Detections
Analytics

Mozilla Firefox < 90.0

critical Nessus Plugin ID 151572

Language:

Synopsis

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

Description

The version of Firefox installed on the remote macOS or Mac OS X host is prior to 90.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2021-28 advisory.

 - If a user had granted a permission to a webpage and saved that grant, any webpage running on the same host
 - irrespective of scheme or port - would be granted that permission. This bug only affects Firefox for Android. Other operating systems are unaffected. (CVE-2021-29971)

 - A malicious webpage could have triggered a use-after-free, memory corruption, and a potentially exploitable crash. This bug only affected Firefox when accessibility was enabled. (CVE-2021-29970)

 - An out of bounds write in ANGLE could have allowed an attacker to corrupt memory leading to a potentially exploitable crash. (CVE-2021-30547)

 - A user-after-free vulnerability was found via testing, and traced to an out-of-date Cairo library.
 Updating the library resolved the issue, and may have remediated other, unknown security vulnerabilities as well. (CVE-2021-29972)

 - Password autofill was enabled without user interaction on insecure websites on Firefox for Android. This was corrected to require user interaction with the page before a user's password would be entered by the browser's autofill functionality. This bug only affects Firefox for Android. Other operating systems are unaffected. (CVE-2021-29973)

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 version 90.0 or later.

See Also

https://www.mozilla.org/en-US/security/advisories/mfsa2021-28/

Plugin Details

Severity: Critical

ID: 151572

File Name: macos_firefox_90_0.nasl

Version: 1.8

Type: local

Agent: macosx

Published: 7/13/2021

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: 5.9

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

CVSS Score Source: CVE-2021-29971

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:mozilla:firefox

Required KB Items: installed_sw/Mozilla Firefox

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/13/2021

Vulnerability Publication Date: 6/8/2021

Reference Information

CVE: CVE-2021-29970, CVE-2021-29971, CVE-2021-29972, CVE-2021-29973, CVE-2021-29974, CVE-2021-29975, CVE-2021-29976, CVE-2021-29977, CVE-2021-30547

IAVA: 2021-A-0293-S, 2021-A-0309-S