Detections
Analytics

Mozilla Firefox < 57.0

critical Nessus Plugin ID 275659

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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 57.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2017-24 advisory.

 - Mozilla developers and community members Boris Zbarsky, Carsten Book, Christian Holler, Byron Campen, Jan de Mooij, Jason Kratzer, Jesse Schwartzentruber, Marcia Knous, Randell Jesup, Tyson Smith, and Ting-Yu Chou reported memory safety bugs present in Firefox 56. 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-2017-7827)

 - A use-after-free vulnerability can occur when flushing and resizing layout because the <code>PressShell</code> object has been freed while still in use. This results in a potentially exploitable crash during these operations. (CVE-2017-7828)

 - The Resource Timing API incorrectly revealed navigations in cross-origin iframes. This is a same-origin policy violation and could allow for data theft of URLs loaded by users. (CVE-2017-7830)

 - A vulnerability where the security wrapper does not deny access to some exposed properties using the deprecated <code>exposedProps</code> mechanism on proxy objects. These properties should be explicitly unavailable to proxy objects. (CVE-2017-7831)

 - The combined, single character, version of the letter 'i' with any of the potential accents in unicode, such as acute or grave, can be spoofed in the addressbar by the dotless version of 'i' followed by the same accent as a second character with most font sets. This allows for domain spoofing attacks because these combined domain names do not display as punycode. (CVE-2017-7832)

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 57.0 or later.

See Also

https://www.mozilla.org/en-US/security/advisories/mfsa2017-24/

Plugin Details

Severity: Critical

ID: 275659

File Name: macos_firefox_57_0.nasl

Version: 1.1

Type: local

Agent: macosx

Published: 11/18/2025

Updated: 11/18/2025

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2017-7827

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

CVSS Score Source: CVE-2017-7828

Vulnerability Information

CPE: cpe:/a:mozilla:firefox

Required KB Items: installed_sw/Mozilla Firefox

Exploit Ease: No known exploits are available

Patch Publication Date: 11/14/2017

Vulnerability Publication Date: 11/14/2017

Reference Information

CVE: CVE-2017-7826, CVE-2017-7827, CVE-2017-7828, CVE-2017-7830, CVE-2017-7831, CVE-2017-7832, CVE-2017-7833, CVE-2017-7834, CVE-2017-7835, CVE-2017-7836, CVE-2017-7837, CVE-2017-7838, CVE-2017-7839, CVE-2017-7840, CVE-2017-7842

IAVA: 2017-A-0330-S