rustsec-2021-0051
Vulnerability from osv_rustsec
Published
2021-01-31 12:00
Modified
2023-06-13 13:10
Summary
KeyValueReader passes uninitialized memory to Read instance
Details

The KeyValueReader type in affected versions of this crate set up an uninitialized memory buffer and passed them to be read in to a user-provided Read instance.

The Read instance could read uninitialized memory and cause undefined behavior and miscompilations.

This issue was fixed in commit dd59b30 by zero-initializing the buffers before passing them.


{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "memory-exposure"
        ],
        "cvss": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "outer_cgi",
        "purl": "pkg:cargo/outer_cgi"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            },
            {
              "fixed": "0.2.1"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "CVE-2021-30454",
    "GHSA-6vmq-jh76-hq43"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "The `KeyValueReader` type in affected versions of this crate set up an\nuninitialized memory buffer and passed them to be read in to a user-provided\n`Read` instance.\n\nThe `Read` instance could read uninitialized memory and cause undefined\nbehavior and miscompilations.\n\nThis issue was fixed in commit [dd59b30](https://github.com/SolraBizna/outer_cgi/commit/dd59b3066e616a08e756f72de8dc3ab11b7036c4)\nby zero-initializing the buffers before passing them.",
  "id": "RUSTSEC-2021-0051",
  "modified": "2023-06-13T13:10:24Z",
  "published": "2021-01-31T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/outer_cgi"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2021-0051.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/SolraBizna/outer_cgi/issues/1"
    }
  ],
  "related": [],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "KeyValueReader passes uninitialized memory to Read instance"
}


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Sightings

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