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rustsec-2023-0083
Vulnerability from osv_rustsec
Published
2023-09-19 12:00
Modified
2026-03-11 10:51
Summary
blurhash: panic on parsing crafted blurhash inputs
Details

Impact

The blurhash parsing code may panic due to multiple panic-guarded out-of-bounds accesses on untrusted input.

In a typical deployment, this may get triggered by feeding a maliciously crafted blurhashes over the network. These may include: - UTF-8 compliant strings containing multi-byte UTF-8 characters

Patches

The patches were released under version 0.2.0, which may require user intervention because of slight API churn.


{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "denial-of-service"
        ],
        "cvss": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [
            "blurhash::decode"
          ],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "blurhash",
        "purl": "pkg:cargo/blurhash"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            },
            {
              "fixed": "0.2.0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "CVE-2023-42447",
    "GHSA-cxvp-82cq-57h2"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "## Impact\nThe blurhash parsing code may panic due to multiple panic-guarded out-of-bounds accesses on untrusted input.\n\nIn a typical deployment, this may get triggered by feeding a maliciously crafted blurhashes over the network. These may include:\n- UTF-8 compliant strings containing multi-byte UTF-8 characters\n\n## Patches\nThe patches were released under version 0.2.0, which may require user intervention because of slight API churn.",
  "id": "RUSTSEC-2023-0083",
  "modified": "2026-03-11T10:51:38Z",
  "published": "2023-09-19T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/blurhash"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2023-0083.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/whisperfish/blurhash-rs/security/advisories/GHSA-cxvp-82cq-57h2"
    },
    {
      "type": "ADVISORY",
      "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-42447"
    }
  ],
  "related": [],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "blurhash: panic on parsing crafted blurhash inputs"
}



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