CVE-2021-23984

CVE Details

Release Date:

2021-03-31

Description

A malicious extension could have opened a popup window lacking an address bar. The title of the popup lacking an address bar should not be fully controllable, but in this situation was. This could have been used to spoof a website and attempt to trick the user into providing credentials. This vulnerability affects Firefox ESR < 78.9, Thunderbird < 78.9, and Firefox < 87.

See more information about CVE-2021-23984 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:	6.5	Base Metrics:	AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Access Vector:	Network	Attack Complexity:	Low
Privileges Required:	None	User Interaction:	Required
Scope:	Unchanged	Confidentiality Impact:	None
Integrity Impact:	High	Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (firefox)	ELSA-2021-0992	2021-03-25
Oracle Linux version 7 (thunderbird)	ELSA-2021-0996	2021-03-26
Oracle Linux version 8 (firefox)	ELSA-2021-0990	2021-03-26
Oracle Linux version 8 (thunderbird)	ELSA-2021-0993	2021-03-26

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