CVE-2021-4122
4.3 · MEDIUMOverview
CVE-2021-4122 is a medium-severity vulnerability affecting cryptsetup_project cryptsetup. It was published on August 24, 2022 and has a CVSS 3.1 base score of 4.3 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 4.3, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from cryptsetup_project. Update cryptsetup to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| cryptsetup_project | cryptsetup | >= 0, < 2.3.7 | Affected |
References
Frequently Asked Questions
What is CVE-2021-4122?
CVE-2021-4122 is a medium-severity vulnerability affecting cryptsetup_project cryptsetup. It was published on August 24, 2022 and has a CVSS 3.1 base score of 4.3 (MEDIUM).
How severe is CVE-2021-4122?
This vulnerability has a CVSS 3.1 base score of 4.3, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-4122?
Check the references section for vendor advisories and patches from cryptsetup_project. Update cryptsetup to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-4122?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-4122 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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