rustsec-2025-0018
Vulnerability from osv_rustsec
Published
2025-03-26 12:00
Modified
2025-10-28 06:02
Summary
Potential out-of-bounds read with a malformed ELF file and the HashTable API.
Details

Affected versions of this crate only validated the index argument of HashTable::get_bucket and HashTable::get_chain against the input-controlled bucket_count and chain_count fields, but not against the size of the ELF section. As a result, a malformed ELF file could trigger out-of-bounds reads in a consumer of the HashTable API by setting these fields to inappropriately large values that would fall outside the relevant hash table section, and by introducing correspondingly out-of-bounds hash table indexes elsewhere in the ELF file.

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{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "memory-exposure"
        ],
        "cvss": null,
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [
            "xmas_elf::hash::HashTable::get_bucket",
            "xmas_elf::hash::HashTable::get_chain"
          ],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "xmas-elf",
        "purl": "pkg:cargo/xmas-elf"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            },
            {
              "fixed": "0.10.0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "GHSA-9cc5-2pq7-hfj8"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "Affected versions of this crate only validated the `index` argument of\n`HashTable::get_bucket` and `HashTable::get_chain` against the input-controlled\n`bucket_count` and `chain_count` fields, but not against the size of the ELF\nsection. As a result, a malformed ELF file could trigger out-of-bounds reads in\na consumer of the HashTable API by setting these fields to inappropriately large\nvalues that would fall outside the relevant hash table section, and by\nintroducing correspondingly out-of-bounds hash table indexes elsewhere in the ELF\nfile.",
  "id": "RUSTSEC-2025-0018",
  "modified": "2025-10-28T06:02:18Z",
  "published": "2025-03-26T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/xmas-elf"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2025-0018.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/nrc/xmas-elf/issues/86"
    }
  ],
  "related": [],
  "severity": [],
  "summary": "Potential out-of-bounds read with a malformed ELF file and the HashTable API."
}


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