{
  "schema_version": "1.4.0",
  "id": "GHSA-2h6c-j3gf-xp9r",
  "modified": "2023-02-10T19:52:45Z",
  "published": "2023-02-10T19:52:45Z",
  "aliases": [
    "CVE-2023-23626"
  ],
  "summary": "IPFS go-bitfield vulnerable to DoS via malformed size arguments",
  "details": "### Impact\nWhen feeding untrusted user input into the size parameter of `NewBitfield` and `FromBytes` functions, an attacker can trigger `panic`s.\n\nThis happen when the `size` is a not a multiple of `8` or is negative.\nThere were already a note in the `NewBitfield` documentation:\n> ```\n> Panics if size is not a multiple of 8.\n> ````\n\nBut it incomplete and missing from `FromBytes`'s documentation.\n\nThis has been replaced by returning an `(Bitfield, error)` and returning a non nil error if the size is wrong.\n\n### Patches\n- https://github.com/ipfs/go-bitfield/commit/5e1d256fe043fc4163343ccca83862c69c52e579\n\n### Workarounds\n- Ensure `size%8 == 0 && size >= 0` yourself before calling `NewBitfield` or `FromBytes`\n\n### References\n- https://github.com/ipfs/go-unixfs/security/advisories/GHSA-q264-w97q-q778\n",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/ipfs/go-bitfield"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.0"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/ipfs/go-bitfield/security/advisories/GHSA-2h6c-j3gf-xp9r"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-23626"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ipfs/go-bitfield/commit/5e1d256fe043fc4163343ccca83862c69c52e579"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ipfs/go-bitfield"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2023-1558"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1284",
      "CWE-754"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2023-02-10T19:52:45Z",
    "nvd_published_at": "2023-02-09T21:15:00Z"
  }
}