This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2021-4122 →

DEBIAN-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...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 cryptsetup

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.4.3-1"}]}]

Debian:13 cryptsetup

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.4.3-1"}]}]

Debian:14 cryptsetup

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.4.3-1"}]}]

References

advisory security-tracker.debian.org