ssa-155599
Vulnerability from csaf_siemens
Published
2022-03-08 00:00
Modified
2022-03-08 00:00
Summary
SSA-155599: File Parsing Vulnerabilities in COMOS

Notes

Summary
COMOS uses Drawings SDK from Open Design Alliance that is affected by multiple vulnerabilities that could be triggered when the application reads files in DGN, DXF or DWG file formats. If a user is tricked to open a malicious file with the affected application, an attacker could leverage the vulnerability to leak information or potentially perform remote code execution in the context of the current process. Siemens has released an update for the COMOS and recommends to update to the latest version.
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.


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{
  "document": {
    "category": "Siemens Security Advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited.",
      "tlp": {
        "label": "WHITE"
      }
    },
    "notes": [
      {
        "category": "summary",
        "text": "COMOS uses Drawings SDK from Open Design Alliance that is affected by multiple vulnerabilities that could be triggered when the application reads files in DGN, DXF or DWG file formats. If a user is tricked to open a malicious file with the affected application, an attacker could leverage the vulnerability to leak information or potentially perform remote code execution in the context of the current process.\n\nSiemens has released an update for the COMOS and recommends to update to the latest version.",
        "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: 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": "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-155599: File Parsing Vulnerabilities in COMOS - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-155599.pdf"
      },
      {
        "category": "self",
        "summary": "SSA-155599: File Parsing Vulnerabilities in COMOS - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-155599.txt"
      },
      {
        "category": "self",
        "summary": "SSA-155599: File Parsing Vulnerabilities in COMOS - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-155599.json"
      }
    ],
    "title": "SSA-155599: File Parsing Vulnerabilities in COMOS",
    "tracking": {
      "current_release_date": "2022-03-08T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      },
      "id": "SSA-155599",
      "initial_release_date": "2022-03-08T00:00:00Z",
      "revision_history": [
        {
          "date": "2022-03-08T00:00:00Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V10.4.1",
                "product": {
                  "name": "COMOS",
                  "product_id": "1"
                }
              }
            ],
            "category": "product_name",
            "name": "COMOS"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-25173",
      "cwe": {
        "id": "CWE-789",
        "name": "Memory Allocation with Excessive Size Value"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Open Design Alliance Drawings SDK before 2021.12 contains a memory allocation with excessive size vulnerability while parsing specially crafted DGN files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-12019)",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "summary": "CVE-2021-25173 - COMOS",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "summary": "CVE-2021-25173 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-25173.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V10.4.1 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in COMOS",
          "product_ids": [
            "1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2021-25173"
    },
    {
      "cve": "CVE-2021-25174",
      "cwe": {
        "id": "CWE-789",
        "name": "Memory Allocation with Excessive Size Value"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Open Design Alliance Drawings SDK before 2021.12 contains a memory allocation with excessive size vulnerability while parsing specially crafted DGN files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-12026)",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "summary": "CVE-2021-25174 - COMOS",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "summary": "CVE-2021-25174 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-25174.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V10.4.1 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in COMOS",
          "product_ids": [
            "1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2021-25174"
    },
    {
      "cve": "CVE-2021-25175",
      "cwe": {
        "id": "CWE-822",
        "name": "Untrusted Pointer Dereference"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Open Design Alliance Drawings SDK before 2021.11 contains a type conversion vulnerability while parsing specially crafted DXF and DWG files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-11912, ZDI-CAN-11993, ZDI-CAN-11988)",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "summary": "CVE-2021-25175 - COMOS",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "summary": "CVE-2021-25175 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-25175.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V10.4.1 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in COMOS",
          "product_ids": [
            "1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2021-25175"
    },
    {
      "cve": "CVE-2021-25176",
      "cwe": {
        "id": "CWE-822",
        "name": "Untrusted Pointer Dereference"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Open Design Alliance Drawings SDK before 2021.11 contains a NULL pointer dereference vulnerability while parsing DXF and DWG files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-11913, ZDI-CAN-11989)",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "summary": "CVE-2021-25176 - COMOS",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "summary": "CVE-2021-25176 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-25176.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V10.4.1 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in COMOS",
          "product_ids": [
            "1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2021-25176"
    },
    {
      "cve": "CVE-2021-25177",
      "cwe": {
        "id": "CWE-843",
        "name": "Access of Resource Using Incompatible Type (\u0027Type Confusion\u0027)"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Open Design Alliance Drawings SDK before 2021.11 contains a type confusion issue while parsing specially crafted DXF and DWG files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-11927)",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "summary": "CVE-2021-25177 - COMOS",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "summary": "CVE-2021-25177 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-25177.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V10.4.1 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in COMOS",
          "product_ids": [
            "1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2021-25177"
    },
    {
      "cve": "CVE-2021-25178",
      "cwe": {
        "id": "CWE-121",
        "name": "Stack-based Buffer Overflow"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Open Design Alliance Drawings SDK before 2021.11 contains a stack-based buffer overflow vulnerability while parsing specially crafted DXF or DWG files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-11901, ZDI-CAN-12165, ZDI-CAN-12166)",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "summary": "CVE-2021-25178 - COMOS",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "summary": "CVE-2021-25178 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-25178.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V10.4.1 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in COMOS",
          "product_ids": [
            "1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2021-25178"
    },
    {
      "cve": "CVE-2021-31784",
      "cwe": {
        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Open Design Alliance Drawings SDK before 2021.6 contains an out-of-bounds write issue while parsing specially crafted DXF files. This could result in a write past the end of an allocated buffer and allow an attacker to execute code in the context of the current process. (ZDI-CAN-11915)",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "summary": "CVE-2021-31784 - COMOS",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "summary": "CVE-2021-31784 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-31784.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V10.4.1 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in COMOS",
          "product_ids": [
            "1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2021-31784"
    },
    {
      "cve": "CVE-2021-32936",
      "cwe": {
        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Open Design Alliance Drawings SDK before 2022.4 contains an out-of-bounds write issue while parsing specially crafted DXF files. This could result in a write past the end of an allocated buffer and allow an attacker to execute code in the context of the current process. (ZDI-CAN-13408)",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "summary": "CVE-2021-32936 - COMOS",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "summary": "CVE-2021-32936 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-32936.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V10.4.1 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in COMOS",
          "product_ids": [
            "1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2021-32936"
    },
    {
      "cve": "CVE-2021-32938",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Open Design Alliance Drawings SDK before 2022.4 are vulnerable to an out-of-bounds read while parsing specially crafted DWG files. This could allow an attacker to read sensitive information from memory locations and to cause a denial of service (crash). (ZDI-CAN-13378)",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "summary": "CVE-2021-32938 - COMOS",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "summary": "CVE-2021-32938 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-32938.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V10.4.1 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in COMOS",
          "product_ids": [
            "1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2021-32938"
    },
    {
      "cve": "CVE-2021-32940",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Open Design Alliance Drawings SDK before 2022.4 are vulnerable to an out-of-bounds read while parsing specially crafted DWG files. This could allow an attacker to read sensitive information from memory locations and to cause a denial of service. (ZDI-CAN-13412)",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "summary": "CVE-2021-32940 - COMOS",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "summary": "CVE-2021-32940 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-32940.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V10.4.1 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in COMOS",
          "product_ids": [
            "1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2021-32940"
    },
    {
      "cve": "CVE-2021-32944",
      "cwe": {
        "id": "CWE-416",
        "name": "Use After Free"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Open Design Alliance Drawings SDK before 2021.11 contains a use-after-free vulnerability while parsing specially crafted DGN files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-13468, ZDI-CAN-13413)",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "summary": "CVE-2021-32944 - COMOS",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "summary": "CVE-2021-32944 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-32944.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V10.4.1 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in COMOS",
          "product_ids": [
            "1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2021-32944"
    },
    {
      "cve": "CVE-2021-32946",
      "cwe": {
        "id": "CWE-754",
        "name": "Improper Check for Unusual or Exceptional Conditions"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Open Design Alliance Drawings SDK before 2022.4 are vulnerable to improper check for unusual or exceptional conditions while parsing specially crafted DGN files. This could allow an attacker to cause a denial-of-service condition or execute code in the context of the current process. (ZDI-CAN-13411, ZDI-CAN-13409)",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "summary": "CVE-2021-32946 - COMOS",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "summary": "CVE-2021-32946 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-32946.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V10.4.1 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in COMOS",
          "product_ids": [
            "1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2021-32946"
    },
    {
      "cve": "CVE-2021-32948",
      "cwe": {
        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Open Design Alliance Drawings SDK before 2022.4 contains an out-of-bounds write issue while parsing specially crafted DWG files. This could result in a write past the end of an allocated buffer and allow an attacker to execute code in the context of the current process. (ZDI-CAN-13410)",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "summary": "CVE-2021-32948 - COMOS",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "summary": "CVE-2021-32948 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-32948.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V10.4.1 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in COMOS",
          "product_ids": [
            "1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2021-32948"
    },
    {
      "cve": "CVE-2021-32950",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Open Design Alliance Drawings SDK before 2022.4 are vulnerable to an out-of-bounds read while parsing specially crafted DXF files. This could allow an attacker to read sensitive information from memory locations and to cause a denial of service. (ZDI-CAN-13415)",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "summary": "CVE-2021-32950 - COMOS",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "summary": "CVE-2021-32950 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-32950.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V10.4.1 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in COMOS",
          "product_ids": [
            "1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2021-32950"
    },
    {
      "cve": "CVE-2021-32952",
      "cwe": {
        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Open Design Alliance Drawings SDK before 2022.4 contains an out-of-bounds write issue while parsing specially crafted DGN files. This could result in a write past the end of an allocated buffer and allow an attacker to execute code in the context of the current process. (ZDI-CAN-13417)",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "summary": "CVE-2021-32952 - COMOS",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "summary": "CVE-2021-32952 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-32952.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V10.4.1 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805632/"
        },
        {
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in COMOS",
          "product_ids": [
            "1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2021-32952"
    }
  ]
}


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