KLA11913 Multiple vulnerabilities in Mozilla Thunderbird

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

Below is a complete list of vulnerabilities:

1. URI vulnerability in WebRTC can be exploited to perform domain spoofing and bypass security restrictions.
2. RSA key generation vulnerability can be exploited to bypass security restrictions and obtain sensitive information.
3. SB vulnerability in AppCache can be exploited to bypass security restrictions.
4. DLL Hijacking vulnerability in webauthn.dll on Windows can be exploited to execute arbitrary code.
5. Use after free vulnerability in WebRTC VideoBroadcaster can be exploited to potentially cause denial of service.
6. Out of bounds read vulnerability Date.parse() component can be exploited to potentially obtain sensitive information.
7. A security bypass vulnerability in X-Frame-Options can be exploited to security bypass restrictions.
8. Memory vulnerability in Firefox can be exploited to execute arbitrary code.
9. Integer overflow vulnerability in nsJPEGEncoder::emptyOutputBuffer component can be exploited to potentially cause denial of service.

Original advisories

MFSA2020-29

Related products

Mozilla-Thunderbird

CVE list

CVE-2020-12424 high

CVE-2020-12425 high

CVE-2020-12416 critical

CVE-2020-12426 critical

CVE-2020-12422 critical

CVE-2020-12423 critical

CVE-2020-12415 high

CVE-2020-12402 warning

CVE-2020-15648 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.

• 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 78