{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "1.10.9"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "eae3b1946a276ac099e0018fc792d9e8c3bfda6d"
            }
          ],
          "repo": "https://github.com/ethereum/go-ethereum",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "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.",
  "id": "CVE-2021-42219",
  "modified": "2026-03-13T21:51:50.455519706Z",
  "published": "2022-03-17T00:15:07.813Z",
  "references": [
    {
      "type": "EVIDENCE",
      "url": "https://docs.google.com/document/d/1dYFSpNZPC0OV-n1mMqdc269u9yYU1XQy/edit?usp=sharing\u0026ouid=112110745137218798745\u0026rtpof=true\u0026sd=true"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}