icsa-19-344-03
Vulnerability from csaf_cisa
Published
2019-12-10 00:00
Modified
2023-12-12 00:00
Summary
Siemens RUGGEDCOM ROS (Update A)

Notes

Summary
The boot loader within RUGGEDCOM ROS contains two vulnerabilities in the loading process of the operating system kernel. The more severe of these vulnerabilities could allow an attacker with local access to the device to execute arbitrary code on an affected device. Siemens recommends specific countermeasures to mitigate this issue.
General Recommendations
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' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity
Additional Resources
For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories
Terms of Use
Siemens Security Advisories are subject to the terms and conditions contained in Siemens' 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' 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.
Legal Notice
All information products included in https://us-cert.cisa.gov/ics are provided "as is" for informational purposes only. The Department of Homeland Security (DHS) does not provide any warranties of any kind regarding any information contained within. DHS does not endorse any commercial product or service, referenced in this product or otherwise. Further dissemination of this product is governed by the Traffic Light Protocol (TLP) marking in the header. For more information about TLP, see https://us-cert.cisa.gov/tlp/.
Advisory Conversion Disclaimer
This CISA CSAF advisory was converted from Siemens ProductCERT's CSAF advisory.
Critical infrastructure sectors
Multiple
Countries/areas deployed
Worldwide
Company headquarters location
Germany
Recommended Practices
CISA recommends users take defensive measures to minimize the exploitation risk of this vulnerability.
Recommended Practices
Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet.
Recommended Practices
Locate control system networks and remote devices behind firewalls and isolate them from business networks.
Recommended Practices
When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices.
Recommended Practices
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
Recommended Practices
CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
Recommended Practices
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.
Recommended Practices
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.


To clipboard 

{
  "document": {
    "acknowledgments": [
      {
        "organization": "Siemens ProductCERT",
        "summary": "reporting these vulnerabilities to CISA."
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited",
      "tlp": {
        "label": "WHITE",
        "url": "https://us-cert.cisa.gov/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "The boot loader within RUGGEDCOM ROS contains two vulnerabilities in the loading process of the operating system kernel. The more severe of these vulnerabilities could allow an attacker with local access to the device to execute arbitrary code on an affected device.\n\nSiemens recommends specific countermeasures to mitigate this issue.",
        "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"
      },
      {
        "category": "legal_disclaimer",
        "text": "All information products included in https://us-cert.cisa.gov/ics are provided \"as is\" for informational purposes only. The Department of Homeland Security (DHS) does not provide any warranties of any kind regarding any information contained within. DHS does not endorse any commercial product or service, referenced in this product or otherwise. Further dissemination of this product is governed by the Traffic Light Protocol (TLP) marking in the header. For more information about TLP, see https://us-cert.cisa.gov/tlp/.",
        "title": "Legal Notice"
      },
      {
        "category": "other",
        "text": "This CISA CSAF advisory was converted from Siemens ProductCERT\u0027s CSAF advisory.",
        "title": "Advisory Conversion Disclaimer"
      },
      {
        "category": "other",
        "text": "Multiple",
        "title": "Critical infrastructure sectors"
      },
      {
        "category": "other",
        "text": "Worldwide",
        "title": "Countries/areas deployed"
      },
      {
        "category": "other",
        "text": "Germany",
        "title": "Company headquarters location"
      },
      {
        "category": "general",
        "text": "CISA recommends users take defensive measures to minimize the exploitation risk of this vulnerability.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Locate control system networks and remote devices behind firewalls and isolate them from business networks.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.",
        "title": "Recommended Practices"
      },
      {
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        "title": "Recommended Practices"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "central@cisa.dhs.gov",
      "name": "CISA",
      "namespace": "https://www.cisa.gov/"
    },
    "references": [
      {
        "category": "self",
        "summary": "SSA-618620: Vulnerabilities in Boot Loader (U-Boot) of RUGGEDCOM ROS Devices - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-618620.json"
      },
      {
        "category": "self",
        "summary": "SSA-618620: Vulnerabilities in Boot Loader (U-Boot) of RUGGEDCOM ROS Devices - HTML Version",
        "url": "https://cert-portal.siemens.com/productcert/html/ssa-618620.html"
      },
      {
        "category": "self",
        "summary": "SSA-618620: Vulnerabilities in Boot Loader (U-Boot) of RUGGEDCOM ROS Devices - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-618620.pdf"
      },
      {
        "category": "self",
        "summary": "SSA-618620: Vulnerabilities in Boot Loader (U-Boot) of RUGGEDCOM ROS Devices - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-618620.txt"
      },
      {
        "category": "self",
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        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2019/icsa-19-344-03.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-19-344-03 - Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-19-344-03"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/resources-tools/resources/ics-recommended-practices"
      },
      {
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        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/topics/industrial-control-systems"
      },
      {
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        "summary": "Recommended Practices",
        "url": "https://us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf"
      },
      {
        "category": "external",
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        "url": "https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B"
      }
    ],
    "title": "Siemens RUGGEDCOM ROS (Update A)",
    "tracking": {
      "current_release_date": "2023-12-12T00:00:00.000000Z",
      "generator": {
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.0.0"
        }
      },
      "id": "ICSA-19-344-03",
      "initial_release_date": "2019-12-10T00:00:00.000000Z",
      "revision_history": [
        {
          "date": "2019-12-10T00:00:00.000000Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        },
        {
          "date": "2022-09-13T00:00:00.000000Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Only devices shipped with U-Boot \u003c V2016.05RS09 are affected by CVE-2018-18440, clarify that currently no fix is planned for affected devices"
        },
        {
          "date": "2023-12-12T00:00:00.000000Z",
          "legacy_version": "1.2",
          "number": "3",
          "summary": "Removed RUGGEDCOM RSG900C and RSG900R as all products from these families are also listed in the advisory (RUGGEDCOM RSG907R, RSG908C, RSG909R and RSG910C). Readjusted product naming to reflect firmware version used (V4.X or/and V5.X). Added missing products: RUGGEDCOM RMC8388NC, RSG2488NC, RSG920PNC, RST2228P, RST916C and RST916P"
        }
      ],
      "status": "final",
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              {
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                }
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          },
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                  "product_id": "CSAFPID-0028"
                }
              }
            ],
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            "name": "RUGGEDCOM RST916P"
          },
          {
            "branches": [
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                  "product_id": "CSAFPID-0029"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003e=with_U-Boot_V2016.05RS09",
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                  "name": "RUGGEDCOM RST2228",
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                  "product_id": "CSAFPID-0031"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003e=with_U-Boot_V2016.05RS09",
                "product": {
                  "name": "RUGGEDCOM RST2228P",
                  "product_id": "CSAFPID-0032"
                }
              }
            ],
            "category": "product_name",
            "name": "RUGGEDCOM RST2228P"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2018-18440",
      "cwe": {
        "id": "CWE-119",
        "name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The embedded DENX U-Boot boot loader has a locally exploitable buffer overflow via a crafted kernel image because filesystem loading is mishandled.\n\nThe security vulnerability could be exploited by an attacker with local access to the affected systems. The vulnerability could allow an attacker to compromise confidentiality, integrity and availability of the system.\n\nAt the time of advisory publication no public exploitation of this security vulnerability was known.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003",
          "CSAFPID-0004",
          "CSAFPID-0017",
          "CSAFPID-0019",
          "CSAFPID-0021",
          "CSAFPID-0023",
          "CSAFPID-0005",
          "CSAFPID-0006",
          "CSAFPID-0007",
          "CSAFPID-0008",
          "CSAFPID-0009",
          "CSAFPID-0011",
          "CSAFPID-0013",
          "CSAFPID-0015",
          "CSAFPID-0025",
          "CSAFPID-0026",
          "CSAFPID-0029",
          "CSAFPID-0031",
          "CSAFPID-0027",
          "CSAFPID-0028"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Disable boot interface access during boot up via the \u0027bootoption.txt\u0027 file parameter \u0027Security = yes\u0027 to mitigate CVE-2018-18440.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0017",
            "CSAFPID-0019",
            "CSAFPID-0021",
            "CSAFPID-0023",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-0011",
            "CSAFPID-0013",
            "CSAFPID-0015",
            "CSAFPID-0025",
            "CSAFPID-0026",
            "CSAFPID-0029",
            "CSAFPID-0031",
            "CSAFPID-0027",
            "CSAFPID-0028"
          ]
        },
        {
          "category": "mitigation",
          "details": "Disable access to the removable media via \u0027bootoption.txt\u0027 file parameter \u0027Disableautoaccessremovable = Yes\u0027 to mitigate CVE-2019-13103. Note that this vulnerability only applies to RUGGEDCOM ROS, if the device boots from removable media.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0017",
            "CSAFPID-0019",
            "CSAFPID-0021",
            "CSAFPID-0023",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-0011",
            "CSAFPID-0013",
            "CSAFPID-0015",
            "CSAFPID-0025",
            "CSAFPID-0026",
            "CSAFPID-0029",
            "CSAFPID-0031",
            "CSAFPID-0027",
            "CSAFPID-0028"
          ]
        },
        {
          "category": "no_fix_planned",
          "details": "Currently no fix is planned",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0004",
            "CSAFPID-0017",
            "CSAFPID-0019",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-0011",
            "CSAFPID-0025",
            "CSAFPID-0026",
            "CSAFPID-0029",
            "CSAFPID-0027",
            "CSAFPID-0028"
          ]
        },
        {
          "category": "none_available",
          "details": "Currently no fix is available",
          "product_ids": [
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0021",
            "CSAFPID-0023",
            "CSAFPID-0013",
            "CSAFPID-0015",
            "CSAFPID-0031"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0017",
            "CSAFPID-0019",
            "CSAFPID-0021",
            "CSAFPID-0023",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-0011",
            "CSAFPID-0013",
            "CSAFPID-0015",
            "CSAFPID-0025",
            "CSAFPID-0026",
            "CSAFPID-0029",
            "CSAFPID-0031",
            "CSAFPID-0027",
            "CSAFPID-0028"
          ]
        }
      ],
      "title": "CVE-2018-18440"
    },
    {
      "cve": "CVE-2019-13103",
      "cwe": {
        "id": "CWE-674",
        "name": "Uncontrolled Recursion"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The embedded DENX U-Boot boot loader has a physically exploitable vulnerability. A crafted self-referential DOS partition table will cause the bootloader to infinitely recurse, causing the stack to grow infinitely and eventually crash.\r\n\r\nThe security vulnerability could be exploited by an attacker with physical access to the affected systems. The vulnerability could allow an attacker to compromise the availability of the system.\r\n\r\nAt the time of advisory publication no public exploitation of this security vulnerability was known.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0017",
          "CSAFPID-0018",
          "CSAFPID-0019",
          "CSAFPID-0020",
          "CSAFPID-0021",
          "CSAFPID-0022",
          "CSAFPID-0023",
          "CSAFPID-0024",
          "CSAFPID-0009",
          "CSAFPID-0010",
          "CSAFPID-0011",
          "CSAFPID-0012",
          "CSAFPID-0013",
          "CSAFPID-0014",
          "CSAFPID-0015",
          "CSAFPID-0016",
          "CSAFPID-0029",
          "CSAFPID-0030",
          "CSAFPID-0031",
          "CSAFPID-0032"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Disable boot interface access during boot up via the \u0027bootoption.txt\u0027 file parameter \u0027Security = yes\u0027 to mitigate CVE-2018-18440.",
          "product_ids": [
            "CSAFPID-0017",
            "CSAFPID-0018",
            "CSAFPID-0019",
            "CSAFPID-0020",
            "CSAFPID-0021",
            "CSAFPID-0022",
            "CSAFPID-0023",
            "CSAFPID-0024",
            "CSAFPID-0009",
            "CSAFPID-0010",
            "CSAFPID-0011",
            "CSAFPID-0012",
            "CSAFPID-0013",
            "CSAFPID-0014",
            "CSAFPID-0015",
            "CSAFPID-0016",
            "CSAFPID-0029",
            "CSAFPID-0030",
            "CSAFPID-0031",
            "CSAFPID-0032"
          ]
        },
        {
          "category": "mitigation",
          "details": "Disable access to the removable media via \u0027bootoption.txt\u0027 file parameter \u0027Disableautoaccessremovable = Yes\u0027 to mitigate CVE-2019-13103. Note that this vulnerability only applies to RUGGEDCOM ROS, if the device boots from removable media.",
          "product_ids": [
            "CSAFPID-0017",
            "CSAFPID-0018",
            "CSAFPID-0019",
            "CSAFPID-0020",
            "CSAFPID-0021",
            "CSAFPID-0022",
            "CSAFPID-0023",
            "CSAFPID-0024",
            "CSAFPID-0009",
            "CSAFPID-0010",
            "CSAFPID-0011",
            "CSAFPID-0012",
            "CSAFPID-0013",
            "CSAFPID-0014",
            "CSAFPID-0015",
            "CSAFPID-0016",
            "CSAFPID-0029",
            "CSAFPID-0030",
            "CSAFPID-0031",
            "CSAFPID-0032"
          ]
        },
        {
          "category": "no_fix_planned",
          "details": "Currently no fix is planned",
          "product_ids": [
            "CSAFPID-0017",
            "CSAFPID-0018",
            "CSAFPID-0019",
            "CSAFPID-0020",
            "CSAFPID-0022",
            "CSAFPID-0024",
            "CSAFPID-0009",
            "CSAFPID-0010",
            "CSAFPID-0011",
            "CSAFPID-0012",
            "CSAFPID-0014",
            "CSAFPID-0016",
            "CSAFPID-0029",
            "CSAFPID-0030",
            "CSAFPID-0032"
          ]
        },
        {
          "category": "none_available",
          "details": "Currently no fix is available",
          "product_ids": [
            "CSAFPID-0021",
            "CSAFPID-0023",
            "CSAFPID-0013",
            "CSAFPID-0015",
            "CSAFPID-0031"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 4.6,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0017",
            "CSAFPID-0018",
            "CSAFPID-0019",
            "CSAFPID-0020",
            "CSAFPID-0021",
            "CSAFPID-0022",
            "CSAFPID-0023",
            "CSAFPID-0024",
            "CSAFPID-0009",
            "CSAFPID-0010",
            "CSAFPID-0011",
            "CSAFPID-0012",
            "CSAFPID-0013",
            "CSAFPID-0014",
            "CSAFPID-0015",
            "CSAFPID-0016",
            "CSAFPID-0029",
            "CSAFPID-0030",
            "CSAFPID-0031",
            "CSAFPID-0032"
          ]
        }
      ],
      "title": "CVE-2019-13103"
    }
  ]
}


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