CVE-2019-9813

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. This vulnerability affects Firefox < 66.0.1, Firefox ESR < 60.6.1, and Thunderbird < 60.6.1.

References

https://access.redhat.com/errata/RHSA-2019:0966

https://access.redhat.com/errata/RHSA-2019:1144

https://bugzilla.mozilla.org/show_bug.cgi?id=1538006

https://www.mozilla.org/security/advisories/mfsa2019-09/

https://www.mozilla.org/security/advisories/mfsa2019-10/

https://www.mozilla.org/security/advisories/mfsa2019-12/

Details

Risk Information

CVSS v2

CVSS v3