Mozilla Firefox ESR < 68.4.1

high Nessus Plugin ID 132712
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

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

Description

The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 68.4.1. It is, therefore, affected by the vulnerability as referenced in the mfsa2020-03 advisory.

- Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted attacks in the wild abusing this flaw. (CVE-2019-17026)

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

Solution

Upgrade to Mozilla Firefox ESR version 68.4.1 or later.

See Also

https://www.mozilla.org/en-US/security/advisories/mfsa2020-03/

Plugin Details

Severity: High

ID: 132712

File Name: macos_firefox_68_4_1_esr.nasl

Version: 1.6

Type: local

Agent: macosx

Published: 1/8/2020

Updated: 5/11/2021

Dependencies: macosx_firefox_installed.nasl

Risk Information

CVSS Score Source: CVE-2019-17026

VPR

Risk Factor: Critical

Score: 9.5

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

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

Temporal Vector: E:H/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 8.4

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

Temporal Vector: E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:mozilla:firefox_esr

Required KB Items: MacOSX/Firefox/Version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/8/2020

Vulnerability Publication Date: 1/8/2020

Reference Information

CVE: CVE-2019-17026

MFSA: 2020-03