rustsec-2021-0039
Vulnerability from osv_rustsec
Published
2021-01-04 12:00
Modified
2023-06-13 13:10
Summary
panic in user-provided `Endian` impl triggers double drop of T
Details

Affected versions of the crate does not guard against panic from user-provided impl of Endian trait, which is a safe trait that users can implement. If a user-provided implementation of the Endian trait panics, double-drop is triggered due to the duplicated ownership of T created by ptr::read().

Double-drop (or double free) can cause memory corruption in the heap.


{
  "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": "endian_trait",
        "purl": "pkg:cargo/endian_trait"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "CVE-2021-29929",
    "GHSA-vpw8-43wm-rxw5"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "Affected versions of the crate does not guard against panic from user-provided impl of `Endian` trait, which is a safe trait that users can implement.\nIf a user-provided implementation of the `Endian` trait panics, double-drop is triggered due to the duplicated ownership of `T` created by `ptr::read()`.\n\nDouble-drop (or double free) can cause memory corruption in the heap.",
  "id": "RUSTSEC-2021-0039",
  "modified": "2023-06-13T13:10:24Z",
  "published": "2021-01-04T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/endian_trait"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2021-0039.html"
    },
    {
      "type": "REPORT",
      "url": "https://gitlab.com/myrrlyn/endian_trait/-/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": "panic in user-provided `Endian` impl triggers double drop of T"
}


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