{
  "schema_version": "1.4.0",
  "id": "GHSA-qwpm-85r5-4m77",
  "modified": "2022-05-24T17:41:41Z",
  "published": "2022-05-24T17:41:41Z",
  "aliases": [
    "CVE-2020-24837"
  ],
  "details": "An integer underflow has been found in the latest version of ZCFees. The variables 'currPeriodIdx' and 'lastPeriodExecIdx' are both unsigned integers, and the result of the minus operation may be a negative integer which leads to an underflow. The attackers can modify the current timestamp of the transaction somehow and block the execution of the process function.",
  "severity": [],
  "affected": [],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-24837"
    },
    {
      "type": "WEB",
      "url": "https://etherscan.io/address/0x9d79c6e2a0222b9ac7bfabc447209c58fe9e0dcc#code"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-191"
    ],
    "severity": "HIGH",
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-02-10T16:15:00Z"
  }
}