CVE-2020-6820

CVE Details

Release Date:

2020-04-24

Description

Under certain conditions, when handling a ReadableStream, 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-2020-6820 from MITRE CVE dictionary and NIST NVD

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score:	8.1	Base Metrics:	AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Access 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

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team