RHSA-2022:1730 — 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 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.