CVE-2020-6819

CVE Details

Release Date:	2020-04-24
Impact:	None	What is this?

Description

Under certain conditions, when running the nsDocShell destructor, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird < 68.7.0, Firefox < 74.0.1, and Firefox ESR < 68.6.1.

See more information about CVE-2020-6819 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:	8.1
Vector String:	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Version:	3.0
Attack Vector:	Network
Attack Complexity:	High
Privileges Required:	None
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	High
Integrity Impact:	High
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (firefox)	ELSA-2020-1339	2020-07-07
Oracle Linux version 6 (thunderbird)	ELSA-2020-1488	2020-07-07
Oracle Linux version 7 (firefox)	ELSA-2020-1338	2020-04-11
Oracle Linux version 7 (thunderbird)	ELSA-2020-1489	2020-04-17
Oracle Linux version 8 (firefox)	ELSA-2020-1341	2020-04-09
Oracle Linux version 8 (thunderbird)	ELSA-2020-1495	2020-04-18