{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-04T18:18:56.351Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://xenbits.xenproject.org/xsa/advisory-450.html"
          },
          {
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XLL6SQ6IKFYXLYWITYZCRV5IBRK5G35R/"
          },
          {
            "url": "http://xenbits.xen.org/xsa/advisory-450.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "LOCAL",
              "availabilityImpact": "NONE",
              "baseScore": 4.1,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "HIGH",
              "privilegesRequired": "HIGH",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-46840",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-08-05T18:59:02.763689Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "description": "CWE-noinfo Not enough information",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-04T21:39:44.430Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "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"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "This issue was discovered by Teddy Astie of Vates\n"
        }
      ],
      "datePublic": "2024-01-30T12:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Incorrect placement of a preprocessor directive in source code results\nin logic that doesn\u0027t 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"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-03-20T10:40:18.050Z",
        "orgId": "23aa2041-22e1-471f-9209-9b7396fa234f",
        "shortName": "XEN"
      },
      "references": [
        {
          "url": "https://xenbits.xenproject.org/xsa/advisory-450.html"
        }
      ],
      "title": "VT-d: Failure to quarantine devices in !HVM builds",
      "workarounds": [
        {
          "lang": "en",
          "value": "There is no mitigation.\n"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "23aa2041-22e1-471f-9209-9b7396fa234f",
    "assignerShortName": "XEN",
    "cveId": "CVE-2023-46840",
    "datePublished": "2024-03-20T10:40:18.050Z",
    "dateReserved": "2023-10-27T07:55:35.333Z",
    "dateUpdated": "2025-11-04T18:18:56.351Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}