rustsec-2023-0047
Vulnerability from osv_rustsec
Published
2023-06-26 12:00
Modified
2023-07-29 17:20
Summary
impl `FromMdbValue` for bool is unsound
Details

The implementation of FromMdbValue have several unsoundness issues. First of all, it allows to reinterpret arbitrary bytes as a bool and could make undefined behavior happen with safe function. Secondly, it allows transmuting pointer without taking memory layout into consideration. The details of reproducing the bug were included in url above.

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{
  "affected": [
    {
      "database_specific": {
        "categories": [],
        "cvss": null,
        "informational": "unsound"
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "lmdb-rs",
        "purl": "pkg:cargo/lmdb-rs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "GHSA-f9g6-fp84-fv92"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "The implementation of `FromMdbValue` have several unsoundness issues. First of all, it allows to reinterpret arbitrary bytes as a bool and could make undefined behavior happen with safe function. Secondly, it allows transmuting pointer without taking memory layout into consideration. The details of reproducing the bug were included in url above.",
  "id": "RUSTSEC-2023-0047",
  "modified": "2023-07-29T17:20:00Z",
  "published": "2023-06-26T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/lmdb-rs"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2023-0047.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/vhbit/lmdb-rs/issues/67"
    }
  ],
  "related": [],
  "severity": [],
  "summary": "impl `FromMdbValue` for bool is unsound"
}


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