CVE-2019-25220
Vulnerability from cvelistv5
Published
2024-11-18 00:00
Modified
2024-11-18 16:28
Summary
Bitcoin Core before 24.0.1 allows remote attackers to cause a denial of service (daemon crash) via a flood of low-difficulty header chains (aka a "Chain Width Expansion" attack) because a node does not first verify that a presented chain has enough work before committing to store it.
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website


{
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          {
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              "cpe:2.3:a:bitcoin:bitcoin_core:*:*:*:*:*:*:*:*"
            ],
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                "status": "affected",
                "version": "0",
                "versionType": "custom"
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              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
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            "other": {
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                "options": [
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                  },
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-18T16:17:07.914367Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
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                "description": "CWE-770 Allocation of Resources Without Limits or Throttling",
                "lang": "en",
                "type": "CWE"
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        ],
        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
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        }
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      "references": [
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          "url": "https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures"
        },
        {
          "url": "https://bitcoincore.org/en/2024/09/18/disclose-headers-oom"
        },
        {
          "url": "https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2019-October/017354.html"
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  },
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    "datePublished": "2024-11-18T00:00:00",
    "dateReserved": "2024-11-18T00:00:00",
    "dateUpdated": "2024-11-18T16:28:52.209Z",
    "state": "PUBLISHED"
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      "id": "CVE-2019-25220",
      "lastModified": "2024-11-18T17:35:01.780",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.6}]}",
      "published": "2024-11-18T04:15:04.107",
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      "sourceIdentifier": "cve@mitre.org",
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    },
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    "vulnrichment": {
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}


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