Mozilla Thunderbird < 52.9

critical Nessus Plugin ID 275625

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Synopsis

A mail client installed on the remote macOS or Mac OS X host is affected by multiple vulnerabilities.

Description

The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 52.9. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2018-18 advisory.

- Mozilla developers and community members Alex Gaynor, Christoph Diehl, Christian Holler, Jason Kratzer, David Major, Jon Coppeard, Nicolas B. Pierron, Jason Kratzer, Marcia Knous, and Ronald Crane reported memory safety bugs present in Firefox 60, Firefox ESR 60, Firefox ESR 52.8, and Thunderbird 52.8. 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-2018-5188)

- Windows 10 does not warn users before opening executable files with the <code>SettingContent-ms</code> extension even when they have been downloaded from the internet and have the Mark of the Web. Without the warning, unsuspecting users unfamiliar with this new file type might run an unwanted executable. This also allows a WebExtension with the limited <code>downloads.open</code> permission to execute arbitrary code without user interaction on Windows 10 systems Note: this issue only affects Windows operating systems. Other operating systems are unaffected. (CVE-2018-12368)

- A buffer overflow can occur when rendering canvas content while adjusting the height and width of the <code><canvas></code> element dynamically, causing data to be written outside of the currently computed boundaries. This results in a potentially exploitable crash. (CVE-2018-12359)

- A use-after-free vulnerability can occur when deleting an <code>input</code> element during a mutation event handler triggered by focusing that element. This results in a potentially exploitable crash.
(CVE-2018-12360)

- Decrypted S/MIME parts, when included in HTML crafted for an attack, can leak plaintext when included in a a HTML reply/forward. (CVE-2018-12372)

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 Thunderbird version 52.9 or later.

Plugin Details

Severity: Critical

ID: 275625

File Name: macos_thunderbird_52_9.nasl

Version: 1.1

Type: local

Agent: macosx

Family: MacOS X Local Security Checks

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: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 7.3

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

CVSS Score Source: CVE-2018-12368

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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:P/RL:O/RC:C

CVSS Score Source: CVE-2018-5188

Vulnerability Information

CPE: cpe:/a:mozilla:thunderbird

Required KB Items: installed_sw/Mozilla Thunderbird

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/3/2018

Vulnerability Publication Date: 6/26/2018

Reference Information

CVE: CVE-2018-12359, CVE-2018-12360, CVE-2018-12362, CVE-2018-12363, CVE-2018-12364, CVE-2018-12365, CVE-2018-12366, CVE-2018-12368, CVE-2018-12372, CVE-2018-12373, CVE-2018-12374, CVE-2018-5188

IAVA: 2018-A-0200-S

Detections

Analytics