{
  "id": "CVE-2010-4247",
  "sourceIdentifier": "secalert@redhat.com",
  "published": "2011-01-11T03:00:04.063",
  "lastModified": "2023-11-07T02:06:14.867",
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "The do_block_io_op function in (1) drivers/xen/blkback/blkback.c and (2) drivers/xen/blktap/blktap.c in Xen before 3.4.0 for the Linux kernel 2.6.18, and possibly other versions, allows guest OS users to cause a denial of service (infinite loop and CPU consumption) via a large production request index to the blkback or blktap back-end drivers.  NOTE: some of these details are obtained from third party information."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n do_block_io_op en (1) ldrivers/xen/blkback/blkback.c and (2) drivers/xen/blktap/blktap.c en Xen anterior a v3.4.0 para el kernel Linux v2.6.18, y posiblemente otras versiones, permite a los usuarios invitados del sistema operativo causar una denegaci\u00f3n de servicio (bucle infinito y el consumo de CPU) a trav\u00e9s de un gran \u00edndice de producci\u00f3n de peticiones a los controladores blkback o blktap back-end. NOTA: algunos de estos detalles han sido obtenidos de informaci\u00f3n de terceros."
    }
  ],
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        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:A/AC:L/Au:S/C:N/I:N/A:C",
          "accessVector": "ADJACENT_NETWORK",
          "accessComplexity": "LOW",
          "authentication": "SINGLE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 5.5
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 5.1,
        "impactScore": 6.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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  "weaknesses": [
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      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
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          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
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  "references": [
    {
      "url": "http://secunia.com/advisories/35093",
      "source": "secalert@redhat.com",
      "tags": [
        "Vendor Advisory"
      ]
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      "url": "http://secunia.com/advisories/46397",
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      "url": "http://www.openwall.com/lists/oss-security/2010/11/23/1",
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      "tags": [
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      "source": "secalert@redhat.com",
      "tags": [
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      "url": "http://www.securityfocus.com/archive/1/520102/100/0/threaded",
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      "url": "http://www.securityfocus.com/bid/45029",
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      "url": "http://www.vupen.com/english/advisories/2011/0024",
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}