CVEvulnerability
CVE-2021-4122
4.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2022-08-24
- Last modified
- 2026-10-14
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 4.3 MEDIUM — CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- Weaknesses
- CWE-345
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.
Affected configurations
• cryptsetup project cryptsetup (< 2.3.7)
• cryptsetup project cryptsetup (>= 2.4.0 < 2.4.3)
Related
Weakness · CWE (1)
- CWE-345 Insufficient Verification of Data Authenticity weakness
References
- https://access.redhat.com/security/cve/CVE-2021-4122 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2031859 Permissions Required, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2032401 Issue Tracking, Third Party Advisory
- https://gitlab.com/cryptsetup/cryptsetup/-/commit/0113ac2d889c5322659ad0596d4cfc6da53e356c Patch, Third Party Advisory
- https://mirrors.edge.kernel.org/pub/linux/utils/cryptsetup/v2.4/v2.4.3-ReleaseNotes Release Notes, Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2021-4122 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2031859 Permissions Required, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2032401 Issue Tracking, Third Party Advisory
- https://gitlab.com/cryptsetup/cryptsetup/-/commit/0113ac2d889c5322659ad0596d4cfc6da53e356c Patch, Third Party Advisory
- https://mirrors.edge.kernel.org/pub/linux/utils/cryptsetup/v2.4/v2.4.3-ReleaseNotes Release Notes, Vendor Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html cert-portal.siemens.com