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

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{
  "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

2024-10-21 21:54

Severity ?

7.5 (High) - 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": "2024-10-21T21:54:27Z",
  "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": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/rsa/PYSEC-2020-99.yaml"
    },
    {
      "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

{
  "containers": {
    "adp": [
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        "providerMetadata": {
          "dateUpdated": "2024-08-04T12:25:16.505Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/sybrenstuvel/python-rsa/issues/146"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/sybrenstuvel/python-rsa/issues/146#issuecomment-641845667"
          },
          {
            "name": "FEDORA-2020-253ebe55ff",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2KILTHBHNSDUCYV22ODLOKTICJJ7JQIQ/"
          },
          {
            "name": "FEDORA-2020-5ed5627d2b",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZYB65VNILRBTXL6EITQTH2PZPK7I23MW/"
          },
          {
            "name": "USN-4478-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/4478-1/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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)."
        }
      ],
      "problemTypes": [
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      "providerMetadata": {
        "dateUpdated": "2020-09-02T15:06:22",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/sybrenstuvel/python-rsa/issues/146"
        },
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          ],
          "url": "https://github.com/sybrenstuvel/python-rsa/issues/146#issuecomment-641845667"
        },
        {
          "name": "FEDORA-2020-253ebe55ff",
          "tags": [
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            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2KILTHBHNSDUCYV22ODLOKTICJJ7JQIQ/"
        },
        {
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          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZYB65VNILRBTXL6EITQTH2PZPK7I23MW/"
        },
        {
          "name": "USN-4478-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4478-1/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-13757",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
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                },
                "vendor_name": "n/a"
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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        "problemtype": {
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                  "value": "n/a"
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            },
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              "refsource": "FEDORA",
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            },
            {
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  "cveMetadata": {
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    "dateReserved": "2020-06-01T00:00:00",
    "dateUpdated": "2024-08-04T12:25:16.505Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

pysec-2020-99

Vulnerability from pysec

ghsa-537h-rv9q-vvph

Vulnerability from github

cve-2020-13757

Vulnerability from cvelistv5

Tags

Sightings

Nomenclature