GHSA-5X36-7567-3CW6

Vulnerability from github – Published: 2023-02-28 20:31 – Updated: 2023-02-28 20:31
VLAI?
Summary
partial_sort contains Out-of-bounds Read in release mode
Details

Affected versions of this crate were using a debug assertion to validate the last parameter of partial_sort(). This would allow invalid inputs to cause an out-of-bounds read instead of immediately panicking, when compiled without debug assertions.

All writes are bounds-checked, so the out-of-bounds memory access is read-only. This also means that the first attempted out-of-bounds write will panic, limiting the possible reads.

The accessible region is further limited by an initial bounds-checked read at (last / 2) - 1, i.e., it is proportional to the size of the vector.

This bug has been fixed in v0.2.0.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "partial_sort"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.2.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-02-28T20:31:05Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "Affected versions of this crate were using a debug assertion to validate the `last` parameter of `partial_sort()`. This would allow invalid inputs to cause an out-of-bounds read instead of immediately panicking, when compiled without debug assertions.\n\nAll writes are bounds-checked, so the out-of-bounds memory access is read-only. This also means that the first attempted out-of-bounds write will panic, limiting the possible reads.\n\nThe accessible region is further limited by an initial bounds-checked read at `(last / 2) - 1`, i.e., it is proportional to the size of the vector.\n\nThis bug has been fixed in v0.2.0.\n",
  "id": "GHSA-5x36-7567-3cw6",
  "modified": "2023-02-28T20:31:05Z",
  "published": "2023-02-28T20:31:05Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/sundy-li/partial_sort/issues/7"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/sundy-li/partial_sort"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2023-0016.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "partial_sort contains Out-of-bounds Read in release mode"
}


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