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CVE
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CVE-2021-4122Date: (C)2022-03-28   (M)2023-12-22


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.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 4.3CVSS Score :
Exploit Score: 0.7Exploit Score:
Impact Score: 3.6Impact Score:
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: PHYSICALAccess Vector:
Attack Complexity: LOWAccess Complexity:
Privileges Required: NONEAuthentication:
User Interaction: REQUIREDConfidentiality:
Scope: UNCHANGEDIntegrity:
Confidentiality: NONEAvailability:
Integrity: HIGH 
Availability: NONE 
  
Reference:
https://access.redhat.com/security/cve/CVE-2021-4122
https://bugzilla.redhat.com/show_bug.cgi?id=2031859
https://bugzilla.redhat.com/show_bug.cgi?id=2032401
https://gitlab.com/cryptsetup/cryptsetup/-/commit/0113ac2d889c5322659ad0596d4cfc6da53e356c
https://mirrors.edge.kernel.org/pub/linux/utils/cryptsetup/v2.4/v2.4.3-ReleaseNotes

CWE    1
CWE-345
OVAL    14
oval:org.secpod.oval:def:121476
oval:org.secpod.oval:def:121427
oval:org.secpod.oval:def:506683
oval:org.secpod.oval:def:78416
...

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