.

Security Fix(es):

• Mozilla: Security downgrade with IMAP STARTTLS leads to information leakage (CVE-2020-12398)

• Mozilla: Use-after-free in SharedWorkerService (CVE-2020-12405)

• Mozilla: JavaScript Type confusion with NativeTypes (CVE-2020-12406)

• Mozilla: Memory safety bugs fixed in Firefox 77 and Firefox ESR 68.9 (CVE-2020-12410)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.