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CVE-2021-4122

Published: Aug 24, 2022

Modified: Aug 3, 2024

PUBLISHED

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.

Vendor	Product	Versions
n/a	cryptsetup	affected `Fixed in cryptsetup 2.4.3, cryptsetup 2.3.7`

Weaknesses (CWE)

References

https://bugzilla.redhat.com/show_bug.cgi?id=2031859

x_refsource_MISC

https://mirrors.edge.kernel.org/pub/linux/utils/cryptsetup/v2.4/v2.4.3-ReleaseNotes

x_refsource_MISC

https://gitlab.com/cryptsetup/cryptsetup/-/commit/0113ac2d889c5322659ad0596d4cfc6da53e356c

x_refsource_MISC

https://bugzilla.redhat.com/show_bug.cgi?id=2032401

x_refsource_MISC

https://access.redhat.com/security/cve/CVE-2021-4122

x_refsource_MISC

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