github - ghsa-cm2c-8c7c-974f

GHSA-CM2C-8C7C-974F

Vulnerability from github – Published: 2022-05-24 19:02 – Updated: 2022-05-24 19:02

Details

Bitcoin Core 0.12.0 through 0.21.1 does not properly implement the replacement policy specified in BIP125, which makes it easier for attackers to trigger a loss of funds, or a denial of service attack against downstream projects such as Lightning network nodes. An unconfirmed child transaction with nSequence = 0xff_ff_ff_ff, spending an unconfirmed parent with nSequence <= 0xff_ff_ff_fd, should be replaceable because there is inherited signaling by the child transaction. However, the actual PreChecks implementation does not enforce this. Instead, mempool rejects the replacement attempt of the unconfirmed child transaction.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-31876"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-05-13T22:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Bitcoin Core 0.12.0 through 0.21.1 does not properly implement the replacement policy specified in BIP125, which makes it easier for attackers to trigger a loss of funds, or a denial of service attack against downstream projects such as Lightning network nodes. An unconfirmed child transaction with nSequence = 0xff_ff_ff_ff, spending an unconfirmed parent with nSequence \u003c= 0xff_ff_ff_fd, should be replaceable because there is inherited signaling by the child transaction. However, the actual PreChecks implementation does not enforce this. Instead, mempool rejects the replacement attempt of the unconfirmed child transaction.",
  "id": "GHSA-cm2c-8c7c-974f",
  "modified": "2022-05-24T19:02:31Z",
  "published": "2022-05-24T19:02:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-31876"
    },
    {
      "type": "WEB",
      "url": "https://bitcoinops.org/en/newsletters/2021/05/12"
    },
    {
      "type": "WEB",
      "url": "https://bitcoinops.org/en/topics/replace-by-fee"
    },
    {
      "type": "WEB",
      "url": "https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures#CVE-2021-31876"
    },
    {
      "type": "WEB",
      "url": "https://github.com/bitcoin/bitcoin"
    },
    {
      "type": "WEB",
      "url": "https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2021-May/018893.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2021-31876 (GCVE-0-2021-31876)

Vulnerability from cvelistv5 – Published: 2021-05-13 21:03 – Updated: 2024-08-03 23:10

Summary

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://en.bitcoin.it/wiki/Common_Vulnerabilities…	x_refsource_MISC
	https://bitcoinops.org/en/topics/replace-by-fee/	x_refsource_MISC
	https://github.com/bitcoin/bitcoin	x_refsource_MISC
	https://lists.linuxfoundation.org/pipermail/bitco…	x_refsource_MISC
	https://bitcoinops.org/en/newsletters/2021/05/12/	x_refsource_MISC

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{
  "containers": {
    "adp": [
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        "providerMetadata": {
          "dateUpdated": "2024-08-03T23:10:31.041Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures#CVE-2021-31876"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bitcoinops.org/en/topics/replace-by-fee/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/bitcoin/bitcoin"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2021-May/018893.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bitcoinops.org/en/newsletters/2021/05/12/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "vendor": "n/a",
          "versions": [
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
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              "lang": "en",
              "type": "text"
            }
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      ],
      "providerMetadata": {
        "dateUpdated": "2021-05-13T21:03:38",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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      },
      "references": [
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          ],
          "url": "https://bitcoinops.org/en/topics/replace-by-fee/"
        },
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          ],
          "url": "https://github.com/bitcoin/bitcoin"
        },
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          ],
          "url": "https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2021-May/018893.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bitcoinops.org/en/newsletters/2021/05/12/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-31876",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
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            }
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        },
        "problemtype": {
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        },
        "references": {
          "reference_data": [
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              "refsource": "MISC",
              "url": "https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures#CVE-2021-31876"
            },
            {
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              "refsource": "MISC",
              "url": "https://bitcoinops.org/en/topics/replace-by-fee/"
            },
            {
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            },
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            },
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              "url": "https://bitcoinops.org/en/newsletters/2021/05/12/"
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    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-31876",
    "datePublished": "2021-05-13T21:03:38",
    "dateReserved": "2021-04-29T00:00:00",
    "dateUpdated": "2024-08-03T23:10:31.041Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-CM2C-8C7C-974F

CVE-2021-31876 (GCVE-0-2021-31876)

Tags

Sightings

Nomenclature