CVE-2021-4122

CVE Details

Release Date:	2022-08-24
Impact:	None	What is this?

Description

It was found that a specially crafted LUKS header could trick cryptsetup into disabling encryption during the recovery of the device. An attacker with physical access to the medium, such as a flash disk, could use this flaw to force a user into permanently disabling the encryption layer of that medium.

See more information about CVE-2021-4122 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:	4.3
Vector String:	CVSS:3.0/AV:P/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Version:	3.0
Attack Vector:	Physical
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 8 (cryptsetup)	ELSA-2022-0370	2022-02-02