cvelist/2021/32xxx/CVE-2021-32040.json

{
    "CVE_data_meta": {
        "ASSIGNER": "cna@mongodb.com",
        "DATE_PUBLIC": "2022-04-12T20:00:00.000Z",
        "ID": "CVE-2021-32040",
        "STATE": "PUBLIC",
        "TITLE": "Large aggregation pipelines with a specific stage can crash mongod under default configuration"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "MongoDB Server",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "5.0",
                                            "version_value": "5.0.4"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "4.4",
                                            "version_value": "4.4.11"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "4.2",
                                            "version_value": "4.2.16"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "MongoDB Inc."
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "It may be possible to have an extremely long aggregation pipeline in conjunction with a specific stage/operator and cause a stack overflow due to the size of the stack frames used by that stage. If an attacker could cause such an aggregation to occur, they could maliciously crash MongoDB in a DoS attack. This vulnerability affects MongoDB versions prior to 5.0.4, 4.4.11, 4.2.16."
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.0.9"
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-121 Stack-based Buffer Overflow"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "url": "https://jira.mongodb.org/browse/SERVER-58203",
                "name": "https://jira.mongodb.org/browse/SERVER-58203"
            },
            {
                "refsource": "MISC",
                "url": "https://jira.mongodb.org/browse/SERVER-59299",
                "name": "https://jira.mongodb.org/browse/SERVER-59299"
            },
            {
                "refsource": "MISC",
                "url": "https://jira.mongodb.org/browse/SERVER-60218",
                "name": "https://jira.mongodb.org/browse/SERVER-60218"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://security.netapp.com/advisory/ntap-20220609-0005/",
                "url": "https://security.netapp.com/advisory/ntap-20220609-0005/"
            }
        ]
    },
    "source": {
        "discovery": "EXTERNAL"
    },
    "work_around": [
        {
            "lang": "eng",
            "value": ">=4.2.16 users can add the --setParameter internalPipelineLengthLimit=50 instead of the default 1000 to mongod at startup to prevent a crash."
        }
    ]
}