{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2022-29223",
        "STATE": "PUBLIC",
        "TITLE": "Buffer overflow on HUB descriptor in Azure RTOS USBX"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "usbx",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "< 6.1.10"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "azure-rtos"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Azure RTOS USBX is a USB host, device, and on-the-go (OTG) embedded stack. In versions prior to 6.1.10, an attacker can cause a buffer overflow by providing the Azure RTOS USBX host stack a HUB descriptor with `bNbPorts` set to a value greater than `UX_MAX_TT` which defaults to 8. For a `bNbPorts` value of 255, the implementation of `ux_host_class_hub_descriptor_get` function will modify the contents of `hub` -> `ux_host_class_hub_device` -> `ux_device_hub_tt` array violating the end boundary by 255 - `UX_MAX_TT` items. The USB host stack needs to validate the number of ports reported by the hub, and if the value is larger than UX_MAX_TT, USB stack needs to reject the request. This fix has been included in USBX release 6.1.10."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/azure-rtos/usbx/security/advisories/GHSA-2qc5-385m-x862",
                "refsource": "CONFIRM",
                "url": "https://github.com/azure-rtos/usbx/security/advisories/GHSA-2qc5-385m-x862"
            },
            {
                "name": "https://github.com/azure-rtos/usbx/releases/tag/v6.1.10_rel",
                "refsource": "MISC",
                "url": "https://github.com/azure-rtos/usbx/releases/tag/v6.1.10_rel"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-2qc5-385m-x862",
        "discovery": "UNKNOWN"
    }
}