pysec-2024-60
Vulnerability from pysec
Published
2024-07-07 18:15
Modified
2024-07-11 17:21
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details

A vulnerability was identified in the kjd/idna library, specifically within the idna.encode() function, affecting version 3.6. The issue arises from the function's handling of crafted input strings, which can lead to quadratic complexity and consequently, a denial of service condition. This vulnerability is triggered by a crafted input that causes the idna.encode() function to process the input with considerable computational load, significantly increasing the processing time in a quadratic manner relative to the input size.

Aliases


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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "idna",
        "purl": "pkg:pypi/idna"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1d365e17e10d72d0b7876316fc7b9ca0eebdd38d"
            }
          ],
          "repo": "https://github.com/kjd/idna",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0.1"
            },
            {
              "fixed": "3.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.1",
        "0.2",
        "0.3",
        "0.4",
        "0.5",
        "0.6",
        "0.7",
        "0.8",
        "0.9",
        "1.0",
        "1.1",
        "2.0",
        "2.1",
        "2.10",
        "2.2",
        "2.3",
        "2.4",
        "2.5",
        "2.6",
        "2.7",
        "2.8",
        "2.9",
        "3.0",
        "3.1",
        "3.2",
        "3.3",
        "3.4",
        "3.5",
        "3.6"
      ]
    }
  ],
  "aliases": [
    "CVE-2024-3651"
  ],
  "details": "A vulnerability was identified in the kjd/idna library, specifically within the `idna.encode()` function, affecting version 3.6. The issue arises from the function\u0027s handling of crafted input strings, which can lead to quadratic complexity and consequently, a denial of service condition. This vulnerability is triggered by a crafted input that causes the `idna.encode()` function to process the input with considerable computational load, significantly increasing the processing time in a quadratic manner relative to the input size.",
  "id": "PYSEC-2024-60",
  "modified": "2024-07-11T17:21:37.216928+00:00",
  "published": "2024-07-07T18:15:00+00:00",
  "references": [
    {
      "type": "EVIDENCE",
      "url": "https://huntr.com/bounties/93d78d07-d791-4b39-a845-cbfabc44aadb"
    },
    {
      "type": "FIX",
      "url": "https://huntr.com/bounties/93d78d07-d791-4b39-a845-cbfabc44aadb"
    },
    {
      "type": "FIX",
      "url": "https://github.com/kjd/idna/commit/1d365e17e10d72d0b7876316fc7b9ca0eebdd38d"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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