RHSA-2025:17343: Important: thunderbird security update
Important: thunderbird security update
Other sources
Mozilla Thunderbird is a standalone mail and newsgroup client.Security Fix(es): firefox: thunderbird: Sandbox escape due to use-after-free in the Graphics: Canvas2D component (CVE-2025-10527) firefox: thunderbird: Incorrect boundary conditions in the JavaScript: GC component (CVE-2025-10532) firefox: thunderbird: Sandbox escape due to undefined behavior, invalid pointer in the Graphics: Canvas2D component (CVE-2025-10528) firefox: thunderbird: Same-origin policy bypass in the Layout component (CVE-2025-10529) firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143 (CVE-2025-10537) firefox: thunderbird: Information disclosure in the Networking: Cache component (CVE-2025-10536) firefox: thunderbird: Integer overflow in the SVG component (CVE-2025-10533) 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.
— Red Hat
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2025:17343?
The severity of RHSA-2025:17343 is classified as important.
How do I fix RHSA-2025:17343?
To fix RHSA-2025:17343, you should update to Thunderbird version 140.3.0-1.el8_8.
What vulnerabilities are addressed in RHSA-2025:17343?
RHSA-2025:17343 addresses a sandbox escape and incorrect boundary conditions issues in Thunderbird.
Which systems are affected by RHSA-2025:17343?
RHSA-2025:17343 affects Red Hat Enterprise Linux Server for Power LE and x86_64 architectures.
Is a reboot required after applying RHSA-2025:17343 updates?
A reboot is not required after applying the updates for RHSA-2025:17343.