{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2023-36807",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2023-06-27T15:43:18.383Z",
        "datePublished": "2023-06-30T18:38:10.303Z",
        "dateUpdated": "2024-08-02T17:01:09.484Z"
    },
    "containers": {
        "cna": {
            "title": "Infinite Loop when reading malformed objects in pypdf",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-835",
                            "lang": "en",
                            "description": "CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "LOCAL",
                        "availabilityImpact": "HIGH",
                        "baseScore": 6.2,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-hm9v-vj3r-r55m",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-hm9v-vj3r-r55m"
                },
                {
                    "name": "https://github.com/py-pdf/pypdf/issues/1329",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/py-pdf/pypdf/issues/1329"
                },
                {
                    "name": "https://github.com/py-pdf/pypdf/pull/1331",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/py-pdf/pypdf/pull/1331"
                }
            ],
            "affected": [
                {
                    "vendor": "py-pdf",
                    "product": "pypdf",
                    "versions": [
                        {
                            "version": "2.10.5",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2023-06-30T18:38:10.303Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "pypdf is a pure-python PDF library capable of splitting, merging, cropping, and transforming the pages of PDF files. In version 2.10.5 an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This infinite loop blocks the current process and can utilize a single core of the CPU by 100%. It does not affect memory usage. That is, for example, the case if the user extracted metadata from such a malformed PDF. Versions prior to 2.10.5 throw an error, but do not hang forever. This issue was fixed with https://github.com/py-pdf/pypdf/pull/1331 which has been included in release 2.10.6. Users are advised to upgrade. Users unable to upgrade should modify `PyPDF2/generic/_data_structures.py::read_object` to an an error throwing case. See GHSA-hm9v-vj3r-r55m for details. "
                }
            ],
            "source": {
                "advisory": "GHSA-hm9v-vj3r-r55m",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-02T17:01:09.484Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "name": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-hm9v-vj3r-r55m",
                        "tags": [
                            "x_refsource_CONFIRM",
                            "x_transferred"
                        ],
                        "url": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-hm9v-vj3r-r55m"
                    },
                    {
                        "name": "https://github.com/py-pdf/pypdf/issues/1329",
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://github.com/py-pdf/pypdf/issues/1329"
                    },
                    {
                        "name": "https://github.com/py-pdf/pypdf/pull/1331",
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://github.com/py-pdf/pypdf/pull/1331"
                    }
                ]
            }
        ]
    }
}