CVE-2021-4122

Severity CVSS v4.0:

Pending analysis

Type:

CWE-345 Insufficient Verification of Data Authenticity

Publication date:

24/08/2022

Last modified:

29/08/2022

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.

Impact

Vector 3.x

CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 4.30 MEDIUM
Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Attack Vector (AV): Physical
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

Base Score 3.x

4.30

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:cryptsetup_project:cryptsetup::::::::		2.3.7 (excluding)
cpe:2.3:a:cryptsetup_project:cryptsetup::::::::	2.4.0 (including)	2.4.3 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2021-4122

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools