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GHSA-2H6C-J3GF-XP9R

Vulnerability from github – Published: 2023-02-10 19:52 – Updated: 2023-02-10 19:52
VLAI
Summary
IPFS go-bitfield vulnerable to DoS via malformed size arguments
Details

Impact

When feeding untrusted user input into the size parameter of NewBitfield and FromBytes functions, an attacker can trigger panics.

This happen when the size is a not a multiple of 8 or is negative. There were already a note in the NewBitfield documentation:

``` Panics if size is not a multiple of 8. ````

But it incomplete and missing from FromBytes's documentation.

This has been replaced by returning an (Bitfield, error) and returning a non nil error if the size is wrong.

Patches

  • https://github.com/ipfs/go-bitfield/commit/5e1d256fe043fc4163343ccca83862c69c52e579

Workarounds

  • Ensure size%8 == 0 && size >= 0 yourself before calling NewBitfield or FromBytes

References

  • https://github.com/ipfs/go-unixfs/security/advisories/GHSA-q264-w97q-q778
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/ipfs/go-bitfield"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-23626"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1284",
      "CWE-754"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-02-10T19:52:45Z",
    "nvd_published_at": "2023-02-09T21:15:00Z",
    "severity": "MODERATE"
  },
  "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\u003e ```\n\u003e Panics if size is not a multiple of 8.\n\u003e ````\n\nBut it incomplete and missing from `FromBytes`\u0027s documentation.\n\nThis has been replaced by returning an `(Bitfield, error)` and returning a non nil error if the size is wrong.\n\n### Patches\n-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 \u0026\u0026 size \u003e= 0` yourself before calling `NewBitfield` or `FromBytes`\n\n### References\n- https://github.com/ipfs/go-unixfs/security/advisories/GHSA-q264-w97q-q778\n",
  "id": "GHSA-2h6c-j3gf-xp9r",
  "modified": "2023-02-10T19:52:45Z",
  "published": "2023-02-10T19:52:45Z",
  "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"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "IPFS go-bitfield vulnerable to DoS via malformed size arguments"
}



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