RHSA-2022:1725 — Security Advisory

Red Hat Security Advisory: thunderbird security update

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Severity

Important

Red Hat Product Security

RHEL 7

Products

Official CSAF product identity

Published · May 5, 2022

Updated · June 25, 2026

Topic

An update for thunderbird is now available for Red Hat Enterprise Linux 7.

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 91.9.0.

Security Fix(es):

Mozilla: Bypassing permission prompt in nested browsing contexts (CVE-2022-29909)
Mozilla: iframe Sandbox bypass (CVE-2022-29911)
Mozilla: Fullscreen notification bypass using popups (CVE-2022-29914)
Mozilla: Leaking browser history with CSS variables (CVE-2022-29916)
Mozilla: Memory safety bugs fixed in Firefox 100 and Firefox ESR 91.9 (CVE-2022-29917)
Mozilla: Reader mode bypassed SameSite cookies (CVE-2022-29912)
Mozilla: Speech Synthesis feature not properly disabled (CVE-2022-29913)
Mozilla: Incorrect security status shown after viewing an attached email (CVE-2022-1520)

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.