Red Hat alert RHSA-2025:15438-01 (thunderbird)

An update for thunderbird is now available for Red Hat Enterprise Linux 8.8
Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8
Telecommunications Update Service.

Red Hat Product Security has rated this update as having a security impact of
Important. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.

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.

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Original: https://access.redhat.com/security/data/csaf/v2/advisories/2025/rhsa-2025_15438.json