Detections
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CVE-2019-9813

high

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-2019:1144

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

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

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

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

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

Details

Source: Mitre, NVD

Published: 2019-04-26

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.5401