gsd-2020-36242
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class.
Aliases
Aliases
CVE-2020-36242


To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-36242",
    "description": "In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class.",
    "id": "GSD-2020-36242",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-36242.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://advisories.mageia.org/CVE-2020-36242.html",
      "https://security.archlinux.org/CVE-2020-36242",
      "https://linux.oracle.com/cve/CVE-2020-36242.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-36242"
      ],
      "details": "In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class.",
      "id": "GSD-2020-36242",
      "modified": "2023-12-13T01:21:55.450222Z",
      "schema_version": "1.4.0"
    }
  },
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            "url": "https://github.com/pyca/cryptography/compare/3.3.1...3.3.2"
          },
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          }
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    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c3.3.2",
          "affected_versions": "All versions before 3.3.2",
          "cvss_v2": "AV:N/AC:L/Au:N/C:P/I:N/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-120",
            "CWE-190",
            "CWE-937"
          ],
          "date": "2021-07-21",
          "description": "In the cryptography package for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class.",
          "fixed_versions": [
            "3.3.2"
          ],
          "identifier": "CVE-2020-36242",
          "identifiers": [
            "CVE-2020-36242"
          ],
          "not_impacted": "All versions starting from 3.3.2",
          "package_slug": "pypi/cryptography",
          "pubdate": "2021-02-07",
          "solution": "Upgrade to version 3.3.2 or above.",
          "title": "Integer Overflow or Wraparound",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-36242"
          ],
          "uuid": "30f28712-557f-4730-bb50-7715cf75c14b"
        }
      ]
    },
    "nvd.nist.gov": {
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                "versionEndExcluding": "3.3.2",
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            }
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.4,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 4.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.2
        }
      },
      "lastModifiedDate": "2022-12-06T21:52Z",
      "publishedDate": "2021-02-07T20:15Z"
    }
  }
}


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