Security advisory

{
  "id": "3bbe671706d306c60ea6b46cd958e4429c2a5dc2f9125cafc4ccc457cb848e70",
  "url": "https://osv.dev/vulnerability/CVE-2021-42219",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-42219",
    "summary": "Go-Ethereum v1.10.9 was discovered to contain an issue which allows attackers to cause a denial of service (DoS) via sending an excessive amount of messages to a node. This is caused by missing memory in the component /ethash/algorithm.go.",
    "evidence": "osv:CVE-2021-42219",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-42219",
      "aliases": [
        "CVE-2021-42219",
        "GHSA-vrcc-g6vj-mh5w"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/ethereum/go-ethereum",
              "type": "GIT",
              "events": [
                {
                  "introduced": "eae3b1946a276ac099e0018fc792d9e8c3bfda6d"
                },
                {
                  "last_affected": "eae3b1946a276ac099e0018fc792d9e8c3bfda6d"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:ethereum:go_ethereum:1.10.9:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.10.9"
                      },
                      {
                        "last_affected": "1.10.9"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.10.9",
            "v1.10.9"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-42219.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:54.484952894Z",
      "provider": "osv",
      "references": [
        "https://docs.google.com/document/d/1dYFSpNZPC0OV-n1mMqdc269u9yYU1XQy/edit?usp=sharing&ouid=112110745137218798745&rtpof=true&sd=true"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-42219",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 438178,
  "published_at": "2022-03-17T00:15:07.813+00:00"
}