Vulnerability from bitnami_vulndb
Published
2025-08-11 13:51
Modified
2025-11-06 13:25
Summary
Details

A flaw was found in python. In algorithms with quadratic time complexity using non-binary bases, when using int("text"), a system could take 50ms to parse an int string with 100,000 digits and 5s for 1,000,000 digits (float, decimal, int.from_bytes(), and int() for binary bases 2, 4, 8, 16, and 32 are not affected). The highest threat from this vulnerability is to system availability.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "libpython",
        "purl": "pkg:bitnami/libpython"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.7.0"
            },
            {
              "fixed": "3.7.14"
            },
            {
              "introduced": "3.8.0"
            },
            {
              "fixed": "3.8.14"
            },
            {
              "introduced": "3.9.0"
            },
            {
              "fixed": "3.9.14"
            },
            {
              "introduced": "3.10.0"
            },
            {
              "fixed": "3.10.7"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-10735"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*"
    ],
    "severity": "High"
  },
  "details": "A flaw was found in python. In algorithms with quadratic time complexity using non-binary bases, when using int(\"text\"), a system could take 50ms to parse an int string with 100,000 digits and 5s for 1,000,000 digits (float, decimal, int.from_bytes(), and int() for binary bases 2, 4, 8, 16, and 32 are not affected). The highest threat from this vulnerability is to system availability.",
  "id": "BIT-libpython-2020-10735",
  "modified": "2025-11-06T13:25:46.476Z",
  "published": "2025-08-11T13:51:26.807Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2022/09/21/1"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2022/09/21/4"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2020-10735"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1834423"
    },
    {
      "type": "WEB",
      "url": "https://docs.google.com/document/d/1KjuF_aXlzPUxTK4BMgezGJ2Pn7uevfX7g0_mvgHlL7Y"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/issues/95778"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00039.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2VCU6EVQDIXNCEDJUCTFIER2WVNNDTYZ/"
    },
    {
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    },
    {
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    },
    {
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    {
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    {
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    {
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    },
    {
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    },
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    },
    {
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    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UBPDVCDIUCEBE7C4NAGNA2KQJYOTPBAZ/"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V7ZUJDHK7KNG6SLIFXW7MNZ6O2PUJYK6/"
    },
    {
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    {
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    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-10735"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/11/msg00024.html"
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  ],
  "schema_version": "1.6.2"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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