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CVE-2022-42325

Estado: ModificadaMedia (5.5)—

Xenstore: los invitados pueden crear una cantidad arbitraria de nodos mediante transacciones. Este registro de información CNA se relaciona con múltiples CVE; el texto explica qué aspectos/vulnerabilidades corresponden a qué CVE.] En caso de que se haya creado un nodo en una transacción y luego se elimine en la misma transacción, la transacción finalizará con un error. Como este error se encuentra solo al manejar el nodo eliminado al finalizar la transacción, la transacción se habrá realizado parcialmente y sin actualizar la información contable. Esto permitirá que un invitado malintencionado cree una cantidad arbitraria de nodos.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (3)

Debian — Debian LinuxFedoraproject — FedoraXEN — XEN

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2022-42325",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@xen.org",
      "affectedData": [
        {
          "vendor": "Xen",
          "product": "xen",
          "versions": [
            {
              "status": "unknown",
              "version": "consult Xen advisory XSA-421"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-11-01T13:15:12.067",
  "references": [
    {
      "url": "http://www.openwall.com/lists/oss-security/2022/11/01/11",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "security@xen.org"
    },
    {
      "url": "http://xenbits.xen.org/xsa/advisory-421.html",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "security@xen.org"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/",
      "source": "security@xen.org"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/",
      "source": "security@xen.org"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/",
      "source": "security@xen.org"
    },
    {
      "url": "https://security.gentoo.org/glsa/202402-07",
      "source": "security@xen.org"
    },
    {
      "url": "https://www.debian.org/security/2022/dsa-5272",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "security@xen.org"
    },
    {
      "url": "https://xenbits.xenproject.org/xsa/advisory-421.txt",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "security@xen.org"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2022/11/01/11",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://xenbits.xen.org/xsa/advisory-421.html",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.gentoo.org/glsa/202402-07",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.debian.org/security/2022/dsa-5272",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://xenbits.xenproject.org/xsa/advisory-421.txt",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Xenstore: Guests can create arbitrary number of nodes via transactions T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] In case a node has been created in a transaction and it is later deleted in the same transaction, the transaction will be terminated with an error. As this error is encountered only when handling the deleted node at transaction finalization, the transaction will have been performed partially and without updating the accounting information. This will enable a malicious guest to create arbitrary number of nodes."
    },
    {
      "lang": "es",
      "value": "Xenstore: los invitados pueden crear una cantidad arbitraria de nodos mediante transacciones. Este registro de información CNA se relaciona con múltiples CVE; el texto explica qué aspectos/vulnerabilidades corresponden a qué CVE.] En caso de que se haya creado un nodo en una transacción y luego se elimine en la misma transacción, la transacción finalizará con un error. Como este error se encuentra solo al manejar el nodo eliminado al finalizar la transacción, la transacción se habrá realizado parcialmente y sin actualizar la información contable. Esto permitirá que un invitado malintencionado cree una cantidad arbitraria de nodos."
    }
  ],
  "lastModified": "2026-06-17T05:04:43.727",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "49311C62-4662-40C1-9F0D-B366D8C1379F",
              "versionStartIncluding": "4.9.0"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED"
            },
            {
              "criteria": "cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "80E516C0-98A4-4ADE-B69F-66A772E2BAAA"
            },
            {
              "criteria": "cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5C675112-476C-4D7C-BCB9-A2FB2D0BC9FD"
            },
            {
              "criteria": "cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E30D0E6F-4AE8-4284-8716-991DFA48CC5D"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@xen.org"
}