KLA11451 Multiple vulnerabilities in Mozilla Firefox ESR

Multiple vulnerabilities were found in Mozilla Firefox ESR. Malicious users can exploit these vulnerabilities to execute arbitrary code and bypass security restrictions.

Below is a complete list of vulnerabilities:

1. Buffer overflow vulnerability in IonMonkey JIT compiler can be exploited remotely to execute arbitrary code;
2. Type confusion vulnerability in IonMonkey JIT compiler can be exploited remotely to bypass security restrictions.

Original advisories

MFSA2019-10

Exploitation

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

Related products

Mozilla-Firefox-ESR

CVE list

CVE-2019-9810 high

CVE-2019-9813 high

Solution

Update to the latest version

Download Mozilla Firefox ESR

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.

• SB

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

Affected Products

• Mozilla Firefox ESR earlier than 60.6.1