KLA11712 Multiple vulnerabilities in Mozilla Firefox ESR

Multiple vulnerabilities were found in Mozilla Firefox ESR. Malicious users can exploit these vulnerabilities to cause denial of service.

Below is a complete list of vulnerabilities:

1. Use after free vulnerability in nsDocShell destructor can be exploited to cause denial of service.
2. Use after free vulnerability in ReadableStream can be exploited to cause denial of service.

Original advisories

MFSA2020-11

Exploitation

Public exploits exist for this vulnerability.

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.

Related products

Mozilla-Firefox-ESR

CVE list

CVE-2020-6819 critical

CVE-2020-6820 critical

Solution

Update to the latest version

Download Mozilla Firefox ESR

Impacts

• DoS

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

Affected Products

• Mozilla Firefox ESR earlier than 68.6.1