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Red Hat: CVE-2021-4122: CVE-2021-4122 cryptsetup: disable encryption via header rewrite (Multiple Advisories)

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Red Hat: CVE-2021-4122: CVE-2021-4122 cryptsetup: disable encryption via header rewrite (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
02/01/2022
Created
02/03/2022
Added
02/02/2022
Modified
12/15/2023

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.

Solution(s)

  • redhat-upgrade-cryptsetup
  • redhat-upgrade-cryptsetup-debuginfo
  • redhat-upgrade-cryptsetup-debugsource
  • redhat-upgrade-cryptsetup-devel
  • redhat-upgrade-cryptsetup-libs
  • redhat-upgrade-cryptsetup-libs-debuginfo
  • redhat-upgrade-cryptsetup-reencrypt
  • redhat-upgrade-cryptsetup-reencrypt-debuginfo
  • redhat-upgrade-integritysetup
  • redhat-upgrade-integritysetup-debuginfo
  • redhat-upgrade-veritysetup
  • redhat-upgrade-veritysetup-debuginfo

References

  • CVE-2021-4122
  • RHSA-2022:0370

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