Mozilla Thunderbird < 68.9.0

high Nessus Plugin ID 137086
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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 68.9.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-22 advisory.

- NSS has shown timing differences when performing DSA signatures, which was exploitable and could eventually leak private keys. (CVE-2020-12399)

- When browsing a malicious page, a race condition in our SharedWorkerService could occur and lead to a potentially exploitable crash. (CVE-2020-12405)

- Mozilla developer Iain Ireland discovered a missing type check during unboxed objects removal, resulting in a crash. We presume that with enough effort that it could be exploited to run arbitrary code. (CVE-2020-12406)

- Mozilla developers Tom Tung and Karl Tomlinson reported memory safety bugs present in Firefox 68.8. 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-2020-12410)

- If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unencrypted connection, causing email data to be sent without protection. (CVE-2020-12398)

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

Solution

Upgrade to Mozilla Thunderbird version 68.9.0 or later.

See Also

https://www.mozilla.org/en-US/security/advisories/mfsa2020-22/

Plugin Details

Severity: High

ID: 137086

File Name: macos_thunderbird_68_9_0.nasl

Version: 1.5

Type: local

Agent: macosx

Published: 6/4/2020

Updated: 7/13/2020

Dependencies: macosx_thunderbird_installed.nasl

Risk Information

CVSS Score Source: CVE-2020-12410

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 6.9

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

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

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:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*

Required KB Items: MacOSX/Thunderbird/Installed

Exploit Ease: No known exploits are available

Patch Publication Date: 6/2/2020

Vulnerability Publication Date: 6/2/2020

Reference Information

CVE: CVE-2020-12405, CVE-2020-12406, CVE-2020-12410, CVE-2020-12399, CVE-2020-12398

MFSA: 2020-22