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RUSTSEC-2021-0042 (CVE-2021-29933)

Vulnerability from osv_rustsec – Published: 2021-01-26 12:00 – Updated: 2023-06-13 13:10 – Source website
VLAI
Summary
insert_many can drop elements twice on panic
Details

Affected versions of insert_many used ptr::copy to move over items in a vector to make space before inserting, duplicating their ownership. It then iterated over a provided Iterator to insert the new items.

If the iterator's .next() method panics then the vector would drop the same elements twice.


{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "memory-corruption"
        ],
        "cvss": "CVSS:3.1/AV:N/AC:L/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": "insert_many",
        "purl": "pkg:cargo/insert_many"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "CVE-2021-29933",
    "GHSA-29hg-r7c7-54fr"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "Affected versions of `insert_many` used `ptr::copy` to move over items in a\nvector to make space before inserting, duplicating their ownership. It then\niterated over a provided `Iterator` to insert the new items.\n\nIf the iterator\u0027s `.next()` method panics then the vector would drop the same\nelements twice.",
  "id": "RUSTSEC-2021-0042",
  "modified": "2023-06-13T13:10:24Z",
  "published": "2021-01-26T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/insert_many"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2021-0042.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/rphmeier/insert_many/issues/1"
    }
  ],
  "related": [],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "insert_many can drop elements twice on panic"
}



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