Mozilla Firefox ESR < 68.4.1

high Nessus Plugin ID 132714

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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 Windows host is affected by a vulnerability.

Description

The version of Firefox ESR installed on the remote Windows 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: 132714

File Name: mozilla_firefox_68_4_1_esr.nasl

Version: 1.6

Type: local

Agent: windows

Family: Windows

Published: 1/8/2020

Updated: 5/11/2021

Dependencies: mozilla_org_installed.nasl

Risk Information

CVSS Score Source: CVE-2019-17026

VPR

Risk Factor: Critical

Score: 9.6

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: Mozilla/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