KLA11792 Multiple vulnerabilities in Mozilla Firefox

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

Below is a complete list of vulnerabilities:

1. Memory corruption vulnerability can be exploited to execute arbitrary code.
2. Timing attack vulnerability in NSS library can be exploited to obtain sensitive information.
3. Use after free vulnerability in SharedWorkerService can be exploited to potentially cause denial of service.
4. GPU memory vulnerability can be exploited to spoof user interface.
5. URL spoofing vulnerability in address bar can be exploited to perform domain spoofing.
6. URL spoofing vulnerability in URL component can be exploited to perform domain spoofing.
7. Type confusion vulnerability in JS can be exploited to cause denial of service.

Original advisories

MFSA2020-20

Related products

Mozilla-Firefox

CVE list

CVE-2020-12411 critical

CVE-2020-12399 warning

CVE-2020-12410 critical

CVE-2020-12405 warning

CVE-2020-12407 warning

CVE-2020-12408 warning

CVE-2020-12409 high

CVE-2020-12406 critical

Solution

Update to the latest version

Download Firefox

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.

• 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 Firefox earlier than 77