Detections
Analytics

Mozilla Firefox ESR < 45.8

critical Nessus Plugin ID 275632

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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 ESR installed on the remote macOS or Mac OS X host is prior to 45.8. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2017-06 advisory.

 - Mozilla developers and community members Boris Zbarsky, Christian Holler, Honza Bambas, Jon Coppeard, Randell Jesup, Andr Bargull, Kan-Ru Chen, and Nathan Froyd reported memory safety bugs present in Firefox 51 and Firefox ESR 45.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. (CVE-2017-5398)

 - Memory corruption resulting in a potentially exploitable crash during garbage collection of JavaScript due errors in how incremental sweeping is managed for memory cleanup. (CVE-2017-5410)

 - JIT-spray targeting asm.js combined with a heap spray allows for a bypass of ASLR and DEP protections leading to potential memory corruption attacks. (CVE-2017-5400)

 - A crash triggerable by web content in which an <code>ErrorResult</code> references unassigned memory due to a logic error. The resulting crash may be exploitable. (CVE-2017-5401)

 - A use-after-free can occur when events are fired for a <code>FontFace</code> object after the object has been already been destroyed while working with fonts. This results in a potentially exploitable crash.
 (CVE-2017-5402)

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 ESR version 45.8 or later.

See Also

https://www.mozilla.org/en-US/security/advisories/mfsa2017-06/

Plugin Details

Severity: Critical

ID: 275632

File Name: macos_firefox_45_8_esr.nasl

Version: 1.1

Type: local

Agent: macosx

Published: 11/18/2025

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: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2017-5398

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

CVSS Score Source: CVE-2017-5410

Vulnerability Information

CPE: cpe:/a:mozilla:firefox_esr

Required KB Items: installed_sw/Mozilla Firefox ESR

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/7/2017

Vulnerability Publication Date: 3/7/2017

Reference Information

CVE: CVE-2017-5398, CVE-2017-5400, CVE-2017-5401, CVE-2017-5402, CVE-2017-5404, CVE-2017-5405, CVE-2017-5407, CVE-2017-5408, CVE-2017-5409, CVE-2017-5410

IAVA: 2017-A-0050-S