{
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    "dataVersion": "5.1",
    "cveMetadata": {
        "state": "PUBLISHED",
        "cveId": "CVE-2021-42553",
        "assignerOrgId": "455daabc-a392-441d-aa46-37d35189897c",
        "assignerShortName": "NCSC.ch",
        "dateUpdated": "2024-08-04T03:38:49.280Z",
        "dateReserved": "2021-10-15T00:00:00",
        "datePublished": "2022-10-21T00:00:00"
    },
    "containers": {
        "cna": {
            "title": "STM32 USB Host Library Buffer Overflow",
            "providerMetadata": {
                "orgId": "455daabc-a392-441d-aa46-37d35189897c",
                "shortName": "NCSC.ch",
                "dateUpdated": "2023-03-07T00:00:00"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A buffer overflow vulnerability in stm32_mw_usb_host of STMicroelectronics in versions before 3.5.1 allows an attacker to execute arbitrary code when the descriptor contains more endpoints than USBH_MAX_NUM_ENDPOINTS. The library is typically integrated when using a RTOS such as FreeRTOS on STM32 MCUs."
                }
            ],
            "affected": [
                {
                    "vendor": "STMicroelectronics STM32Cube ",
                    "product": "STM32 USB Host Library",
                    "versions": [
                        {
                            "version": "all",
                            "status": "affected",
                            "lessThan": "3.5.1",
                            "versionType": "custom"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://github.com/STMicroelectronics/stm32_mw_usb_host/pull/4"
                },
                {
                    "url": "https://github.com/STMicroelectronics/stm32_mw_usb_host"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "github.com/Defonceuse"
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                        "attackVector": "PHYSICAL",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "availabilityImpact": "HIGH",
                        "baseScore": 6.8,
                        "baseSeverity": "MEDIUM"
                    }
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "text",
                            "lang": "en",
                            "description": "buffer overflow"
                        }
                    ]
                }
            ],
            "x_generator": {
                "engine": "Vulnogram 0.0.9"
            },
            "source": {
                "discovery": "EXTERNAL"
            }
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-04T03:38:49.280Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://github.com/STMicroelectronics/stm32_mw_usb_host/pull/4",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://github.com/STMicroelectronics/stm32_mw_usb_host",
                        "tags": [
                            "x_transferred"
                        ]
                    }
                ]
            }
        ]
    }
}