cvelist/2021/29xxx/CVE-2021-29433.json

{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2021-29433",
        "STATE": "PUBLIC",
        "TITLE": "Denial of service (via resource exhaustion) due to improper input validation"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "sydent",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "<= 2.2.0"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "matrix-org"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Sydent is a reference Matrix identity server. In Sydent versions 2.2.0 and prior, sissing input validation of some parameters on the endpoints used to confirm third-party identifiers could cause excessive use of disk space and memory leading to resource exhaustion. A patch for the vulnerability is in version 2.3.0. No workarounds are known to exist."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.3,
            "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:L",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "{\"CWE-20\":\"Improper Input Validation\"}"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/matrix-org/sydent/security/advisories/GHSA-pw4v-gr34-2553",
                "refsource": "CONFIRM",
                "url": "https://github.com/matrix-org/sydent/security/advisories/GHSA-pw4v-gr34-2553"
            },
            {
                "name": "https://github.com/matrix-org/sydent/commit/3175fd358ebc2c310eab7a3dbf296ce2bd54c1da",
                "refsource": "MISC",
                "url": "https://github.com/matrix-org/sydent/commit/3175fd358ebc2c310eab7a3dbf296ce2bd54c1da"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-pw4v-gr34-2553",
        "discovery": "UNKNOWN"
    }
}