{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2023-46840",
        "assignerOrgId": "23aa2041-22e1-471f-9209-9b7396fa234f",
        "state": "PUBLISHED",
        "assignerShortName": "XEN",
        "dateReserved": "2023-10-27T07:55:35.333Z",
        "datePublished": "2024-03-20T10:40:18.050Z",
        "dateUpdated": "2024-08-05T18:59:11.852Z"
    },
    "containers": {
        "cna": {
            "title": "VT-d: Failure to quarantine devices in !HVM builds",
            "datePublic": "2024-01-30T12:00:00Z",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Incorrect placement of a preprocessor directive in source code results\nin logic that doesn't operate as intended when support for HVM guests is\ncompiled out of Xen.\n"
                }
            ],
            "impacts": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "When a device is removed from a domain, it is not properly quarantined\nand retains its access to the domain to which it was previously\nassigned.\n"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "defaultStatus": "unknown",
                    "product": "Xen",
                    "vendor": "Xen",
                    "versions": [
                        {
                            "status": "unknown",
                            "version": "consult Xen advisory XSA-450"
                        }
                    ]
                }
            ],
            "configurations": [
                {
                    "lang": "en",
                    "value": "Xen 4.17 and onwards are vulnerable.  Xen 4.16 and older are not\nvulnerable.\n\nOnly Xen running on x86 platforms with an Intel-compatible VT-d IOMMU is\nvulnerable.  Platforms from other manufacturers, or platforms without a\nVT-d IOMMU are not vulnerable.\n\nOnly systems where PCI devices are passed through to untrusted or\nsemi-trusted guests are vulnerable.  Systems which do not assign PCI\ndevices to untrusted guests are not vulnerable.\n\nXen is only vulnerable when CONFIG_HVM is disabled at build time.  Most\ndeployments of Xen are expected to have CONFIG_HVM enabled at build\ntime, and would therefore not be vulnerable.\n"
                }
            ],
            "workarounds": [
                {
                    "lang": "en",
                    "value": "There is no mitigation.\n"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "This issue was discovered by Teddy Astie of Vates\n"
                }
            ],
            "references": [
                {
                    "url": "https://xenbits.xenproject.org/xsa/advisory-450.html"
                }
            ],
            "providerMetadata": {
                "orgId": "23aa2041-22e1-471f-9209-9b7396fa234f",
                "shortName": "XEN",
                "dateUpdated": "2024-03-20T10:40:18.050Z"
            }
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-02T20:53:21.926Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://xenbits.xenproject.org/xsa/advisory-450.html",
                        "tags": [
                            "x_transferred"
                        ]
                    }
                ]
            },
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2024-08-05T18:59:02.763689Z",
                                "id": "CVE-2023-46840",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-08-05T18:59:11.852Z"
                }
            }
        ]
    }
}