RHSA-2023:3566 — Security Advisory
Red Hat Security Advisory: thunderbird security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · June 14, 2023
Updated · November 22, 2025
Topic
An update for thunderbird is now available for Red Hat Enterprise Linux 8.6 Extended Update Support.
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.
Description
Mozilla Thunderbird is a standalone mail and newsgroup client.
This update upgrades Thunderbird to version 102.12.0.
Security Fix(es):
-
Mozilla: Click-jacking certificate exceptions through rendering lag (CVE-2023-34414)
-
Mozilla: Memory safety bugs fixed in Firefox 114 and Firefox ESR 102.12 (CVE-2023-34416)
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.