Vulnerability Monitor

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CVE-2021-4122

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.

Published

2022-08-24T16:15:09.427

Last Modified

2024-11-21T06:36:56.853

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 4.3 (MEDIUM)

Weaknesses

Type: Secondary
CWE-345
Type: Primary
CWE-345

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	cryptsetup_project	cryptsetup	< 2.3.7	Yes
Application	cryptsetup_project	cryptsetup	< 2.4.3	Yes

References

https://access.redhat.com/security/cve/CVE-2021-4122 Third Party Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=2031859 Permissions Required, Third Party Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=2032401 Issue Tracking, Third Party Advisory ([email protected])
https://gitlab.com/cryptsetup/cryptsetup/-/commit/0113ac2d889c5322659ad0596d4cfc6da53e356c Patch, Third Party Advisory ([email protected])
https://mirrors.edge.kernel.org/pub/linux/utils/cryptsetup/v2.4/v2.4.3-ReleaseNotes Release Notes, Vendor Advisory ([email protected])
https://access.redhat.com/security/cve/CVE-2021-4122 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=2031859 Permissions Required, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=2032401 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://gitlab.com/cryptsetup/cryptsetup/-/commit/0113ac2d889c5322659ad0596d4cfc6da53e356c Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://mirrors.edge.kernel.org/pub/linux/utils/cryptsetup/v2.4/v2.4.3-ReleaseNotes Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)