Detections
Analytics

Mozilla Firefox < 88.0.1

high Nessus Plugin ID 149282

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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 88.0.1. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2021-20 advisory.

 - A malicious webpage could have forced a Firefox for Android user into executing attacker-controlled JavaScript in the context of another domain, resulting in a Universal Cross-Site Scripting vulnerability.Note: This issue only affected Firefox for Android. Other operating systems are unaffected. Further details are being temporarily withheld to allow users an opportunity to update.
 (CVE-2021-29953)

 - When Web Render components were destructed, a race condition could have caused undefined behavior, and we presume that with enough effort may have been exploitable to run arbitrary code. (CVE-2021-29952)

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 version 88.0.1 or later.

See Also

https://www.mozilla.org/en-US/security/advisories/mfsa2021-20/

Plugin Details

Severity: High

ID: 149282

File Name: macos_firefox_88_0_1.nasl

Version: 1.7

Type: local

Agent: macosx

Published: 5/5/2021

Updated: 6/28/2021

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 5.1

Temporal Score: 3.8

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

CVSS Score Source: CVE-2021-29952

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/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

Required KB Items: MacOSX/Firefox/Installed

Exploit Ease: No known exploits are available

Patch Publication Date: 5/5/2021

Vulnerability Publication Date: 5/5/2021

Reference Information

CVE: CVE-2021-29952, CVE-2021-29953

IAVA: 2021-A-0214-S