CVE-2021-3672

CVE Details

Release Date:	2021-11-23
Impact:	None	What is this?

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

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

CVSS v3 metrics

Base Score:	5.6
Vector String:	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Version:	3.0
Attack 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