RHSA-2022:6996: 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

10 affected componentsFixes available
redhat/thunderbird<102.3.0-4.el8_2
102.3.0-4.el8_2
redhat/thunderbird<102.3.0-4.el8_2
102.3.0-4.el8_2
redhat/thunderbird-debuginfo<102.3.0-4.el8_2
102.3.0-4.el8_2
redhat/thunderbird-debugsource<102.3.0-4.el8_2
102.3.0-4.el8_2
redhat/thunderbird<102.3.0-4.el8_2
102.3.0-4.el8_2
redhat/thunderbird-debuginfo<102.3.0-4.el8_2
102.3.0-4.el8_2
redhat/thunderbird-debugsource<102.3.0-4.el8_2
102.3.0-4.el8_2
redhat/thunderbird<102.3.0-4.el8_2.aa
102.3.0-4.el8_2.aa
redhat/thunderbird-debuginfo<102.3.0-4.el8_2.aa
102.3.0-4.el8_2.aa
redhat/thunderbird-debugsource<102.3.0-4.el8_2.aa
102.3.0-4.el8_2.aa

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/thunderbird to a version that resolves this vulnerability.

    Fixed in 102.3.0-4.el8_2
  2. Upgrade

    Upgrade redhat/thunderbird-debuginfo to a version that resolves this vulnerability.

    Fixed in 102.3.0-4.el8_2
  3. Upgrade

    Upgrade redhat/thunderbird-debugsource to a version that resolves this vulnerability.

    Fixed in 102.3.0-4.el8_2
  4. Upgrade

    Upgrade redhat/thunderbird to a version that resolves this vulnerability.

    Fixed in 102.3.0-4.el8_2.aa
  5. Upgrade

    Upgrade redhat/thunderbird-debuginfo to a version that resolves this vulnerability.

    Fixed in 102.3.0-4.el8_2.aa
  6. Upgrade

    Upgrade redhat/thunderbird-debugsource to a version that resolves this vulnerability.

    Fixed in 102.3.0-4.el8_2.aa
  7. Upgrade

    Upgrade thunderbird to a version that resolves this vulnerability.

    Fixed in 102.3.0-4.el8_2

Event History

Jul 28, 2026
Advisory Published
via Red Hat·01:29 AM
Data Sourced
via Red Hat·01:29 AM
RemedyDescriptionAffected Software
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Frequently Asked Questions

1

What is the severity of RHSA-2022:6996?

The severity of RHSA-2022:6996 is classified as important due to the use-after-free vulnerability in Mozilla Thunderbird.

2

How do I fix RHSA-2022:6996?

To fix RHSA-2022:6996, you need to upgrade Mozilla Thunderbird to version 102.3.0-4.el8_2.

3

What vulnerability is addressed in RHSA-2022:6996?

RHSA-2022:6996 addresses a use-after-free vulnerability in the doContent function in xmlparse.c identified as CVE-2022-40674.

4

Which versions of Thunderbird are affected by RHSA-2022:6996?

Versions of Mozilla Thunderbird below 102.3.0-4.el8_2 are affected by RHSA-2022:6996.

5

Is there a specific package version I must install for RHSA-2022:6996?

Yes, you must install Thunderbird version 102.3.0-4.el8_2 to mitigate the vulnerability outlined in RHSA-2022:6996.

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