Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tpm2-Tools Project | Tpm2-Tools | < 4.3.2 |
| Redhat | Enterprise Linux | 8.0 |
| Fedoraproject | Fedora | 33 |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1964427Issue TrackingPatchThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://bugzilla.redhat.com/show_bug.cgi?id=1964427Issue TrackingPatchThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
FAQ
What is CVE-2021-3565?
CVE-2021-3565 is a vulnerability with a CVSS score of 5.9 (MEDIUM). 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 r...
How severe is CVE-2021-3565?
CVE-2021-3565 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-3565?
Check the references section above for vendor advisories and patch information. Affected products include: Tpm2-Tools Project Tpm2-Tools, Redhat Enterprise Linux, Fedoraproject Fedora.