CVE-2021-3406
CRITICALCVSS 9.8/10EPSS 0.66%
Last modified
CVE-2021-3406 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A flaw was found in keylime 5.8.1 and older. The issue in the Keylime agent and registrar code invalidates the cryptographic chain of trust from the Endorsement Key certificate to agent attestations.. EPSS estimates a 0.66% chance of exploitation in the next 30 days.
Description
A flaw was found in keylime 5.8.1 and older. The issue in the Keylime agent and registrar code invalidates the cryptographic chain of trust from the Endorsement Key certificate to agent attestations.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Keylime | Keylime | <= 5.8.1 |
| Fedoraproject | Fedora | 34 |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1932469Issue Tracking, Third Party Advisory
- https://github.com/keylime/keylime/security/advisories/GHSA-78f8-6c68-375mThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1932469Issue Tracking, Third Party Advisory
- https://github.com/keylime/keylime/security/advisories/GHSA-78f8-6c68-375mThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-3406?
A flaw was found in keylime 5.8.1 and older. The issue in the Keylime agent and registrar code invalidates the cryptographic chain of trust from the Endorsement Key certificate to agent attestations.
How severe is CVE-2021-3406?
CVE-2021-3406 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.66% probability of exploitation in the next 30 days.
How do I fix CVE-2021-3406?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-3406?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST