rustsec-2022-0052
Vulnerability from osv_rustsec
Published
2022-08-26 12:00
Modified
2023-06-13 13:10
Summary
`os_socketaddr` invalidly assumes the memory layout of std::net::SocketAddr
Details

The os_socketaddr crate has assumed std::net::SocketAddrV4 and std::net::SocketAddrV6 have the same memory layout as the system C representation sockaddr. It has simply casted the pointers to convert the socket addresses to the system representation.

These layout were changed into idiomatic rust types in nightly std. Starting from rustc 1.64 the affected versions of this crate will have undefined behaviour.

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{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "memory-corruption"
        ],
        "cvss": null,
        "informational": "unsound"
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "os_socketaddr",
        "purl": "pkg:cargo/os_socketaddr"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            },
            {
              "fixed": "0.2.2"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "GHSA-c439-chv8-8g2j"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "The [`os_socketaddr`](https://crates.io/crates/os_socketaddr) crate has assumed\n`std::net::SocketAddrV4` and `std::net::SocketAddrV6` have the same memory layout as the system C\nrepresentation `sockaddr`. It has simply casted the pointers to convert the socket addresses to the\nsystem representation.\n\nThese layout were [changed into idiomatic rust types](https://github.com/rust-lang/rust/pull/78802)\nin nightly `std`. Starting from rustc 1.64 the affected versions of this crate will have undefined\nbehaviour.",
  "id": "RUSTSEC-2022-0052",
  "modified": "2023-06-13T13:10:24Z",
  "published": "2022-08-26T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/os_socketaddr"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2022-0052.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/a-ba/os_socketaddr/issues/3"
    }
  ],
  "related": [],
  "severity": [],
  "summary": "`os_socketaddr` invalidly assumes the memory layout of std::net::SocketAddr"
}


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