Related Vulnerabilities: CVE-2023-28427  

DescriptionThe Mozilla Foundation Security Advisory describes this flaw as: Thunderbird users who use the Matrix chat protocol were vulnerable to a denial-of-service attack.The Mozilla Foundation Security Advisory describes this flaw as: Thunderbird users who use the Matrix chat protocol were vulnerable to a denial-of-service attack.

Affected Packages and Issued Red Hat Security Errata

Unless explicitly stated as not affected, all previous versions of packages in any minor update stream of a product listed here should be assumed vulnerable, although may not have been subject to full analysis.