{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "state": "PUBLISHED",
        "cveId": "CVE-2021-3329",
        "assignerOrgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
        "assignerShortName": "zephyr",
        "dateUpdated": "2024-08-03T16:53:17.491Z",
        "dateReserved": "2021-01-27T00:00:00",
        "datePublished": "2023-02-26T00:00:00"
    },
    "containers": {
        "cna": {
            "title": "DOS: Incorrect handling of the initial HCI ACL_MTU handshake packet leads to crash of bluetooth host layer",
            "datePublic": "2023-02-25T00:00:00",
            "providerMetadata": {
                "orgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
                "shortName": "zephyr",
                "dateUpdated": "2023-02-26T00:00:00"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Lack of proper validation in HCI Host stack initialization can cause a crash of the bluetooth stack"
                }
            ],
            "affected": [
                {
                    "vendor": "zephyrproject-rtos",
                    "product": "zephyr",
                    "versions": [
                        {
                            "version": "unspecified",
                            "lessThanOrEqual": "v2.4",
                            "status": "affected",
                            "versionType": "custom"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-117"
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H",
                        "attackVector": "ADJACENT_NETWORK",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "scope": "CHANGED",
                        "confidentialityImpact": "LOW",
                        "integrityImpact": "HIGH",
                        "availabilityImpact": "HIGH",
                        "baseScore": 9.6,
                        "baseSeverity": "CRITICAL"
                    }
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "lang": "en",
                            "description": "Improper Check or Handling of Exceptional Conditions (CWE-703)",
                            "cweId": "CWE-703"
                        }
                    ]
                }
            ],
            "source": {
                "defect": [
                    "https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-117"
                ]
            }
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-03T16:53:17.491Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-117",
                        "tags": [
                            "x_transferred"
                        ]
                    }
                ]
            }
        ]
    }
}