KLA12522 Multiple vulnerabilities in Mozilla Thunderbird

Multiple vulnerabilities were found in Mozilla Thunderbird. Malicious users can exploit these vulnerabilities to spoof user interface, obtain sensitive information, bypass security restrictions, gain privileges, cause denial of service, execute arbitrary code.

Below is a complete list of vulnerabilities:

1. Fullscreen notification bypass using popups can be exploited to spoof user interface.
2. Leaking browser history with CSS variables can be exploited to obtain sensitive information.
3. Security vulnerability in email can be exploited to bypass security restrictions.
4. An elevation of privilege vulnerability in iframe Sandbox can be exploited remotely to gain privileges.
5. Improper input validation in Speech Synthesis feature can be exploited to cause denial of service.
6. Memory safety vulnerability can be exploited to execute arbitrary code.
7. Security vulnerability in reader mode can be exploited to bypass security restrictions.
8. Bypassing permission prompt in nested browsing contexts can be exploited to bypass security restrictions.

Original advisories

MFSA2022-18

Related products

Mozilla-Thunderbird

CVE list

CVE-2022-29917 critical

CVE-2022-29911 high

CVE-2022-29909 critical

CVE-2022-29914 high

CVE-2022-29912 high

CVE-2022-29916 high

CVE-2022-1520 warning

CVE-2022-29913 high

Solution

Update to the latest version

Download Thunderbird

Impacts

• ACE

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

• OSI

Obtain sensitive information. Exploitation of vulnerabilities with this impact can lead to capturing by abuser information, critical for user or system.

• DoS

Denial of service. Exploitation of vulnerabilities with this impact can lead to loss of system availability or critical functional fault.

• SB

Security bypass. Exploitation of vulnerabilities with this impact can lead to performing actions restricted by current security settings.

• PE

Privilege escalation. Exploitation of vulnerabilities with this impact can lead to performing by abuser actions, which are normally disallowed for current role.

• SUI

Spoof user interface. Exploitation of vulnerabilities with this impact can lead to changes in user interface to beguile user into inaccurate behavior.

Affected Products

• Mozilla Thunderbird earlier than 91.9