Security advisory

{
  "id": "026a5c7e63cf1cfc1c88ad56450d0c8f3d38fc74241281fc063cb358a8b9d470",
  "url": "https://osv.dev/vulnerability/CVE-2019-18960",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-18960",
    "summary": "Firecracker vsock implementation buffer overflow in versions 0.18.0 and 0.19.0. This can result in potentially exploitable crashes.",
    "evidence": "osv:CVE-2019-18960",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2019-18960",
      "aliases": [
        "CVE-2019-18960"
      ],
      "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/firecracker-microvm/firecracker",
              "type": "GIT",
              "events": [
                {
                  "introduced": "1e1cb6f8f8003e0bdce11d265f0feb23249a03f6"
                },
                {
                  "last_affected": "effaab05e4b02b25c578273d966e04c98d2cf2e1"
                },
                {
                  "fixed": "bf1239ea99a70486ef38dbaf36dca6fb74561c4a"
                },
                {
                  "fixed": "9b9030d9f4fcfd3e808166ae8ee2147a9d9249df"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:amazon:firecracker:0.18.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.18.0"
                      },
                      {
                        "last_affected": "0.18.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:amazon:firecracker:0.19.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.19.0"
                      },
                      {
                        "last_affected": "0.19.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "bf1239ea99a70486ef38dbaf36dca6fb74561c4a"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v0.18.1"
                  },
                  {
                    "range": [
                      {
                        "fixed": "9b9030d9f4fcfd3e808166ae8ee2147a9d9249df"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v0.19.1"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.18.0",
            "0.19.0",
            "v0.19.0",
            "v0.18.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-18960.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:56.640610953Z",
      "provider": "osv",
      "references": [
        "https://github.com/firecracker-microvm/firecracker/issues/1462",
        "https://github.com/firecracker-microvm/firecracker/releases",
        "https://github.com/firecracker-microvm/firecracker/releases/tag/v0.18.1",
        "https://github.com/firecracker-microvm/firecracker/releases/tag/v0.19.1"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-18960",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 382370,
  "published_at": "2019-12-11T13:15:11.827+00:00"
}