RHSA-2022:6995: Important: thunderbird security update

Published Oct 18, 2022
·
Updated

Mozilla Thunderbird is a standalone mail and newsgroup client.This update upgrades Thunderbird to version 102.3.0.Security Fix(es): expat: a use-after-free in the doContent function in xmlparse.c (CVE-2022-40674) 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.

Affected Software

12 affected componentsFixes available
redhat/thunderbird<102.3.0-4.el8_4
102.3.0-4.el8_4
redhat/thunderbird<102.3.0-4.el8_4
102.3.0-4.el8_4
redhat/thunderbird-debuginfo<102.3.0-4.el8_4
102.3.0-4.el8_4
redhat/thunderbird-debugsource<102.3.0-4.el8_4
102.3.0-4.el8_4
redhat/thunderbird-debuginfo<102.3.0-4.el8_4
102.3.0-4.el8_4
redhat/thunderbird-debugsource<102.3.0-4.el8_4
102.3.0-4.el8_4
redhat/thunderbird<102.3.0-4.el8_4
102.3.0-4.el8_4
redhat/thunderbird-debuginfo<102.3.0-4.el8_4
102.3.0-4.el8_4
redhat/thunderbird-debugsource<102.3.0-4.el8_4
102.3.0-4.el8_4
redhat/thunderbird<102.3.0-4.el8_4.aa
102.3.0-4.el8_4.aa
redhat/thunderbird-debuginfo<102.3.0-4.el8_4.aa
102.3.0-4.el8_4.aa
redhat/thunderbird-debugsource<102.3.0-4.el8_4.aa
102.3.0-4.el8_4.aa

Remediation

Event History

Jan 2, 2026
Advisory Published
via Red Hat·06:48 PM
Data Sourced
via Red Hat·06:48 PM
RemedyDescriptionAffected Software
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Frequently Asked Questions

1

What is the severity of RHSA-2022:6995?

The severity of RHSA-2022:6995 is classified as important.

2

How do I fix RHSA-2022:6995?

You can fix RHSA-2022:6995 by upgrading Thunderbird to version 102.3.0-4.el8_4.

3

What vulnerability is addressed in RHSA-2022:6995?

RHSA-2022:6995 addresses a use-after-free vulnerability in the expat library, specifically CVE-2022-40674.

4

Which versions of Thunderbird are affected by RHSA-2022:6995?

Versions of Thunderbird prior to 102.3.0-4.el8_4 are affected by RHSA-2022:6995.

5

Is there a need for a system reboot after installing the fix for RHSA-2022:6995?

A system reboot is not typically required after applying the fix for RHSA-2022:6995, but it's advisable to restart the application.

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