KLA11613 Multiple vulnerabilities in Mozilla Thunderbird

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

Below is a complete list of vulnerabilities:

1. Incorrect temporary files access configuration of Mozilla updater service can be exploited locally to bypass security restrictions;
2. Use-after-free vulnerability in DocShell can be exploited remotely via specially designed website to cause denial of service;
3. Use-after-free vulnerability in worker destruction can be exploited remotely via specially designed website to cause denial of service;
5. Stack corruption due to incorrect number of arguments in WebRTC code can be exploited remotely via specially designed website to cause denial of service;
6. Race condition vulnerability in Resist Fingerprinting can be exploited remotely via specially designed website to cause denial of service;
7. Out of bounds write vulnerability in NSS can be exploited remotely via specially designed website to cause denial of service;
8. Buffer overflow vulnerability in plain Firefox text serializer can be exploited remotely via specially designed website to cause denial of service;

Original advisories

mfsa2019-38

Related products

Mozilla-Thunderbird

CVE list

CVE-2019-17012 high

CVE-2019-17010 high

CVE-2019-13722 warning

CVE-2019-17009 warning

CVE-2019-17011 high

CVE-2019-17005 high

CVE-2019-17008 high

CVE-2019-11745 high

Solution

Update to the latest version

Download Mozilla 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.

• 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.

Affected Products

• Mozilla Thunderbird earlier than 68.3