{
  "document": {
    "title": "SSA-736385: Memory Corruption Vulnerability in OpenV2G",
    "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-736385",
      "status": "final",
      "version": "1",
      "revision_history": [
        {
          "number": "1",
          "legacy_version": "1.0",
          "date": "2022-05-10T00:00:00Z",
          "summary": "Publication Date"
        }
      ],
      "initial_release_date": "2022-05-10T00:00:00Z",
      "current_release_date": "2022-05-10T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      }
    },
    "notes": [
      {
        "title": "Summary",
        "category": "summary",
        "text": "The open source software OpenV2G contains a buffer overflow vulnerability that could allow an attacker to trigger a memory corruption.\n\nSiemens has released an update for the OpenV2G and recommends to update to the latest version."
      },
      {
        "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-736385.pdf",
        "summary": "SSA-736385: Memory Corruption Vulnerability in OpenV2G - PDF Version"
      },
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-736385.txt",
        "summary": "SSA-736385: Memory Corruption Vulnerability in OpenV2G - TXT Version"
      },
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-736385.json",
        "summary": "SSA-736385: Memory Corruption Vulnerability in OpenV2G - CSAF Version"
      }
    ],
    "acknowledgments": [
      {
        "names": [
          "Philipp Spiegelt",
          "Patrick Hochscheidt",
          "Steffen Sanwald"
        ],
        "organization": "Mercedes-Benz Tech Innovation",
        "summary": "reporting the vulnerability"
      }
    ]
  },
  "product_tree": {
    "branches": [
      {
        "name": "Siemens",
        "category": "vendor",
        "branches": [
          {
            "name": "OpenV2G",
            "category": "product_name",
            "branches": [
              {
                "name": "V0.9.4",
                "category": "product_version_range",
                "product": {
                  "product_id": "1",
                  "name": "OpenV2G"
                }
              }
            ]
          }
        ]
      }
    ]
  },
  "vulnerabilities": [
    {
      "title": "CVE-2022-27242",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "The OpenV2G EXI parsing feature is missing a length check when parsing X509 serial numbers. Thus, an attacker could introduce a buffer overflow that leads to memory corruption."
        }
      ],
      "cve": "CVE-2022-27242",
      "cwe": {
        "id": "CWE-120",
        "name": "Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')"
      },
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "scores": [
        {
          "cvss_v3": {
            "version": "3.1",
            "baseScore": 6.2,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C"
          },
          "products": [
            "1"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1"
          ],
          "category": "vendor_fix",
          "details": "Update to V0.9.5 or later version",
          "url": "https://sourceforge.net/projects/openv2g/"
        }
      ],
      "references": [
        {
          "url": "https://sourceforge.net/projects/openv2g/",
          "summary": "CVE-2022-27242 - OpenV2G"
        },
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2022-27242.json",
          "summary": "CVE-2022-27242 Mitre 5.0 json"
        }
      ]
    }
  ]
}