{
  "document": {
    "title": "SSA-288459: Heap Overflow Vulnerability in RFID terminals",
    "category": "Siemens Security Advisory",
    "csaf_version": "2.0",
    "publisher": {
      "name": "Siemens ProductCERT",
      "contact_details": "productcert@siemens.com",
      "category": "vendor",
      "namespace": "https://www.siemens.com"
    },
    "distribution": {
      "text": "Disclosure is not limited.",
      "tlp": {
        "label": "WHITE"
      }
    },
    "tracking": {
      "id": "SSA-288459",
      "status": "final",
      "version": "1",
      "revision_history": [
        {
          "number": "1",
          "legacy_version": "1.0",
          "date": "2021-09-14T00:00:00Z",
          "summary": "Publication Date"
        }
      ],
      "initial_release_date": "2021-09-14T00:00:00Z",
      "current_release_date": "2021-09-14T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      }
    },
    "notes": [
      {
        "title": "Summary",
        "category": "summary",
        "text": "A heap overflow vulnerability in dhclient of the affected products, which has been published alongside other vulnerabilities as part of NAME:WRECK could allow an attacker to potentially remotely execute code.\n\nSiemens recommends specific countermeasures for products."
      },
      {
        "title": "General Recommendations",
        "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' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.\n\nAdditional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity"
      },
      {
        "title": "Additional Resources",
        "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": "Terms of Use",
        "category": "legal_disclaimer",
        "text": "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."
      }
    ],
    "references": [
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-288459.pdf",
        "summary": "SSA-288459: Heap Overflow Vulnerability in RFID terminals - PDF Version"
      },
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-288459.txt",
        "summary": "SSA-288459: Heap Overflow Vulnerability in RFID terminals - TXT Version"
      },
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-288459.json",
        "summary": "SSA-288459: Heap Overflow Vulnerability in RFID terminals - CSAF Version"
      }
    ]
  },
  "product_tree": {
    "branches": [
      {
        "name": "Siemens",
        "category": "vendor",
        "branches": [
          {
            "name": "SIMATIC RF350M",
            "category": "product_name",
            "branches": [
              {
                "name": "vers:all/*",
                "category": "product_version_range",
                "product": {
                  "product_id": "1",
                  "name": "SIMATIC RF350M"
                }
              }
            ]
          },
          {
            "name": "SIMATIC RF650M",
            "category": "product_name",
            "branches": [
              {
                "name": "vers:all/*",
                "category": "product_version_range",
                "product": {
                  "product_id": "2",
                  "name": "SIMATIC RF650M"
                }
              }
            ]
          }
        ]
      }
    ]
  },
  "vulnerabilities": [
    {
      "title": "CVE-2020-7461",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "In FreeBSD 12.1-STABLE before r365010, 11.4-STABLE before r365011, 12.1-RELEASE before p9, 11.4-RELEASE before p3, and 11.3-RELEASE before p13, dhclient(8) fails to handle certain malformed input related to handling of DHCP option 119 resulting a heap overflow. The heap overflow could in principle be exploited to achieve remote code execution. The affected process runs with reduced privileges in a Capsicum sandbox, limiting the immediate impact of an exploit."
        }
      ],
      "cve": "CVE-2020-7461",
      "cwe": {
        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "product_status": {
        "known_affected": [
          "1",
          "2"
        ]
      },
      "scores": [
        {
          "cvss_v3": {
            "version": "3.1",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:U/RC:C"
          },
          "products": [
            "1",
            "2"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1",
            "2"
          ],
          "category": "none_available",
          "details": "Currently no remediation is available"
        },
        {
          "product_ids": [
            "1",
            "2"
          ],
          "category": "mitigation",
          "details": "Use trusted DNS servers in internal network, and restrict DNS traffic to this network only through firewalls."
        },
        {
          "product_ids": [
            "1",
            "2"
          ],
          "category": "workaround",
          "details": "Protect network access to affected devices."
        }
      ],
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2020-7461.json",
          "summary": "CVE-2020-7461 Mitre 5.0 json"
        }
      ]
    }
  ]
}