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.
Advisories
Source ID Title
Debian DSA Debian DSA DSA-5070-1 cryptsetup security update
EUVD EUVD EUVD-2021-33997 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.
Ubuntu USN Ubuntu USN USN-5286-1 cryptsetup vulnerability
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-03T17:16:04.245Z

Reserved: 2021-12-15T00:00:00

Link: CVE-2021-4122

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-08-24T16:15:09.427

Modified: 2024-11-21T06:36:56.853

Link: CVE-2021-4122

cve-icon Redhat

Severity : Moderate

Publid Date: 2022-01-13T00:00:00Z

Links: CVE-2021-4122 - Bugzilla

cve-icon OpenCVE Enrichment

No data.