Mozilla Firefox ESR < 115.6

high Nessus Plugin ID 187077

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Synopsis

A web browser installed on the remote Windows host is affected by multiple vulnerabilities.

Description

The version of Firefox ESR installed on the remote Windows host is prior to 115.6. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2023-54 advisory.

- The WebGL <code>DrawElementsInstanced</code> method was susceptible to a heap buffer overflow when used on systems with the Mesa VM driver. This issue could allow an attacker to perform remote code execution and sandbox escape. (CVE-2023-6856)

- <code>EncryptingOutputStream</code> was susceptible to exposing uninitialized data. This issue could only be abused in order to write data to a local disk which may have implications for private browsing mode.
(CVE-2023-6865)

- When resolving a symlink, a race may occur where the buffer passed to <code>readlink</code> may actually be smaller than necessary. This bug only affects Firefox on Unix-based operating systems (Android, Linux, MacOS). Windows is unaffected. (CVE-2023-6857)

- Firefox was susceptible to a heap buffer overflow in <code>nsTextFragment</code> due to insufficient OOM handling. (CVE-2023-6858)

- A use-after-free condition affected TLS socket creation when under memory pressure. (CVE-2023-6859)

- The <code>VideoBridge</code> allowed any content process to use textures produced by remote decoders.
This could be abused to escape the sandbox. (CVE-2023-6860)

- The timing of a button click causing a popup to disappear was approximately the same length as the anti- clickjacking delay on permission prompts. It was possible to use this fact to surprise users by luring them to click where the permission grant button would be about to appear. (CVE-2023-6867)

- The <code>nsWindow::PickerOpen(void)</code> method was susceptible to a heap buffer overflow when running in headless mode. (CVE-2023-6861)

- A use-after-free was identified in the <code>nsDNSService::Init</code>. This issue appears to manifest rarely during start-up. (CVE-2023-6862)

- The <code>ShutdownObserver()</code> was susceptible to potentially undefined behavior due to its reliance on a dynamic type that lacked a virtual destructor. (CVE-2023-6863)

- Memory safety bugs present in Firefox 120, Firefox ESR 115.5, and Thunderbird 115.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. (CVE-2023-6864)

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 115.6 or later.

Plugin Details

Severity: High

ID: 187077

File Name: mozilla_firefox_115_6_esr.nasl

Version: 1.4

Type: local

Agent: windows

Family: Windows

Published: 12/19/2023

Updated: 1/26/2024

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: 7.4

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

CVSS Score Source: CVE-2023-6864

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:mozilla:firefox_esr

Required KB Items: Mozilla/Firefox/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 12/19/2023

Vulnerability Publication Date: 12/19/2023

Reference Information

CVE: CVE-2023-6856, CVE-2023-6857, CVE-2023-6858, CVE-2023-6859, CVE-2023-6860, CVE-2023-6861, CVE-2023-6862, CVE-2023-6863, CVE-2023-6864, CVE-2023-6865, CVE-2023-6867

IAVA: 2023-A-0702-S

Detections

Analytics