GHSA-75JP-VQ8X-H4CQ

Vulnerability from github – Published: 2024-03-07 17:26 – Updated: 2025-06-04 00:35
VLAI?
Summary
Wasmi Out-of-bounds Write for host to Wasm calls with more than 128 Parameters
Details

Summary

In the WASMI Interpreter, an Out-of-bounds Buffer Write will arise arise if the host calls or resumes a Wasm function with more parameters than the default limit (128), as it will surpass the stack value. This doesn’t affect calls from Wasm to Wasm, only from host to Wasm.

Impact

After conducting an analysis of the dependent Polkadot systems of wasmi: Pallet Contracts, Parity Signer, and Smoldot, we have found that none on those systems have been affected by the issue as they are calling host to Wasm function with a small limited amount of parameters always.

Mitigations

If you are using wasmi betwen version 0.15.0 and 0.31.0, please update it to the 0.31.1 patch release that we just published.

Workarounds

Ensure no more than 128 parameters can be pass in a call from the host to a Wasm function.

References

Patch PR:

Special thanks

Special thanks to Stellar Development Foundation for reporting this security vulnerability.

Severity ?
7.3 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 0.31.0"
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "wasmi"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.15.0"
            },
            {
              "fixed": "0.31.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-28123"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-03-07T17:26:27Z",
    "nvd_published_at": "2024-03-21T02:52:23Z",
    "severity": "HIGH"
  },
  "details": "### Summary\n\nIn the WASMI Interpreter, an [Out-of-bounds Buffer Write](https://cwe.mitre.org/data/definitions/787.html) will arise arise if the host calls or resumes a Wasm function with more parameters than the default limit (128), as it will surpass the stack value. This doesn\u2019t affect calls from Wasm to Wasm, only from host to Wasm.\n\n### Impact\n\nAfter conducting an analysis of the dependent Polkadot systems of `wasmi`: [Pallet Contracts](https://github.com/paritytech/polkadot-sdk/tree/master/substrate/frame/contracts), [Parity Signer](https://github.com/paritytech/parity-signer), and [Smoldot](https://github.com/smol-dot/smoldot), we have found that none on those systems have been affected by the issue as they are calling host to Wasm function with a small limited amount of parameters always. \n\n### Mitigations\n\nIf you are using `wasmi` betwen version 0.15.0 and 0.31.0, please update it to the [0.31.1](https://github.com/paritytech/wasmi/releases/tag/v0.31.1) patch release that we just published.\n\n### Workarounds\n\nEnsure no more than 128 parameters can be pass in a call from the host to a Wasm function. \n\n### References\n\nPatch PR: \u003cPR\u003e\n\n### Special thanks\n\nSpecial thanks to Stellar Development Foundation for reporting this security vulnerability.",
  "id": "GHSA-75jp-vq8x-h4cq",
  "modified": "2025-06-04T00:35:09Z",
  "published": "2024-03-07T17:26:27Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/wasmi-labs/wasmi/security/advisories/GHSA-75jp-vq8x-h4cq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-28123"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wasmi-labs/wasmi/commit/f7b3200e9f3dc9e2cbca966cb255c228453c792f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/wasmi-labs/wasmi"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wasmi-labs/wasmi/releases/tag/v0.31.1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Wasmi Out-of-bounds Write for host to Wasm calls with more than 128 Parameters"
}


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