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Insufficient Verification of Data Authenticity Affecting cryptsetup package, versions <2:2.3.7-1+deb11u1

0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Integrity High

    Threat Intelligence

    EPSS 0.07% (30th percentile)
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NVD
4.3 medium
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SUSE
5.9 medium
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Red Hat
5.9 medium

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  • Snyk ID SNYK-DEBIAN11-CRYPTSETUP-2339991
  • published 14 Jan 2022
  • disclosed 24 Aug 2022
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Introduced: 14 Jan 2022

CVE-2021-4122 Open this link in a new tab
CWE-345 Open this link in a new tab

How to fix?

Upgrade Debian:11 cryptsetup to version 2:2.3.7-1+deb11u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream cryptsetup package and not the cryptsetup package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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.