KLA11450
Multiple vulnerabilities in Mozilla Firefox

Multiple vulnerabilities were found in Mozilla Firefox. 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.

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

Mozilla Firefox earlier than 66.0.1

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MFSA2019-09