{
  "schema_version": "1.3.1",
  "id": "GO-2024-2818",
  "modified": "0001-01-01T00:00:00Z",
  "published": "0001-01-01T00:00:00Z",
  "aliases": [
    "CVE-2024-34478",
    "GHSA-3jgf-r68h-xfqm"
  ],
  "summary": "Consensus failures in github.com/btcsuite/btcd",
  "details": "Incorrect implementation of the consensus rules outlined in BIP 68 and BIP 112 making btcd susceptible to consensus failures. Specifically, it uses the transaction version as a signed integer when it is supposed to be treated as unsigned. There can be a chain split and loss of funds.",
  "affected": [
    {
      "package": {
        "name": "github.com/btcsuite/btcd",
        "ecosystem": "Go"
      },
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.24.0"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "imports": [
          {
            "path": "github.com/btcsuite/btcd/blockchain",
            "symbols": [
              "BlockChain.CalcSequenceLock",
              "BlockChain.CheckConnectBlockTemplate",
              "BlockChain.ProcessBlock",
              "BlockChain.calcSequenceLock",
              "ValidateTransactionScripts",
              "txValidator.Validate"
            ]
          },
          {
            "path": "github.com/btcsuite/btcd/txscript",
            "symbols": [
              "Engine.Execute",
              "Engine.Step",
              "opcodeCheckSequenceVerify"
            ]
          }
        ]
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-34478"
    },
    {
      "type": "WEB",
      "url": "https://delvingbitcoin.org/t/disclosure-btcd-consensus-bugs-due-to-usage-of-signed-transaction-version/455"
    },
    {
      "type": "WEB",
      "url": "https://github.com/btcsuite/btcd/blob/e4c88c3a3ecb1813529bf3dddc7a865bd418a6b8/blockchain/chain.go#L383C1-L392C3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/btcsuite/btcd/blob/e4c88c3a3ecb1813529bf3dddc7a865bd418a6b8/txscript/opcode.go#L1172C1-L1178C3"
    },
    {
      "type": "FIX",
      "url": "https://github.com/btcsuite/btcd/pull/1981"
    }
  ],
  "credits": [
    {
      "name": "Niklas Gögge"
    }
  ],
  "database_specific": {
    "url": "https://pkg.go.dev/vuln/GO-2024-2818"
  }
}