Mozilla Thunderbird < 60.7

critical Nessus Plugin ID 125359

Synopsis

A mail client installed on the remote Windows host is affected by multiple vulnerabilities.

Description

The version of Thunderbird installed on the remote Windows host is prior to 60.7. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2019-15 advisory.

- A use-after-free vulnerability can occur in the chrome event handler when it is freed while still in use.
This results in a potentially exploitable crash. (CVE-2019-9820)

- If hyperthreading is not disabled, a timing attack vulnerability exists, similar to previous Spectre attacks. Apple has shipped macOS 10.14.5 with an option to disable hyperthreading in applications running untrusted code in a thread through a new sysctl. Firefox now makes use of it on the main thread and any worker threads. Note: users need to update to macOS 10.14.5 in order to take advantage of this change.
(CVE-2019-9815)

- A possible vulnerability exists where type confusion can occur when manipulating JavaScript objects in object groups, allowing for the bypassing of security checks within these groups. Note: this vulnerability has only been demonstrated with <code>UnboxedObjects</code>, which are disabled by default on all supported releases. (CVE-2019-9816)

- Images from a different domain can be read using a canvas object in some circumstances. This could be used to steal image data from a different site in violation of same-origin policy. (CVE-2019-9817)

- A race condition is present in the crash generation server used to generate data for the crash reporter.
This issue can lead to a use-after-free in the main process, resulting in a potentially exploitable crash and a sandbox escape. Note: this vulnerability only affects Windows. Other operating systems are unaffected. (CVE-2019-9818)

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 60.7 or later.

See Also

https://www.mozilla.org/en-US/security/advisories/mfsa2019-15/

Plugin Details

Severity: Critical

ID: 125359

File Name: mozilla_thunderbird_60_7.nasl

Version: 1.7

Type: local

Agent: windows

Family: Windows

Published: 5/23/2019

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: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2019-9820

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

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: 5/21/2019

Vulnerability Publication Date: 2/4/2019

Reference Information

CVE: CVE-2018-18511, CVE-2019-11691, CVE-2019-11692, CVE-2019-11693, CVE-2019-11694, CVE-2019-11698, CVE-2019-5798, CVE-2019-7317, CVE-2019-9797, CVE-2019-9800, CVE-2019-9815, CVE-2019-9816, CVE-2019-9817, CVE-2019-9818, CVE-2019-9819, CVE-2019-9820

BID: 107009, 107363, 107486, 108098, 108418

MFSA: 2019-15