fkie_cve-2022-23035
Vulnerability from fkie_nvd
Published
2022-01-25 14:15
Modified
2024-11-21 06:47
Severity ?
4.6 (Medium) - CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Insufficient cleanup of passed-through device IRQs The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest's use of the device. In the case where an interrupt is not quiescent yet at the time this cleanup gets invoked, the cleanup attempt may be scheduled to be retried. When multiple interrupts are involved, this scheduling of a retry may get erroneously skipped. At the same time pointers may get cleared (resulting in a de-reference of NULL) and freed (resulting in a use-after-free), while other code would continue to assume them to be valid.
References
security@xen.orghttp://www.openwall.com/lists/oss-security/2022/01/25/4Mailing List, Patch, Third Party Advisory
security@xen.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OMR6UBGJW6JKND7IILGQ2CU35EQPF3E3/
security@xen.orghttps://security.gentoo.org/glsa/202208-23Third Party Advisory
security@xen.orghttps://www.debian.org/security/2022/dsa-5117Third Party Advisory
security@xen.orghttps://xenbits.xenproject.org/xsa/advisory-395.txtVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2022/01/25/4Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OMR6UBGJW6JKND7IILGQ2CU35EQPF3E3/
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202208-23Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2022/dsa-5117Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://xenbits.xenproject.org/xsa/advisory-395.txtVendor Advisory
Impacted products
Vendor Product Version
xen xen *
fedoraproject fedora 34
debian debian_linux 11.0


To clipboard 

{
  "configurations": [
    {
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              "versionStartIncluding": "4.6.0",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Insufficient cleanup of passed-through device IRQs The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest\u0027s use of the device. In the case where an interrupt is not quiescent yet at the time this cleanup gets invoked, the cleanup attempt may be scheduled to be retried. When multiple interrupts are involved, this scheduling of a retry may get erroneously skipped. At the same time pointers may get cleared (resulting in a de-reference of NULL) and freed (resulting in a use-after-free), while other code would continue to assume them to be valid."
    },
    {
      "lang": "es",
      "value": "Un saneo insuficiente de las IRQs de dispositivos pasados. La administraci\u00f3n de las IRQs asociadas a dispositivos f\u00edsicos expuestos a hu\u00e9spedes x86 HVM implica una operaci\u00f3n iterativa en particular cuando es limpiada despu\u00e9s del uso del dispositivo por parte del hu\u00e9sped. En el caso de que una interrupci\u00f3n no est\u00e9 quieta todav\u00eda en el momento en que es invocado este saneo, el intento de saneo puede ser programado para ser reintentado. Cuando se presentan varias interrupciones involucradas, esta programaci\u00f3n de un reintento puede omitirse err\u00f3neamente. Al mismo tiempo, los punteros pueden ser borrados (resultando en una desreferencia de NULL) y liberados (resultando en un uso de memoria previamente liberada), mientras que otro c\u00f3digo continuar\u00eda asumiendo que son v\u00e1lidos"
    }
  ],
  "id": "CVE-2022-23035",
  "lastModified": "2024-11-21T06:47:51.253",
  "metrics": {
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        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 4.7,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:C",
          "version": "2.0"
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        "exploitabilityScore": 3.4,
        "impactScore": 6.9,
        "obtainAllPrivilege": false,
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  "published": "2022-01-25T14:15:09.053",
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  "sourceIdentifier": "security@xen.org",
  "vulnStatus": "Modified",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-459"
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      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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