Mozilla Thunderbird < 78.12

high Nessus Plugin ID 151612

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 78.12. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2021-30 advisory.

- If Thunderbird was configured to use STARTTLS for an IMAP connection, and an attacker injected IMAP server responses prior to the completion of the STARTTLS handshake, then Thunderbird didn't ignore the injected data. This could have resulted in Thunderbird showing incorrect information, for example the attacker could have tricked Thunderbird to show folders that didn't exist on the IMAP server. (CVE-2021-29969)

- A malicious webpage could have triggered a use-after-free, memory corruption, and a potentially exploitable crash. This bug only affected Thunderbird when accessibility was enabled. (CVE-2021-29970)

- An out of bounds write in ANGLE could have allowed an attacker to corrupt memory leading to a potentially exploitable crash. (CVE-2021-30547)

- Mozilla developers Valentin Gosu, Randell Jesup, Emil Ghitta, Tyson Smith, and Olli Pettay reported memory safety bugs present in Thunderbird 78.11. 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-2021-29976)

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 78.12 or later.

See Also

https://www.mozilla.org/en-US/security/advisories/mfsa2021-30/

Plugin Details

Severity: High

ID: 151612

File Name: macos_thunderbird_78_12.nasl

Version: 1.3

Type: local

Agent: macosx

Published: 7/13/2021

Updated: 7/16/2021

Supported Sensors: Nessus Agent

Risk Information

CVSS Score Source: CVE-2021-30547

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

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

Vulnerability Information

CPE: cpe:/a:mozilla:thunderbird

Required KB Items: MacOSX/Thunderbird/Installed

Exploit Ease: No known exploits are available

Patch Publication Date: 7/13/2021

Vulnerability Publication Date: 6/8/2021

Reference Information

CVE: CVE-2021-29969, CVE-2021-29970, CVE-2021-29976, CVE-2021-30547

IAVA: 2021-A-0293-S