GHSA-V363-RRF2-5FMJ

Vulnerability from github – Published: 2024-01-17 20:31 – Updated: 2024-01-17 20:31
VLAI
Summary
ferris-says has undefined behavior when not using UTF-8
Details

Affected versions receive a &[u8] from the caller through a safe API, and pass it directly to the unsafe str::from_utf8_unchecked function.

The behavior of ferris_says::say is undefined if the bytes from the caller don't happen to be valid UTF-8.

The flaw was corrected in ferris-says#21 by using the safe str::from_utf8 instead, and returning an error on invalid input. However this fix has not yet been published to crates.io as a patch version for 0.2.

Separately, ferris-says#32 has introduced a different API for version 0.3 which accepts input as &str rather than &[u8], so is unaffected by this bug.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "ferris-says"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.1.2"
            },
            {
              "last_affected": "0.2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "ferris-says"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.3.0"
            },
            {
              "fixed": "0.3.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": true,
    "github_reviewed_at": "2024-01-17T20:31:11Z",
    "nvd_published_at": null,
    "severity": "LOW"
  },
  "details": "Affected versions receive a `\u0026[u8]` from the caller through a safe API, and pass it directly to the unsafe `str::from_utf8_unchecked` function.\n\nThe behavior of `ferris_says::say` is undefined if the bytes from the caller don\u0027t happen to be valid UTF-8.\n\nThe flaw was corrected in [ferris-says#21] by using the safe `str::from_utf8` instead, and returning an error on invalid input. However this fix has not yet been published to crates.io as a patch version for 0.2.\n\nSeparately, [ferris-says#32] has introduced a different API for version 0.3 which accepts input as `\u0026str` rather than `\u0026[u8]`, so is unaffected by this bug.\n\n[ferris-says#21]: https://github.com/rust-lang/ferris-says/pull/21\n[ferris-says#32]: https://github.com/rust-lang/ferris-says/pull/32",
  "id": "GHSA-v363-rrf2-5fmj",
  "modified": "2024-01-17T20:31:11Z",
  "published": "2024-01-17T20:31:11Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/rust-lang/ferris-says/pull/21"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rust-lang/ferris-says/commit/bb661f29e0d88968c495a4ea4dc63ff0e2c2c11a"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mgattozzi/ferris-says"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2024-0001.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "ferris-says has undefined behavior when not using UTF-8"
}



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