RHSA-2023:1402 — Security Advisory

Red Hat Security Advisory: thunderbird security update

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Severity

Important

Red Hat Product Security

RHEL 9

Products

Official CSAF product identity

Published · March 22, 2023

Updated · November 22, 2025

Topic

An update for thunderbird is now available for Red Hat Enterprise Linux 9.0 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 102.9.0.

Security Fix(es):

Mozilla: Incorrect code generation during JIT compilation (CVE-2023-25751)
Mozilla: Memory safety bugs fixed in Firefox 111 and Firefox ESR 102.9 (CVE-2023-28176)
Mozilla: Potential out-of-bounds when accessing throttled streams (CVE-2023-25752)
Mozilla: Invalid downcast in Worklets (CVE-2023-28162)
Mozilla: URL being dragged from a removed cross-origin iframe into the same tab triggered navigation (CVE-2023-28164)

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.