Detections
Analytics

Mozilla Firefox < 51.0

critical Nessus Plugin ID 275691

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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 51.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2017-01 advisory.

 - A use-after-free vulnerability in the Media Decoder when working with media files when some events are fired after the media elements are freed from memory. (CVE-2017-5396)

 - JIT code allocation can allow for a bypass of ASLR and DEP protections leading to potential memory corruption attacks. (CVE-2017-5375)

 - Use-after-free while manipulating XSL in XSLT documents (CVE-2017-5376)

 - A memory corruption vulnerability in Skia that can occur when using transforms to make gradients, resulting in a potentially exploitable crash. (CVE-2017-5377)

 - Hashed codes of JavaScript objects are shared between pages. This allows for pointer leaks because an objects address can be discovered through hash codes, and also allows for data leakage of an objects content using these hash codes. (CVE-2017-5378)

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 51.0 or later.

See Also

https://www.mozilla.org/en-US/security/advisories/mfsa2017-01/

Plugin Details

Severity: Critical

ID: 275691

File Name: macos_firefox_51_0.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: Critical

Score: 9.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

CVSS Score Source: CVE-2017-5396

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.4

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:H/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: 1/24/2017

Vulnerability Publication Date: 1/24/2017

Reference Information

CVE: CVE-2017-5373, CVE-2017-5374, CVE-2017-5375, CVE-2017-5376, CVE-2017-5377, CVE-2017-5378, CVE-2017-5379, CVE-2017-5380, CVE-2017-5381, CVE-2017-5382, CVE-2017-5383, CVE-2017-5384, CVE-2017-5385, CVE-2017-5386, CVE-2017-5387, CVE-2017-5388, CVE-2017-5389, CVE-2017-5390, CVE-2017-5391, CVE-2017-5392, CVE-2017-5393, CVE-2017-5394, CVE-2017-5395, CVE-2017-5396

IAVA: 2017-A-0026-S