pysec - pysec-2020-99

pysec-2020-99

Vulnerability from pysec

Published

2020-06-01 19:15

Modified

2020-09-02 16:15

Details

Python-RSA before 4.1 ignores leading '\0' bytes during decryption of ciphertext. This could conceivably have a security-relevant impact, e.g., by helping an attacker to infer that an application uses Python-RSA, or if the length of accepted ciphertext affects application behavior (such as by causing excessive memory allocation).

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "rsa",
        "purl": "pkg:pypi/rsa"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.1",
        "1.2",
        "1.3",
        "1.3.1",
        "1.3.2",
        "1.3.3",
        "2.0",
        "3.0",
        "3.0.1",
        "3.1",
        "3.1.1",
        "3.1.2",
        "3.1.3",
        "3.1.4",
        "3.2",
        "3.2.1",
        "3.2.2",
        "3.2.3",
        "3.3",
        "3.4",
        "3.4.1",
        "3.4.2",
        "4.0"
      ]
    }
  ],
  "aliases": [
    "CVE-2020-13757",
    "GHSA-537h-rv9q-vvph"
  ],
  "details": "Python-RSA before 4.1 ignores leading \u0027\\0\u0027 bytes during decryption of ciphertext. This could conceivably have a security-relevant impact, e.g., by helping an attacker to infer that an application uses Python-RSA, or if the length of accepted ciphertext affects application behavior (such as by causing excessive memory allocation).",
  "id": "PYSEC-2020-99",
  "modified": "2020-09-02T16:15:00Z",
  "published": "2020-06-01T19:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://github.com/sybrenstuvel/python-rsa/issues/146"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/sybrenstuvel/python-rsa/issues/146#issuecomment-641845667"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2KILTHBHNSDUCYV22ODLOKTICJJ7JQIQ/"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZYB65VNILRBTXL6EITQTH2PZPK7I23MW/"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4478-1/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-537h-rv9q-vvph"
    }
  ]
}

ghsa-537h-rv9q-vvph

Vulnerability from github

Published

2021-03-24 18:24

Modified

2023-09-01 10:08

Severity

7.5 (High) - CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Summary

Python-RSA decryption of ciphertext leads to DoS

Details

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "rsa"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-13757"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-327"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-03-24T18:24:28Z",
    "nvd_published_at": "2020-06-01T19:15:00Z",
    "severity": "HIGH"
  },
  "details": "Python-RSA before 4.1 ignores leading \u0027\\0\u0027 bytes during decryption of ciphertext. This could conceivably have a security-relevant impact, e.g., by helping an attacker to infer that an application uses Python-RSA, or if the length of accepted ciphertext affects application behavior (such as by causing excessive memory allocation).",
  "id": "GHSA-537h-rv9q-vvph",
  "modified": "2023-09-01T10:08:35Z",
  "published": "2021-03-24T18:24:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-13757"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sybrenstuvel/python-rsa/issues/146"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sybrenstuvel/python-rsa/issues/146#issuecomment-641845667"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/sybrenstuvel/python-rsa"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2KILTHBHNSDUCYV22ODLOKTICJJ7JQIQ"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZYB65VNILRBTXL6EITQTH2PZPK7I23MW"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4478-1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Python-RSA decryption of ciphertext leads to DoS"
}

cve-2020-13757

Vulnerability from cvelistv5

Published

2020-06-01 18:17

Modified

2024-08-04 12:25

Severity

Summary

References

URL	Tags
https://github.com/sybrenstuvel/python-rsa/issues/146	x_refsource_MISC
https://github.com/sybrenstuvel/python-rsa/issues/146#issuecomment-641845667	x_refsource_CONFIRM
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2KILTHBHNSDUCYV22ODLOKTICJJ7JQIQ/	vendor-advisory, x_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZYB65VNILRBTXL6EITQTH2PZPK7I23MW/	vendor-advisory, x_refsource_FEDORA
https://usn.ubuntu.com/4478-1/	vendor-advisory, x_refsource_UBUNTU

Impacted products

Vendor	Product
n/a	n/a

Show details on NVD website

JSON

To clipboard

{
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            ],
            "url": "https://github.com/sybrenstuvel/python-rsa/issues/146"
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            "url": "https://github.com/sybrenstuvel/python-rsa/issues/146#issuecomment-641845667"
          },
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            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2KILTHBHNSDUCYV22ODLOKTICJJ7JQIQ/"
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          },
          {
            "name": "USN-4478-1",
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              "x_refsource_UBUNTU",
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            ],
            "url": "https://usn.ubuntu.com/4478-1/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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      ],
      "descriptions": [
        {
          "lang": "en",
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      "references": [
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        {
          "name": "USN-4478-1",
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                "vendor_name": "n/a"
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  "dataVersion": "5.1"
}

Action not permitted

pysec-2020-99

Vulnerability from pysec

ghsa-537h-rv9q-vvph

Vulnerability from github

cve-2020-13757

Vulnerability from cvelistv5

Tags