{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "state": "PUBLISHED",
        "cveId": "CVE-2021-42521",
        "assignerOrgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5",
        "assignerShortName": "fedora",
        "dateUpdated": "2024-08-04T03:30:38.337Z",
        "dateReserved": "2021-10-15T00:00:00",
        "datePublished": "2022-08-25T00:00:00"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5",
                "shortName": "fedora",
                "dateUpdated": "2023-05-11T00:00:00"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "There is a NULL pointer dereference vulnerability in VTK before 9.2.5, and it lies in IO/Infovis/vtkXMLTreeReader.cxx. The vendor didn't check the return value of libxml2 API 'xmlDocGetRootElement', and try to dereference it. It is unsafe as the return value can be NULL and that NULL pointer dereference may crash the application."
                }
            ],
            "affected": [
                {
                    "vendor": "n/a",
                    "product": "vtk",
                    "versions": [
                        {
                            "version": "VTK - 9.0.0 and before",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://gitlab.kitware.com/vtk/vtk/issues/17818"
                },
                {
                    "url": "https://discourse.vtk.org/t/vtk-9-2-5-is-out/10549"
                },
                {
                    "name": "FEDORA-2023-2cf9dd7d52",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PCTMSAAVP4BW2HTZLDWMGKZ2WEC5OFLK/"
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "lang": "en",
                            "description": "CWE-400",
                            "cweId": "CWE-400"
                        }
                    ]
                }
            ]
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-04T03:30:38.337Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://gitlab.kitware.com/vtk/vtk/issues/17818",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://discourse.vtk.org/t/vtk-9-2-5-is-out/10549",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "name": "FEDORA-2023-2cf9dd7d52",
                        "tags": [
                            "vendor-advisory",
                            "x_transferred"
                        ],
                        "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PCTMSAAVP4BW2HTZLDWMGKZ2WEC5OFLK/"
                    }
                ]
            }
        ]
    }
}