{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited. (TLPv2: TLP:CLEAR)",
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "A vulnerability exists in affected products that could allow remote attackers to affect\nthe availability of the devices under certain conditions.\n\nThe underlying TCP stack can be forced to make very computation expensive calls\nfor every incoming packet which can lead to a Denial-of-Service.\n\nSiemens has released new versions for several affected products and recommends to update to the latest versions. Siemens is preparing further fix versions and recommends countermeasures for products where fixes are not, or not yet available.",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens\u0027 operational guidelines for Industrial Security (Download: \nhttps://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.\nAdditional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity",
        "title": "General Recommendations"
      },
      {
        "category": "general",
        "text": "For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "Siemens Security Advisories are subject to the terms and conditions contained in Siemens\u0027 underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter \"License Terms\"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens\u0027 Global Website (https://www.siemens.com/terms_of_use, hereinafter \"Terms of Use\"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "productcert@siemens.com",
      "name": "Siemens ProductCERT",
      "namespace": "https://www.siemens.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "SSA-593272: SegmentSmack in Interniche IP-Stack based Industrial Devices - HTML Version",
        "url": "https://cert-portal.siemens.com/productcert/html/ssa-593272.html"
      },
      {
        "category": "self",
        "summary": "SSA-593272: SegmentSmack in Interniche IP-Stack based Industrial Devices - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-593272.json"
      },
      {
        "category": "self",
        "summary": "SSA-593272: SegmentSmack in Interniche IP-Stack based Industrial Devices - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-593272.pdf"
      },
      {
        "category": "self",
        "summary": "SSA-593272: SegmentSmack in Interniche IP-Stack based Industrial Devices - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-593272.txt"
      }
    ],
    "title": "SSA-593272: SegmentSmack in Interniche IP-Stack based Industrial Devices",
    "tracking": {
      "current_release_date": "2024-05-14T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      },
      "id": "SSA-593272",
      "initial_release_date": "2020-04-14T00:00:00Z",
      "revision_history": [
        {
          "date": "2020-04-14T00:00:00Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        },
        {
          "date": "2020-05-12T00:00:00Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Added SIMATIC S7-400 H V6 CPU family and below to the list of affected products"
        },
        {
          "date": "2021-03-09T00:00:00Z",
          "legacy_version": "1.2",
          "number": "3",
          "summary": "Added Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200 (P) to the list of affected products"
        },
        {
          "date": "2022-02-08T00:00:00Z",
          "legacy_version": "1.3",
          "number": "4",
          "summary": "No remediation planned for SIMATIC ET200 devices"
        },
        {
          "date": "2022-03-11T00:00:00Z",
          "legacy_version": "1.4",
          "number": "5",
          "summary": "Added mitigation measure for SIMATIC S7-300 and S7-400"
        },
        {
          "date": "2022-03-28T00:00:00Z",
          "legacy_version": "1.5",
          "number": "6",
          "summary": "Updated fix and mitigation measures for SIMATIC S7-300 and S7-400"
        },
        {
          "date": "2022-04-12T00:00:00Z",
          "legacy_version": "1.6",
          "number": "7",
          "summary": "Cleanup due to template changes, no change of contents"
        },
        {
          "date": "2022-06-14T00:00:00Z",
          "legacy_version": "1.7",
          "number": "8",
          "summary": "Added SIMATIC S7-1200 CPU family, ET200SP/MP/AL/EcoPN and PN/xx Coupler to the list of affected products"
        },
        {
          "date": "2022-12-13T00:00:00Z",
          "legacy_version": "1.8",
          "number": "9",
          "summary": "Added fix for SIMATIC S7-410 CPU family (incl. SIPLUS variants)"
        },
        {
          "date": "2023-01-10T00:00:00Z",
          "legacy_version": "1.9",
          "number": "10",
          "summary": "Removed fix for SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants) and added SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants) to the list of affected products"
        },
        {
          "date": "2023-02-14T00:00:00Z",
          "legacy_version": "2.0",
          "number": "11",
          "summary": "Added additional SIMATIC ET200ecoPN products (CM 4x IO-Link, M12-L / CM 8x IO-Link, M12-L / AI 8xRTD/TC, M12-L) to the list of affected products"
        },
        {
          "date": "2024-05-14T00:00:00Z",
          "legacy_version": "2.1",
          "number": "12",
          "summary": "Added fix for several SIMATIC ET200ecoPN devices"
        }
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      "status": "interim",
      "version": "12"
    }
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    {
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      "cwe": {
        "id": "CWE-400",
        "name": "Uncontrolled Resource Consumption"
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        {
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        {
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        },
        {
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        {
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
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      ],
      "title": "CVE-2019-19300"
    }
  ]
}