{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2024-31146",
        "assignerOrgId": "23aa2041-22e1-471f-9209-9b7396fa234f",
        "state": "PUBLISHED",
        "assignerShortName": "XEN",
        "dateReserved": "2024-03-28T18:14:12.893Z",
        "datePublished": "2024-09-25T10:31:51.154Z",
        "dateUpdated": "2024-09-25T13:24:47.409Z"
    },
    "containers": {
        "cna": {
            "title": "PCI device pass-through with shared resources",
            "datePublic": "2024-08-13T12:00:00Z",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "When multiple devices share resources and one of them is to be passed\nthrough to a guest, security of the entire system and of respective\nguests individually cannot really be guaranteed without knowing\ninternals of any of the involved guests.  Therefore such a configuration\ncannot really be security-supported, yet making that explicit was so far\nmissing.\n\nResources the sharing of which is known to be problematic include, but\nare not limited to\n- - PCI Base Address Registers (BARs) of multiple devices mapping to the\n  same page (4k on x86),\n- - INTx lines."
                }
            ],
            "impacts": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "The precise effects when shared resources are in use are system, device,\nguest, and resource specific.  None of privilege escalation, information\nleaks, or Denial of Service (DoS) can be ruled out."
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "defaultStatus": "unknown",
                    "product": "Xen",
                    "vendor": "Xen",
                    "versions": [
                        {
                            "status": "unknown",
                            "version": "consult Xen advisory XSA-461"
                        }
                    ]
                }
            ],
            "configurations": [
                {
                    "lang": "en",
                    "value": "All systems making use of PCI pass-through are in principle vulnerable,\nwhen any kind of resource is shared.  Just to re-iterate, even in the\nabsence of resource sharing caveats apply to passing through of PCI\ndevices to entirely untrusted guests."
                }
            ],
            "workarounds": [
                {
                    "lang": "en",
                    "value": "Passing through only SR-IOV virtual functions or devices with well-\nseparated resources will avoid this particular vulnerability.  Passing\nthrough all devices sharing a given resource to the same guest will also\navoid this particular vulnerability."
                }
            ],
            "references": [
                {
                    "url": "https://xenbits.xenproject.org/xsa/advisory-461.html"
                }
            ],
            "providerMetadata": {
                "orgId": "23aa2041-22e1-471f-9209-9b7396fa234f",
                "shortName": "XEN",
                "dateUpdated": "2024-09-25T10:31:51.154Z"
            }
        },
        "adp": [
            {
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "http://xenbits.xen.org/xsa/advisory-461.html"
                    },
                    {
                        "url": "http://www.openwall.com/lists/oss-security/2024/08/14/3"
                    }
                ],
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-09-25T11:02:55.207Z"
                }
            },
            {
                "problemTypes": [
                    {
                        "descriptions": [
                            {
                                "type": "CWE",
                                "cweId": "CWE-400",
                                "lang": "en",
                                "description": "CWE-400 Uncontrolled Resource Consumption"
                            }
                        ]
                    }
                ],
                "affected": [
                    {
                        "vendor": "xen",
                        "product": "xen",
                        "cpes": [
                            "cpe:2.3:o:xen:xen:-:*:*:*:*:*:*:*"
                        ],
                        "defaultStatus": "unknown",
                        "versions": [
                            {
                                "version": "0",
                                "status": "affected",
                                "lessThanOrEqual": "*",
                                "versionType": "custom"
                            }
                        ]
                    }
                ],
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "CHANGED",
                            "version": "3.1",
                            "baseScore": 7.5,
                            "attackVector": "LOCAL",
                            "baseSeverity": "HIGH",
                            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
                            "integrityImpact": "HIGH",
                            "userInteraction": "NONE",
                            "attackComplexity": "HIGH",
                            "availabilityImpact": "HIGH",
                            "privilegesRequired": "HIGH",
                            "confidentialityImpact": "HIGH"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2024-09-25T13:14:46.996097Z",
                                "id": "CVE-2024-31146",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-09-25T13:24:47.409Z"
                }
            }
        ]
    }
}