Related Vulnerabilities: CVE-2019-9810  

An incorrect alias information in the IonMonkey JIT compiler of Firefox before 66.0.1 for the Array.prototype.slice method may lead to missing bounds check and a buffer overflow.

Severity Critical

Remote Yes

Type Arbitrary code execution

Description

An incorrect alias information in the IonMonkey JIT compiler of Firefox before 66.0.1 for the Array.prototype.slice method may lead to missing bounds check and a buffer overflow.

AVG-930 firefox 66.0-1 66.0.1-1 Critical Fixed

https://www.mozilla.org/en-US/security/advisories/mfsa2019-09/#CVE-2019-9810
https://bugzilla.mozilla.org/show_bug.cgi?id=1537924