medium4.3
CVE-2021-4122
It was found that a specially crafted LUKS header could trick cryptsetup into disabling encryption during the recovery of the device.
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Cryptsetup Project | Cryptsetup | before 2.3.7 from 2.4.0 before 2.4.3 |
Weakness classification
References
- NVD record
- CVE.org record
- https://access.redhat.com/security/cve/CVE-2021-4122
- https://bugzilla.redhat.com/show_bug.cgi?id=2031859
- https://bugzilla.redhat.com/show_bug.cgi?id=2032401
- https://gitlab.com/cryptsetup/cryptsetup/-/commit/0113ac2d889c5322659ad0596d4cfc6da53e356c
- https://mirrors.edge.kernel.org/pub/linux/utils/cryptsetup/v2.4/v2.4.3-ReleaseNotes
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html