rustsec-2025-0005
Vulnerability from osv_rustsec
Published
2025-01-13 12:00
Modified
2025-10-28 06:02
Summary
Out of bounds write triggered by crafted coverage data
Details

Function grcov::covdir::get_coverage uses the unsafe function get_unchecked_mut without validating that the index is in bounds.

This results in memory corruption, and could potentially allow arbitrary code execution provided that an attacker can feed the tool crafted coverage data.

To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "memory-corruption"
        ],
        "cvss": null,
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [
            "grcov::covdir::get_coverage"
          ],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "grcov",
        "purl": "pkg:cargo/grcov"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            },
            {
              "fixed": "0.8.21-0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "GHSA-qm2p-4w45-v2vr"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "Function `grcov::covdir::get_coverage` uses the `unsafe` function `get_unchecked_mut`\nwithout validating that the index is in bounds.\n\nThis results in memory corruption, and could potentially allow arbitrary code execution\nprovided that an attacker can feed the tool crafted coverage data.",
  "id": "RUSTSEC-2025-0005",
  "modified": "2025-10-28T06:02:18Z",
  "published": "2025-01-13T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/grcov"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2025-0005.html"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1917475"
    }
  ],
  "related": [],
  "severity": [],
  "summary": "Out of bounds write triggered by crafted coverage data"
}


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