Mozilla Thunderbird < 102.3

critical Nessus Plugin ID 165299


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


The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 102.3. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2022-42 advisory.

- During iframe navigation, certain pages did not have their FeaturePolicy fully initialized leading to a bypass that leaked device permissions into untrusted subdocuments. (CVE-2022-40959)

- Concurrent use of the URL parser with non-UTF-8 data was not thread-safe. This could lead to a use-after- free causing a potentially exploitable crash. (CVE-2022-40960)

- By injecting a cookie with certain special characters, an attacker on a shared subdomain which is not a secure context could set and thus overwrite cookies from a secure context, leading to session fixation and other attacks. (CVE-2022-40958)

- When injecting an HTML base element, some requests would ignore the CSP's base-uri settings and accept the injected element's base instead. (CVE-2022-40956)

- Inconsistent data in instruction and data cache when creating wasm code could lead to a potentially exploitable crash. This bug only affects Thunderbird on ARM64 platforms. (CVE-2022-40957)

- When saving or opening an email attachment on macOS, Thunderbird did not set attribute on the received file. If the received file was an application and the user attempted to open it, then the application was started immediately without asking the user to confirm.

- Mozilla developers Nika Layzell, Timothy Nikkel, Jeff Muizelaar, Sebastian Hengst, Andreas Pehrson, and the Mozilla Fuzzing Team reported memory safety bugs present in Thunderbird 102.2. 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-2022-40962)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.


Upgrade to Mozilla Thunderbird version 102.3 or later.

See Also

Plugin Details

Severity: Critical

ID: 165299

File Name: macos_thunderbird_102_3.nasl

Version: 1.4

Type: local

Agent: macosx

Published: 9/22/2022

Updated: 9/23/2022

Supported Sensors: Nessus Agent

Risk Information


Risk Factor: High

Score: 8.4


Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS Score Source: CVE-2022-40962


Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*

Required KB Items: MacOSX/Thunderbird/Installed

Exploit Ease: No known exploits are available

Patch Publication Date: 9/20/2022

Vulnerability Publication Date: 9/20/2022

Reference Information

CVE: CVE-2022-40962, CVE-2022-40956, CVE-2022-40957, CVE-2022-40958, CVE-2022-40959, CVE-2022-40960, CVE-2022-3155, CVE-2022-3266

IAVA: 2022-A-0386