Mozilla Firefox ESR < 115.21

high Nessus Plugin ID 221620

Synopsis

A web browser installed on the remote Windows host is affected by multiple vulnerabilities.

Description

The version of Firefox ESR installed on the remote Windows host is prior to 115.21. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-15 advisory.

- Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7, and Thunderbird 128.7. 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. (CVE-2025-1937)

- On 64-bit CPUs, when the JIT compiles WASM i32 return values they can pick up bits from left over memory.
This can potentially cause them to be treated as a different type. (CVE-2025-1933)

- In resizeToAtLeast of SkRegion.cpp, there was a possible out of bounds write due to an integer overflow (CVE-2024-43097)

- On Windows, a compromised content process could use bad StreamData sent over AudioIPC to trigger a use- after-free in the Browser process. This could have led to a sandbox escape. (CVE-2025-1930)

- It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash. (CVE-2025-1931)

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

Solution

Upgrade to Mozilla Firefox ESR version 115.21 or later.

Plugin Details

Severity: High

ID: 221620

File Name: mozilla_firefox_115_21_esr.nasl

Version: 1.1

Type: local

Agent: windows

Family: Windows

Published: 3/4/2025

Updated: 3/4/2025

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2025-1937

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

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

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

CVSS Score Source: CVE-2025-1933

Vulnerability Information

CPE: cpe:/a:mozilla:firefox_esr

Required KB Items: Mozilla/Firefox/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 3/4/2025

Vulnerability Publication Date: 1/2/2025

Reference Information

CVE: CVE-2024-43097, CVE-2025-1930, CVE-2025-1931, CVE-2025-1933, CVE-2025-1937

Detections

Analytics