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.
History

Wed, 14 Oct 2026 11:30:00 +0000

Type Values Removed Values Added
References

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2022-08-24T15:08:58.000Z

Updated: 2026-10-14T10:04:04.609Z

Reserved: 2021-12-15T00:00:00.000Z

Link: CVE-2021-4122

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

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

Modified: 2026-10-14T11:16:54.753

Link: CVE-2021-4122

cve-icon Redhat

Severity : Moderate

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

Links: CVE-2021-4122 - Bugzilla