CVE-2019-9813

CVE Details

Release Date:	2019-04-26
Impact:	Critical	What is this?

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.

See more information about CVE-2019-9813 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	8.8
Vector String:	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Version:	3.0
Attack Vector:	Network
Attack Complexity:	Low
Privileges Required:	None
User Interaction:	Required
Scope:	Unchanged
Confidentiality Impact:	High
Integrity Impact:	High
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (firefox)	ELSA-2019-0672	2019-03-27
Oracle Linux version 6 (thunderbird)	ELSA-2019-0680	2019-03-28
Oracle Linux version 7 (firefox)	ELSA-2019-0671	2019-03-28
Oracle Linux version 7 (thunderbird)	ELSA-2019-0681	2019-03-28
Oracle Linux version 8 (firefox)	ELSA-2019-0966	2019-07-30
Oracle Linux version 8 (thunderbird)	ELSA-2019-1144	2019-07-30