gsd-2020-25659
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
python-cryptography 3.2 is vulnerable to Bleichenbacher timing attacks in the RSA decryption API, via timed processing of valid PKCS#1 v1.5 ciphertext.
Aliases
Aliases
CVE-2020-25659


To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-25659",
    "description": "python-cryptography 3.2 is vulnerable to Bleichenbacher timing attacks in the RSA decryption API, via timed processing of valid PKCS#1 v1.5 ciphertext.",
    "id": "GSD-2020-25659",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-25659.html",
      "https://access.redhat.com/errata/RHSA-2021:3254",
      "https://access.redhat.com/errata/RHSA-2021:2239",
      "https://access.redhat.com/errata/RHSA-2021:1608",
      "https://ubuntu.com/security/CVE-2020-25659",
      "https://advisories.mageia.org/CVE-2020-25659.html",
      "https://linux.oracle.com/cve/CVE-2020-25659.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-25659"
      ],
      "details": "python-cryptography 3.2 is vulnerable to Bleichenbacher timing attacks in the RSA decryption API, via timed processing of valid PKCS#1 v1.5 ciphertext.",
      "id": "GSD-2020-25659",
      "modified": "2023-12-13T01:21:57.277649Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ID": "CVE-2020-25659",
        "STATE": "PUBLIC"
      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "python-cryptography",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "python-cryptography 3.2"
                        }
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                    }
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            "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
          }
        ]
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c3.2",
          "affected_versions": "All versions before 3.2",
          "cvss_v2": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-385",
            "CWE-937"
          ],
          "date": "2020-10-27",
          "description": "python-cryptography 3.2 is vulnerable to Bleichenbacher timing attacks in the RSA decryption API, via timed processing of valid PKCS#1 v1.5 ciphertext.",
          "fixed_versions": [
            "3.2"
          ],
          "identifier": "CVE-2020-25659",
          "identifiers": [
            "GHSA-hggm-jpg3-v476",
            "CVE-2020-25659"
          ],
          "not_impacted": "All versions starting from 3.2",
          "package_slug": "pypi/cryptography",
          "pubdate": "2020-10-27",
          "solution": "Upgrade to version 3.2 or above.",
          "title": "Covert Timing Channel",
          "urls": [
            "https://github.com/pyca/cryptography/security/advisories/GHSA-hggm-jpg3-v476",
            "https://github.com/pyca/cryptography/commit/58494b41d6ecb0f56b7c5f05d5f5e3ca0320d494",
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          ],
          "uuid": "cb73eaa5-b2ea-418b-a24a-7c538d55282d"
        }
      ]
    },
    "nvd.nist.gov": {
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                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:1.10.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
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            ],
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            }
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        "problemtype": {
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        },
        "references": {
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              "name": "https://github.com/pyca/cryptography/pull/5507/commits/ce1bef6f1ee06ac497ca0c837fbd1c7ef6c2472b",
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                "Third Party Advisory"
              ],
              "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2023-02-09T02:25Z",
      "publishedDate": "2021-01-11T16:15Z"
    }
  }
}


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