{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "orml-rewards"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-248"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-02-14T17:26:08Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "## Summary\nA vulnerability in the `add_share` function of the **Rewards** pallet (part of the ORML repository) can lead to an uncaught Rust panic when handling user-provided input exceeding the `u128` range.\n\n## Affected Components\n- **ORML Rewards** pallet (`rewards/src/lib.rs`)\n- Any Substrate-based chain using ORML Rewards with `add_share` accepting unvalidated large `u128` inputs\n\n## Technical Details\n- `add_share` performs arithmetic on user-supplied values (`add_amount`) of type `T::Share` (mapped to `u128` in Acala).\n- If `add_amount` is large enough (e.g., `i128::MAX`), the intermediate result may overflow and panic on the cast to `u128`.\n- Validation occurs only after arithmetic, enabling a crafted input to trigger an overflow.\n\n## Impact\nA malicious user submitting a specially crafted extrinsic can cause a panic in the runtime:\n- **Denial of Service** by crashing the node process.\n- **Potential for invalid blocks** produced by validators.\n\n## Likelihood\nThis issue is exploitable in production if there exists at least one rewards pool where reward tokens exceed twice the collateral tokens, allowing sufficiently large multiplication to exceed `u128` bounds.\n\n## Remediation\n- This issue is fixed in https://github.com/open-web3-stack/open-runtime-module-library/pull/1016\n\n## Backport\n\nThe patch have been backported to following release branches:\n- polkadot-stable2407\n- polkadot-stable2409\n\nA 1.0.1 patch release is made with this fix.",
  "id": "GHSA-5v93-9mqw-p9mh",
  "modified": "2025-02-14T17:26:08Z",
  "published": "2025-02-14T17:26:08Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/open-web3-stack/open-runtime-module-library/security/advisories/GHSA-5v93-9mqw-p9mh"
    },
    {
      "type": "WEB",
      "url": "https://github.com/open-web3-stack/open-runtime-module-library/pull/1016"
    },
    {
      "type": "WEB",
      "url": "https://github.com/open-web3-stack/open-runtime-module-library/commit/6720fcd92f44e5f204741b04fdef3b67b0fcf6bc"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/open-web3-stack/open-runtime-module-library"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Uncaught Panic in ORML Rewards Pallet"
}