Ubuntu 16.04 LTS / 18.04 LTS / 19.10 / 20.04 : Thunderbird vulnerabilities (USN-4373-1)

critical Nessus Plugin ID 136894

Synopsis

The remote Ubuntu host is missing a security-related patch.

Description

Multiple security issues were discovered in Thunderbird. If a user were tricked in to opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, or execute arbitrary code. (CVE-2020-6831, CVE-2020-12387, CVE-2020-12395)

It was discovered that the Devtools' 'Copy as cURL' feature did not properly escape the HTTP POST data of a request. If a user were tricked in to using the 'Copy as cURL' feature to copy and paste a command with specially crafted data in to a terminal, an attacker could potentially exploit this to obtain sensitive information from local files. (CVE-2020-12392)

It was discovered that Thunderbird did not correctly handle Unicode whitespace characters within the From email header. An attacker could potentially exploit this to spoof the sender email address that Thunderbird displays. (CVE-2020-12397).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected thunderbird package.

See Also

https://usn.ubuntu.com/4373-1/

Plugin Details

Severity: Critical

ID: 136894

File Name: ubuntu_USN-4373-1.nasl

Version: 1.8

Type: local

Agent: unix

Published: 5/27/2020

Updated: 12/30/2020

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: E:POC/RL:OF/RC:C

CVSS Score Source: CVE-2020-12395

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: E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:thunderbird, cpe:/o:canonical:ubuntu_linux:16.04, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:19.10, cpe:/o:canonical:ubuntu_linux:20.04

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/26/2020

Vulnerability Publication Date: 5/22/2020

Reference Information

CVE: CVE-2020-12387, CVE-2020-12392, CVE-2020-12395, CVE-2020-12397, CVE-2020-6831

USN: 4373-1

IAVA: 2020-A-0190-S