Detections
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Alpine: multiple cryptsetup packages: security update to 2.4.3-r0

medium Tenable Cloud Security Plugin ID 423780

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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.
 (CVE-2021-4122)

See Also

https://security.alpinelinux.org/vuln/CVE-2021-4122

Plugin Details

Severity: Medium

ID: 423780

Version: Revision 1.8

Type: Local

Published: 4/4/2025

Updated: 7/2/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.63

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:C/A:N

CVSS Score Source: CVE-2021-4122

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.8

Vector: CVSS:3.0/AV:P/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 1/22/2022

Reference Information

CVE: CVE-2021-4122