CVE-2020-12387

CVE Details

Release Date:

2020-05-26

Description

A race condition when running shutdown code for Web Worker led to a use-after-free vulnerability. This resulted in a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0.

See more information about CVE-2020-12387 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-2020-2036	2020-07-07
Oracle Linux version 6 (thunderbird)	ELSA-2020-2049	2020-07-07
Oracle Linux version 7 (firefox)	ELSA-2020-2037	2020-05-07
Oracle Linux version 7 (thunderbird)	ELSA-2020-2050	2020-05-12
Oracle Linux version 8 (firefox)	ELSA-2020-2031	2020-05-09
Oracle Linux version 8 (thunderbird)	ELSA-2020-2046	2020-05-12

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