Security advisory

{
  "id": "477852f8bb42960801cc132c74c634d81f57d7f14971fbe94171ea889c4a7195",
  "url": "https://osv.dev/vulnerability/CVE-2021-3406",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-3406",
    "summary": "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.",
    "evidence": "osv:CVE-2021-3406",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2021-3406",
      "aliases": [
        "CVE-2021-3406",
        "GHSA-78f8-6c68-375m"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/keylime/keylime",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "bda0b0771ce64b8a70b9c9ae8846d4bd40c54b18"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:keylime:keylime:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "5.8.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v5.8.1",
            "5.8.1",
            "5.8.0",
            "v4.0.1",
            "5.7.3",
            "5.7.2",
            "5.7.1",
            "5.7.0",
            "5.6.2",
            "5.6.1",
            "5.6.0",
            "5.5.0",
            "5.4.1",
            "5.4.0",
            "5.3.1",
            "5.3.0",
            "5.2.0",
            "5.1.0",
            "5.0.0",
            "v4.0.0",
            "v3.1.1",
            "v3.1.0",
            "v3.0.0",
            "v2.3.4",
            "v2.3.3",
            "v2.3.2",
            "v2.3.1",
            "v2.3",
            "v2.2",
            "v2.1.1",
            "v2.1",
            "v2.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3406.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:45.307886229Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YAWKEF2LVXUME266T6RNRVBGAD375QAT/",
        "https://github.com/keylime/keylime/security/advisories/GHSA-78f8-6c68-375m",
        "https://bugzilla.redhat.com/show_bug.cgi?id=1932469"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "34"
                  },
                  {
                    "last_affected": "34"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-3406",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 386094,
  "published_at": "2021-02-25T20:15:11.707+00:00"
}