RHEL 8 : thunderbird (RHSA-2025:16589)

high Nessus Plugin ID 265786

Synopsis

The remote Red Hat host is missing one or more security updates for thunderbird.

Description

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:16589 advisory.

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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL thunderbird package based on the guidance in RHSA-2025:16589.

Plugin Details

Severity: High

ID: 265786

File Name: redhat-RHSA-2025-16589.nasl

Version: 1.1

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 9/24/2025

Updated: 9/24/2025

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2025-10537

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:redhat:rhel_eus:8.10, p-cpe:/a:redhat:enterprise_linux:thunderbird, cpe:/o:redhat:enterprise_linux:8

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 9/24/2025

Vulnerability Publication Date: 9/16/2025

Reference Information

CVE: CVE-2025-10527, CVE-2025-10528, CVE-2025-10529, CVE-2025-10532, CVE-2025-10533, CVE-2025-10536, CVE-2025-10537

CWE: 125, 190, 416, 824

RHSA: 2025:16589

Detections

Analytics