Detections
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Mozilla Firefox < 82.0

critical Nessus Plugin ID 141572

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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 82.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-45 advisory.

 - Crossbeam is a set of tools for concurrent programming. In crossbeam-channel before version 0.4.4, the bounded channel incorrectly assumes that `Vec::from_iter` has allocated capacity that same as the number of iterator elements. `Vec::from_iter` does not actually guarantee that and may allocate extra memory. The destructor of the `bounded` channel reconstructs `Vec` from the raw pointer based on the incorrect assumes described above. This is unsound and causing deallocation with the incorrect capacity when `Vec::from_iter` has allocated different sizes with the number of iterator elements. This has been fixed in crossbeam-channel 0.4.4. (CVE-2020-15254)

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 82.0 or later.

See Also

https://www.mozilla.org/en-US/security/advisories/mfsa2020-45/

Plugin Details

Severity: Critical

ID: 141572

File Name: macos_firefox_82_0.nasl

Version: 1.7

Type: local

Agent: macosx

Published: 10/20/2020

Updated: 2/15/2024

Supported Sensors: 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-2020-15684

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: MacOSX/Firefox/Installed

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/20/2020

Vulnerability Publication Date: 10/16/2020

Reference Information

CVE: CVE-2020-15254, CVE-2020-15680, CVE-2020-15681, CVE-2020-15682, CVE-2020-15683, CVE-2020-15684, CVE-2020-15969

IAVA: 2020-A-0472-S

MFSA: 2020-45