Detections
Analytics

Mozilla Firefox ESR < 52.6

critical Nessus Plugin ID 275689

Synopsis

A web browser installed on the remote macOS or Mac OS X host is affected by multiple vulnerabilities.

Description

The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 52.6. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2018-03 advisory.

 - A use-after-free vulnerability can occur during font face manipulation when a font face is freed while still in use, resulting in a potentially exploitable crash. (CVE-2018-5104)

 - A use-after-free vulnerability can occur during WebRTC connections when interacting with the DTMF timers.
 This results in a potentially exploitable crash. (CVE-2018-5091)

 - An integer overflow vulnerability in the Skia library when allocating memory for edge builders on some systems with at least 8 GB of RAM. This results in the use of uninitialized memory, resulting in a potentially exploitable crash. (CVE-2018-5095)

 - A use-after-free vulnerability can occur while editing events in form elements on a page, resulting in a potentially exploitable crash. (CVE-2018-5096)

 - A use-after-free vulnerability can occur during XSL transformations when the source document for the transformation is manipulated by script content during the transformation. This results in a potentially exploitable crash. (CVE-2018-5097)

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 52.6 or later.

See Also

https://www.mozilla.org/en-US/security/advisories/mfsa2018-03/

Plugin Details

Severity: Critical

ID: 275689

File Name: macos_firefox_52_6_esr.nasl

Version: 1.1

Type: local

Agent: macosx

Published: 11/18/2025

Updated: 11/18/2025

Supported Sensors: Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2018-5104

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: cpe:/a:mozilla:firefox_esr

Required KB Items: installed_sw/Mozilla Firefox ESR

Exploit Ease: No known exploits are available

Patch Publication Date: 1/23/2018

Vulnerability Publication Date: 1/23/2018

Reference Information

CVE: CVE-2018-5089, CVE-2018-5091, CVE-2018-5095, CVE-2018-5096, CVE-2018-5097, CVE-2018-5098, CVE-2018-5099, CVE-2018-5102, CVE-2018-5103, CVE-2018-5104, CVE-2018-5117

IAVA: 2018-A-0038-S