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Mozilla Foundation Security Advisory 2019-10

Security vulnerabilities fixed in Firefox 60.6.1

Announced
March 22, 2019
Impact
critical
Products
Firefox ESR
Fixed in
  • Firefox ESR 60.6.1

#CVE-2019-9810: IonMonkey MArraySlice has incorrect alias information

Reporter
Richard Zhu and Amat Cama via Trend Micro's Zero Day Initiative
Impact
critical
Description

Incorrect alias information in IonMonkey JIT compiler for Array.prototype.slice method may lead to missing bounds check and a buffer overflow.

References

#CVE-2019-9813: Ionmonkey type confusion with __proto__ mutations

Reporter
Niklas Baumstark via Trend Micro's Zero Day Initiative
Impact
critical
Description

Incorrect handling of __proto__ mutations may lead to type confusion in IonMonkey JIT code and can be leveraged for arbitrary memory read and write.

References