Firefox ESR 45.x < 45.2 Multiple Vulnerabilities

high Nessus Plugin ID 91546

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Synopsis

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

Description

The version of Firefox ESR installed on the remote Windows host is 45.x prior to 45.2. It is, therefore, affected by multiple vulnerabilities :

- Multiple memory corruption issues exist that allow an unauthenticated, remote attacker to execute arbitrary code. (CVE-2016-2818)

- An overflow condition exists that is triggered when handling HTML5 fragments in foreign contexts (e.g., under <svg> nodes). An unauthenticated, remote attacker can exploit this to cause a heap-based buffer overflow, resulting in the execution of arbitrary code.
(CVE-2016-2819)

- A use-after-free error exists that is triggered when deleting DOM table elements in 'contenteditable' mode.
An unauthenticated, remote attacker can exploit this to dereference already freed memory, resulting in the execution of arbitrary code. (CVE-2016-2821)

- A spoofing vulnerability exists due to improper handling of SELECT elements. An unauthenticated, remote attacker can exploit this to spoof the contents of the address bar. (CVE-2016-2822)

- An out-of-bounds write error exists in the ANGLE graphics library due to improper size checking while writing to an array during WebGL shader operations. An unauthenticated, remote attacker can exploit this to execute arbitrary code. (CVE-2016-2824)

- A privilege escalation vulnerability exists in the Windows updater utility due to improper extraction of files from MAR archives. A local attacker can exploit this to replace the extracted files, allowing the attacker to gain elevated privileges. (CVE-2016-2826)

- A use-after-free error exists that is triggered when destroying the recycle pool of a texture used during the processing of WebGL content. An unauthenticated, remote attacker can exploit this to dereference already freed memory, resulting in the execution of arbitrary code.
(CVE-2016-2828)

- A flaw exists that is triggered when handling paired fullscreen and pointerlock requests in combination with closing windows. An unauthenticated, remote attacker can exploit this to create an unauthorized pointerlock, resulting in a denial of service condition.
Additionally, an attacker can exploit this to conduct spoofing and clickjacking attacks. (CVE-2016-2831)

Solution

Upgrade to Firefox ESR version 45.2 or later.

Plugin Details

Severity: High

ID: 91546

File Name: mozilla_firefox_45_2_esr.nasl

Version: 1.10

Type: Local

Agent: windows

Family: Windows

Published: 6/9/2016

Updated: 6/23/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.2

Percentile: 99.76

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

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

CVSS Score Source: CVE-2016-2826

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/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_esr

Required KB Items: Mozilla/Firefox/Version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/7/2016

Vulnerability Publication Date: 6/7/2016

Reference Information

CVE: CVE-2016-2818, CVE-2016-2819, CVE-2016-2821, CVE-2016-2822, CVE-2016-2824, CVE-2016-2826, CVE-2016-2828, CVE-2016-2831

BID: 91072, 91074, 91075

MFSA: 2016-49, 2016-50, 2016-51, 2016-52, 2016-53, 2016-55, 2016-56, 2016-58

Detections

Analytics