CVE-2021-3672

CVE Details

Release Date:

2021-11-23

Description

A flaw was found in c-ares library, where a missing input validation check of host names returned by DNS (Domain Name Servers) can lead to output of wrong hostnames which might potentially lead to Domain Hijacking. The highest threat from this vulnerability is to confidentiality and integrity as well as system availability.

See more information about CVE-2021-3672 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:	5.6	Base Metrics:	AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Access Vector:	Network	Attack Complexity:	High
Privileges Required:	None	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	Low
Integrity Impact:	Low	Availability Impact:	Low

Errata information

Platform	Errata	Release Date
Oracle Linux version 8 (c-ares)	ELSA-2022-2043	2022-05-17
Oracle Linux version 8 (nodejs)	ELSA-2021-3623	2021-09-22
Oracle Linux version 8 (nodejs)	ELSA-2021-3666	2021-09-27
Oracle Linux version 8 (nodejs-nodemon)	ELSA-2021-3623	2021-09-22
Oracle Linux version 8 (nodejs-nodemon)	ELSA-2021-3666	2021-09-27
Oracle Linux version 8 (nodejs-packaging)	ELSA-2021-3623	2021-09-22
Oracle Linux version 8 (nodejs-packaging)	ELSA-2021-3666	2021-09-27

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