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rustsec-2020-0113
Vulnerability from osv_rustsec
Published
2020-10-31 12:00
Modified
2023-06-13 13:10
Summary
AtomicOption should have Send + Sync bound on its type argument.
Details

In the affected versions of this crate, AtomicOption<T> unconditionally implements Sync.

This allows programmers to move non-Sync types across thread boundaries (e.g. Rc<T>, Arc<Cell<T>>), which can lead to data races and undefined behavior. It is also possible to send non-Send types like std::sync::MutexGuard to other threads, which can lead to undefined behavior.


{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "memory-corruption",
          "thread-safety"
        ],
        "cvss": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "atomic-option",
        "purl": "pkg:cargo/atomic-option"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "CVE-2020-36219",
    "GHSA-8gf5-q9p9-wvmc"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "In the affected versions of this crate,\n`AtomicOption\u003cT\u003e` unconditionally implements `Sync`.\n\nThis allows programmers to move non-Sync types across thread boundaries (e.g. `Rc\u003cT\u003e`, `Arc\u003cCell\u003cT\u003e\u003e`), which can lead to data races and undefined behavior. \nIt is also possible to send non-Send types like `std::sync::MutexGuard` to other threads, which can lead to undefined behavior.",
  "id": "RUSTSEC-2020-0113",
  "modified": "2023-06-13T13:10:24Z",
  "published": "2020-10-31T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/atomic-option"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2020-0113.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/reem/rust-atomic-option/issues/4"
    }
  ],
  "related": [],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "AtomicOption should have Send + Sync bound on its type argument."
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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