GHSA-X8JH-XJ3X-GX3C

Vulnerability from github – Published: 2024-11-12 20:48 – Updated: 2024-11-12 20:48
VLAI?
Summary
`fast-float` has multiple soundness issues
Details

fast-float contains multiple soundness issues:

  1. Undefined behavior when checking input length, which has been merged but no package pubished.
  2. Many functions marked as safe with non-local safety guarantees

The library is also unmaintained.

Alternatives

For quickly parsing floating-point numbers third-party crates are generally no longer needed. A fast float parsing algorithm by the author of lexical has been merged into libcore. When requiring direct parsing from bytes and/or partial parsers, the fast-float2 fork of fast-float containing these security patches and reduces overall usage of unsafe.

Severity ?
2.7 (Low)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U
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{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "fast-float"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.2.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": true,
    "github_reviewed_at": "2024-11-12T20:48:39Z",
    "nvd_published_at": null,
    "severity": "LOW"
  },
  "details": "`fast-float` contains multiple soundness issues:\n\n 1. [Undefined behavior when checking input length](https://github.com/aldanor/fast-float-rust/issues/28), which has been merged but no package [pubished](https://github.com/aldanor/fast-float-rust/issues/35).\n 1. [Many functions marked as safe with non-local safety guarantees](https://github.com/aldanor/fast-float-rust/issues/37)\n\nThe library is also unmaintained.\n\n## Alternatives\n\nFor quickly parsing floating-point numbers third-party crates are generally no longer needed. A fast float parsing algorithm by the author of `lexical` has been [merged](https://github.com/rust-lang/rust/pull/86761) into libcore. When requiring direct parsing from bytes and/or partial parsers, the [`fast-float2`](https://crates.io/crates/fast-float2) fork of `fast-float` containing these security patches and reduces overall usage of unsafe.\n",
  "id": "GHSA-x8jh-xj3x-gx3c",
  "modified": "2024-11-12T20:48:39Z",
  "published": "2024-11-12T20:48:39Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/aldanor/fast-float-rust/issues/28"
    },
    {
      "type": "WEB",
      "url": "https://github.com/aldanor/fast-float-rust/issues/35"
    },
    {
      "type": "WEB",
      "url": "https://github.com/aldanor/fast-float-rust/issues/37"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/aldanor/fast-float-rust"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2024-0379.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U",
      "type": "CVSS_V4"
    }
  ],
  "summary": "`fast-float` has multiple soundness issues"
}


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