CVE-2021-3565
5.9 · MEDIUMOverview
CVE-2021-3565 is a medium-severity vulnerability affecting tpm2-tools_project tpm2-tools. It was published on June 4, 2021 and has a CVSS 3.1 base score of 5.9 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
A flaw was found in tpm2-tools in versions before 5.1.1 and before 4.3.2. tpm2_import used a fixed AES key for the inner wrapper, potentially allowing a MITM attacker to unwrap the inner portion and reveal the key being imported. The highest threat from this vulnerability is to data confidentiality.
Remediation
Check the references section for vendor advisories and patches from tpm2-tools_project. Update tpm2-tools 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 |
|---|---|---|---|
| tpm2-tools_project | tpm2-tools | >= 0, < 4.3.2 | Affected |
References
Frequently Asked Questions
What is CVE-2021-3565?
CVE-2021-3565 is a medium-severity vulnerability affecting tpm2-tools_project tpm2-tools. It was published on June 4, 2021 and has a CVSS 3.1 base score of 5.9 (MEDIUM).
How severe is CVE-2021-3565?
This vulnerability has a CVSS 3.1 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-3565?
Check the references section for vendor advisories and patches from tpm2-tools_project. Update tpm2-tools 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-2021-3565?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-3565 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
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