rustsec-2025-0022
Vulnerability from osv_rustsec
Published
2025-04-04 12:00
Modified
2025-10-28 06:02
Summary
Use-After-Free in `Md::fetch` and `Cipher::fetch`
Details

When a Some(...) value was passed to the properties argument of either of these functions, a use-after-free would result.

In practice this would nearly always result in OpenSSL treating the properties as an empty string (due to CString::drop's behavior).

The maintainers thank quitbug for reporting this vulnerability to us.

To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "memory-corruption"
        ],
        "cvss": null,
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [
            "openssl::cipher::Cipher::fetch",
            "openssl::md::Md::fetch"
          ],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "openssl",
        "purl": "pkg:cargo/openssl"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.10.39"
            },
            {
              "fixed": "0.10.72"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "GHSA-4fcv-w3qc-ppgg"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "When a `Some(...)` value was passed to the `properties` argument of either of these functions, a use-after-free would result.\n\nIn practice this would nearly always result in OpenSSL treating the properties as an empty string (due to `CString::drop`\u0027s behavior).\n\nThe maintainers thank [quitbug](https://github.com/quitbug/) for reporting this vulnerability to us.",
  "id": "RUSTSEC-2025-0022",
  "modified": "2025-10-28T06:02:18Z",
  "published": "2025-04-04T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/openssl"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2025-0022.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sfackler/rust-openssl/pull/2390"
    }
  ],
  "related": [],
  "severity": [],
  "summary": "Use-After-Free in `Md::fetch` and `Cipher::fetch`"
}


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