CVE-2021-43538

CVE Details

Release Date:

2021-12-08

Description

By misusing a race in our notification code, an attacker could have forcefully hidden the notification for pages that had received full screen and pointer lock access, which could have been used for spoofing attacks. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

See more information about CVE-2021-43538 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:	4.3	Base Metrics:	AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Access Vector:	Network	Attack Complexity:	Low
Privileges Required:	None	User Interaction:	Required
Scope:	Unchanged	Confidentiality Impact:	None
Integrity Impact:	Low	Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (firefox)	ELSA-2021-5014	2021-12-08
Oracle Linux version 7 (thunderbird)	ELSA-2021-5046	2021-12-10
Oracle Linux version 8 (firefox)	ELSA-2021-5013	2021-12-09
Oracle Linux version 8 (thunderbird)	ELSA-2021-5045	2021-12-10

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