Amazon Linux 2023 : firefox (ALAS2023-2025-1203)

high Nessus Plugin ID 266186

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Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-1203 advisory.

Sandbox escape due to use-after-free in the Graphics: Canvas2D component.

This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3.
(CVE-2025-10527)

Sandbox escape due to undefined behavior, invalid pointer in the Graphics: Canvas2D component.

This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3.
(CVE-2025-10528)

Same-origin policy bypass in the Layout component.

This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3.
(CVE-2025-10529)

Incorrect boundary conditions in the JavaScript: GC component.

This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3.
(CVE-2025-10532)

Integer overflow in the SVG component.

This vulnerability affects Firefox < 143, Firefox ESR < 115.28, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3. (CVE-2025-10533)

Information disclosure in the Networking: Cache component.

This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3.
(CVE-2025-10536)

Memory safety bugs present in Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142.
Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3. (CVE-2025-10537)

libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing. (CVE-2025-59375)

Tenable has extracted the preceding description block directly from the tested product 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

Run 'dnf update firefox --releasever 2023.9.20250929' or or 'dnf update --advisory ALAS2023-2025-1203 --releasever 2023.9.20250929' to update your system.

Plugin Details

Severity: High

ID: 266186

File Name: al2023_ALAS2023-2025-1203.nasl

Version: 1.1

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 9/30/2025

Updated: 9/30/2025

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

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:amazon:linux:2023, p-cpe:/a:amazon:linux:firefox-debugsource, p-cpe:/a:amazon:linux:firefox, p-cpe:/a:amazon:linux:firefox-debuginfo

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/29/2025

Vulnerability Publication Date: 9/15/2025

Reference Information

CVE: CVE-2025-10527, CVE-2025-10528, CVE-2025-10529, CVE-2025-10532, CVE-2025-10533, CVE-2025-10536, CVE-2025-10537, CVE-2025-59375

IAVA: 2025-A-0682

Detections

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