Firefox ESR < 38.2.1 Multiple Vulnerabilities

critical Nessus Plugin ID 85688

Synopsis

The remote Windows host contains a web browser that is affected by multiple vulnerabilities.

Description

The version of Mozilla Firefox ESR installed on the remote Windows host is prior to 38.2.1. It is, therefore, affected by the following vulnerabilities :

- A use-after-free error exists when handling restyling operations during the resizing of canvas elements due to the canvas references being recreated, thus destroying the original references. A remote, unauthenticated attacker can exploit this to deference already freed memory, resulting in a denial of service condition or the execution of arbitrary code. (CVE-2015-4497)

- A security feature bypass vulnerability exists due to a flaw that allows the manipulation of the 'data:' URL on a loaded web page without install permission prompts being displayed to the user. A remote, unauthenticated attacker can exploit this to install add-ons from a malicious source. (CVE-2015-4498)

Solution

Upgrade to Firefox ESR 38.2.1 or later.

See Also

https://www.mozilla.org/en-US/security/advisories/mfsa2015-94/

https://www.mozilla.org/en-US/security/advisories/mfsa2015-95/

Plugin Details

Severity: Critical

ID: 85688

File Name: mozilla_firefox_38_2_1_esr.nasl

Version: 1.7

Type: local

Agent: windows

Family: Windows

Published: 8/28/2015

Updated: 11/22/2019

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

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-2015-4497

Vulnerability Information

CPE: cpe:/a:mozilla:firefox_esr

Required KB Items: Mozilla/Firefox/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 8/27/2015

Vulnerability Publication Date: 8/27/2015

Reference Information

CVE: CVE-2015-4497, CVE-2015-4498