rustsec-2025-0067
Vulnerability from osv_rustsec
Published
2025-09-11 12:00
Modified
2025-10-28 06:02
Summary
`libyml::string::yaml_string_extend` is unsound and unmaintained
Details

In version 0.0.4, libyml::string::yaml_string_extend was revised resulting in undefined behaviour, which is unsound.

The GitHub project for libyml was archived after unsoundness issues were raised.

If you rely on this crate, it is highly recommended switching to a maintained alternative.

Recommended alternatives

To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "categories": [],
        "cvss": null,
        "informational": "unsound"
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "libyml",
        "purl": "pkg:cargo/libyml"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "GHSA-gfxp-f68g-8x78"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "In version 0.0.4, `libyml::string::yaml_string_extend` was revised resulting in undefined behaviour, which is unsound.\n\nThe GitHub project for `libyml` was archived after unsoundness issues were raised.\n\nIf you rely on this crate, it is highly recommended switching to a maintained alternative.\n\n## Recommended alternatives\n\n- [`libyaml-safer`](https://crates.io/crates/libyaml-safer) \n- [`unsafe-libyaml-norway`](https://crates.io/crates/unsafe-libyaml-norway) - Maintained fork of `unsafe-libyaml`",
  "id": "RUSTSEC-2025-0067",
  "modified": "2025-10-28T06:02:18Z",
  "published": "2025-09-11T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/libyml"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2025-0067.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/rustsec/advisory-db/issues/2395"
    }
  ],
  "related": [],
  "severity": [],
  "summary": "`libyml::string::yaml_string_extend` is unsound and unmaintained"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.