RHSA-2025:15438: Important: thunderbird security update
Important: thunderbird security update
Other sources
Mozilla Thunderbird is a standalone mail and newsgroup client.Security Fix(es): firefox: thunderbird: Denial-of-service due to out-of-memory in the Graphics: WebRender component (CVE-2025-9182) thunderbird: firefox: Sandbox escape due to invalid pointer in the Audio/Video: GMP component (CVE-2025-9179) thunderbird: firefox: Same-origin policy bypass in the Graphics: Canvas2D component (CVE-2025-9180) thunderbird: firefox: Uninitialized memory in the JavaScript Engine component (CVE-2025-9181) thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.27, Firefox ESR 128.14, Thunderbird ESR 128.14, Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142 (CVE-2025-9185) 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-2025:15438?
The severity of RHSA-2025:15438 is classified as Important.
How do I fix RHSA-2025:15438?
To fix RHSA-2025:15438, you should update your Thunderbird package to the latest version provided in the advisory.
What software does RHSA-2025:15438 affect?
RHSA-2025:15438 affects various versions of Red Hat Enterprise Linux Server for Power LE, x86_64, and Extended Update Support Extension.
What vulnerabilities does RHSA-2025:15438 address in Thunderbird?
RHSA-2025:15438 addresses security vulnerabilities related to the Thunderbird email client.
When was RHSA-2025:15438 released?
RHSA-2025:15438 was released in 2025 as part of a security update.