gsd-2020-26240
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
Go Ethereum, or "Geth", is the official Golang implementation of the Ethereum protocol. An ethash mining DAG generation flaw in Geth before version 1.9.24 could cause miners to erroneously calculate PoW in an upcoming epoch (estimated early January, 2021). This happened on the ETC chain on 2020-11-06. This issue is relevant only for miners, non-mining nodes are unaffected. This issue is fixed as of 1.9.24
Aliases
Aliases
CVE-2020-26240


To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-26240",
    "description": "Go Ethereum, or \"Geth\", is the official Golang implementation of the Ethereum protocol. An ethash mining DAG generation flaw in Geth before version 1.9.24 could cause miners to erroneously calculate PoW in an upcoming epoch (estimated early January, 2021). This happened on the ETC chain on 2020-11-06. This issue is relevant only for miners, non-mining nodes are unaffected. This issue is fixed as of 1.9.24",
    "id": "GSD-2020-26240"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-26240"
      ],
      "details": "Go Ethereum, or \"Geth\", is the official Golang implementation of the Ethereum protocol. An ethash mining DAG generation flaw in Geth before version 1.9.24 could cause miners to erroneously calculate PoW in an upcoming epoch (estimated early January, 2021). This happened on the ETC chain on 2020-11-06. This issue is relevant only for miners, non-mining nodes are unaffected. This issue is fixed as of 1.9.24",
      "id": "GSD-2020-26240",
      "modified": "2023-12-13T01:22:08.825553Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2020-26240",
        "STATE": "PUBLIC",
        "TITLE": "Erroneous Proof of Work calculation in geth"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "go-ethereum",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "\u003c 1.9.24"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "ethereum"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Go Ethereum, or \"Geth\", is the official Golang implementation of the Ethereum protocol. An ethash mining DAG generation flaw in Geth before version 1.9.24 could cause miners to erroneously calculate PoW in an upcoming epoch (estimated early January, 2021). This happened on the ETC chain on 2020-11-06. This issue is relevant only for miners, non-mining nodes are unaffected. This issue is fixed as of 1.9.24"
          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-682: Incorrect Calculation"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://blog.ethereum.org/2020/11/12/geth_security_release/",
            "refsource": "MISC",
            "url": "https://blog.ethereum.org/2020/11/12/geth_security_release/"
          },
          {
            "name": "https://github.com/ethereum/go-ethereum/security/advisories/GHSA-v592-xf75-856p",
            "refsource": "CONFIRM",
            "url": "https://github.com/ethereum/go-ethereum/security/advisories/GHSA-v592-xf75-856p"
          },
          {
            "name": "https://github.com/ethereum/go-ethereum/pull/21793",
            "refsource": "MISC",
            "url": "https://github.com/ethereum/go-ethereum/pull/21793"
          },
          {
            "name": "https://github.com/ethereum/go-ethereum/commit/d990df909d7839640143344e79356754384dcdd0",
            "refsource": "MISC",
            "url": "https://github.com/ethereum/go-ethereum/commit/d990df909d7839640143344e79356754384dcdd0"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-v592-xf75-856p",
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003cv1.9.24",
          "affected_versions": "All versions before 1.9.24",
          "cvss_v2": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-682",
            "CWE-937"
          ],
          "date": "2020-12-03",
          "description": "Go Ethereum, or \"Geth\", is the official Golang implementation of the Ethereum protocol. An ethash mining DAG generation flaw in Geth could cause miners to erroneously calculate PoW in an upcoming epoch.",
          "fixed_versions": [
            "v1.9.24"
          ],
          "identifier": "CVE-2020-26240",
          "identifiers": [
            "CVE-2020-26240",
            "GHSA-v592-xf75-856p"
          ],
          "not_impacted": "All versions starting from 1.9.24",
          "package_slug": "go/github.com/ethereum/go-ethereum",
          "pubdate": "2020-11-25",
          "solution": "Upgrade to version 1.9.24 or above.",
          "title": "Incorrect Calculation",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-26240",
            "https://blog.ethereum.org/2020/11/12/geth_security_release/"
          ],
          "uuid": "b4991af6-3585-4ba6-a38e-2035efddefe1",
          "versions": [
            {
              "commit": {
                "sha": "cc05b050df5f88e80bb26aaf6d2f339c49c2d702",
                "tags": [
                  "v1.9.24"
                ],
                "timestamp": "20201112201015"
              },
              "number": "v1.9.24"
            }
          ]
        },
        {
          "affected_range": "\u003cv1.9.24",
          "affected_versions": "All versions before 1.9.24",
          "cvss_v2": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-682",
            "CWE-937"
          ],
          "date": "2020-12-03",
          "description": "Go Ethereum, or \"Geth\", is the official Golang implementation of the Ethereum protocol. An ethash mining DAG generation flaw in Geth could cause miners to erroneously calculate PoW in an upcoming epoch (estimated early January ). This happened on the ETC chain on . This issue is relevant only for miners, non-mining nodes are unaffected.",
          "fixed_versions": [
            "v1.9.24"
          ],
          "identifier": "CVE-2020-26240",
          "identifiers": [
            "CVE-2020-26240",
            "GHSA-v592-xf75-856p"
          ],
          "not_impacted": "All versions starting from 1.9.24",
          "package_slug": "go/github.com/ethereum/go-ethereum/cmd/evm",
          "pubdate": "2020-11-25",
          "solution": "Upgrade to version 1.9.24 or above.",
          "title": "Incorrect Calculation",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-26240",
            "https://blog.ethereum.org/2020/11/12/geth_security_release/"
          ],
          "uuid": "ed2e9f21-60a0-485f-b413-4271ce5506d8",
          "versions": [
            {
              "commit": {
                "sha": "cc05b050df5f88e80bb26aaf6d2f339c49c2d702",
                "tags": [
                  "v1.9.24"
                ],
                "timestamp": "20201112201015"
              },
              "number": "v1.9.24"
            }
          ]
        },
        {
          "affected_range": "\u003c1.9.24",
          "affected_versions": "All versions before 1.9.24",
          "cvss_v2": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-682",
            "CWE-937"
          ],
          "date": "2021-06-29",
          "description": "Go Ethereum, or \"Geth\", is the official Golang implementation of the Ethereum protocol. An ethash mining DAG generation flaw in Geth before version 1.9.24 could cause miners to erroneously calculate PoW in an upcoming epoch (estimated early January, 2021). This happened on the ETC chain on 2020-11-06. This issue is relevant only for miners, non-mining nodes are unaffected. This issue is fixed as of 1.9.24",
          "fixed_versions": [
            "1.9.24"
          ],
          "identifier": "CVE-2020-26240",
          "identifiers": [
            "GHSA-v592-xf75-856p",
            "CVE-2020-26240"
          ],
          "not_impacted": "All versions starting from 1.9.24",
          "package_slug": "go/github.com/ethereum/go-ethereum/consensus",
          "pubdate": "2021-06-29",
          "solution": "Upgrade to version 1.9.24 or above.",
          "title": "Incorrect Calculation",
          "urls": [
            "https://github.com/ethereum/go-ethereum/security/advisories/GHSA-v592-xf75-856p",
            "https://nvd.nist.gov/vuln/detail/CVE-2020-26240",
            "https://github.com/ethereum/go-ethereum/pull/21793",
            "https://github.com/ethereum/go-ethereum/commit/d990df909d7839640143344e79356754384dcdd0",
            "https://github.com/advisories/GHSA-v592-xf75-856p"
          ],
          "uuid": "b3ab95e2-925e-4380-866c-b3b63849a784"
        },
        {
          "affected_range": "\u003cv1.9.24",
          "affected_versions": "All versions before 1.9.24",
          "cvss_v2": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-682",
            "CWE-937"
          ],
          "date": "2020-12-03",
          "description": "Go Ethereum, or \"Geth\", is the official Golang implementation of the Ethereum protocol. An ethash mining DAG generation flaw in Geth could cause miners to erroneously calculate PoW in an upcoming epoch. This happened on the ETC chain on . This issue is relevant only for miners, non-mining nodes are unaffected.",
          "fixed_versions": [
            "v1.9.24"
          ],
          "identifier": "CVE-2020-26240",
          "identifiers": [
            "CVE-2020-26240",
            "GHSA-v592-xf75-856p"
          ],
          "not_impacted": "All versions starting from 1.9.24",
          "package_slug": "go/github.com/ethereum/go-ethereum/eth",
          "pubdate": "2020-11-25",
          "solution": "Upgrade to version 1.9.24 or above.",
          "title": "Incorrect Calculation",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-26240",
            "https://blog.ethereum.org/2020/11/12/geth_security_release/"
          ],
          "uuid": "5a88cfaa-62cc-41ac-9ef7-dea2e187bee7",
          "versions": [
            {
              "commit": {
                "sha": "cc05b050df5f88e80bb26aaf6d2f339c49c2d702",
                "tags": [
                  "v1.9.24"
                ],
                "timestamp": "20201112201015"
              },
              "number": "v1.9.24"
            }
          ]
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:ethereum:go_ethereum:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.9.24",
                "vulnerable": true
              }
            ],
            "operator": "OR"
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        "description": {
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              "value": "Go Ethereum, or \"Geth\", is the official Golang implementation of the Ethereum protocol. An ethash mining DAG generation flaw in Geth before version 1.9.24 could cause miners to erroneously calculate PoW in an upcoming epoch (estimated early January, 2021). This happened on the ETC chain on 2020-11-06. This issue is relevant only for miners, non-mining nodes are unaffected. This issue is fixed as of 1.9.24"
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              "url": "https://github.com/ethereum/go-ethereum/security/advisories/GHSA-v592-xf75-856p"
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            },
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              "tags": [
                "Vendor Advisory"
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              "url": "https://blog.ethereum.org/2020/11/12/geth_security_release/"
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          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2020-12-03T15:16Z",
      "publishedDate": "2020-11-25T02:15Z"
    }
  }
}


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