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CVE-2016-9915

Estado: ModificadaMedia (6.5)—

Memory leak in hw/9pfs/9p-handle.c in QEMU (aka Quick Emulator) allows local privileged guest OS users to cause a denial of service (host memory consumption and possibly QEMU process crash) by leveraging a missing cleanup operation in the handle backend.

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 (2)

Debian — Debian LinuxQemu — Qemu

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2016-9915",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.9,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 4,
        "exploitabilityScore": 2
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2016-12-29T22:59:00.667",
  "references": [
    {
      "url": "http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=971f406b77a6eb84e0ad27dcc416b663765aee30",
      "source": "secalert@redhat.com"
    },
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      "tags": [
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      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg03278.html",
      "tags": [
        "Patch",
        "Vendor Advisory"
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      "source": "secalert@redhat.com"
    },
    {
      "url": "https://security.gentoo.org/glsa/201701-49",
      "tags": [
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      "source": "secalert@redhat.com"
    },
    {
      "url": "http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=971f406b77a6eb84e0ad27dcc416b663765aee30",
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    },
    {
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2016/12/08/7",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/94729",
      "tags": [
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        "VDB Entry"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg03278.html",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.gentoo.org/glsa/201701-49",
      "tags": [
        "Third Party 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": "Memory leak in hw/9pfs/9p-handle.c in QEMU (aka Quick Emulator) allows local privileged guest OS users to cause a denial of service (host memory consumption and possibly QEMU process crash) by leveraging a missing cleanup operation in the handle backend."
    },
    {
      "lang": "es",
      "value": "Fuga de memoria en hw/9pfs/9p-handle.c en QEMU (también conocido como Quick Emulator) permite a usuarios privilegiados locales del SO huésped provocar una denegación de servicio (consumo de memoria del host y posiblemente caída del proceso QEMU) aprovechando una operación de limpieza perdida en la backend manejada."
    }
  ],
  "lastModified": "2026-06-17T00:56:46.650",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
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              "vulnerable": true,
              "matchCriteriaId": "F83E2010-6463-407A-928D-DB71A705A04C",
              "versionEndIncluding": "2.7.1"
            },
            {
              "criteria": "cpe:2.3:a:qemu:qemu:2.8.0:rc0:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "58947AD5-A971-4E22-8D8A-634E2ED5DECD"
            },
            {
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              "matchCriteriaId": "62294521-D8AD-43C1-9B53-D75243DC9A5B"
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          "operator": "OR"
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          "cpeMatch": [
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              "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43"
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  "sourceIdentifier": "secalert@redhat.com"
}