FKIE_CVE-2016-9846

Vulnerability from fkie_nvd - Published: 2016-12-29 22:59 - Updated: 2026-06-17 00:56
Severity
6.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Summary
QEMU (aka Quick Emulator) built with the Virtio GPU Device emulator support is vulnerable to a memory leakage issue. It could occur while updating the cursor data in update_cursor_data_virgl. A guest user/process could use this flaw to leak host memory bytes, resulting in DoS for a host.
References
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2016/12/05/18Mailing List, Third Party Advisory
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2016/12/05/23Mailing List, Third Party Advisory
secalert@redhat.comhttp://www.securityfocus.com/bid/94765Third Party Advisory, VDB Entry
secalert@redhat.comhttps://lists.gnu.org/archive/html/qemu-devel/2016-11/msg00029.htmlPatch, Vendor Advisory
secalert@redhat.comhttps://security.gentoo.org/glsa/201701-49Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2016/12/05/18Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2016/12/05/23Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/94765Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg00029.htmlPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/201701-49Third Party Advisory
Impacted products
Vendor Product Version
qemu qemu *
qemu qemu 2.8.0
qemu qemu 2.8.0
qemu qemu 2.8.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F83E2010-6463-407A-928D-DB71A705A04C",
              "versionEndIncluding": "2.7.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:qemu:qemu:2.8.0:rc0:*:*:*:*:*:*",
              "matchCriteriaId": "58947AD5-A971-4E22-8D8A-634E2ED5DECD",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:qemu:qemu:2.8.0:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "62294521-D8AD-43C1-9B53-D75243DC9A5B",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:qemu:qemu:2.8.0:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "436470C3-919A-40F0-9813-A34CD8F7CF29",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "QEMU (aka Quick Emulator) built with the Virtio GPU Device emulator support is vulnerable to a memory leakage issue. It could occur while updating the cursor data in update_cursor_data_virgl. A guest user/process could use this flaw to leak host memory bytes, resulting in DoS for a host."
    },
    {
      "lang": "es",
      "value": "QEMU (vulnerabilidad tambi\u00e9n conocido como Quick Emulator) construido con el soporte de emulador Virtio GPU Device es vulnerable a un problema de fuga de memoria. Podr\u00eda ocurrir mientras se actualizan los datos de cursor en update_cursor_data_virgl. Un usuario/proceso invitado podr\u00eda utilizar esta falla para filtrar bytes de memoria del host, resultrando en DoS para un host."
    }
  ],
  "id": "CVE-2016-9846",
  "lastModified": "2026-06-17T00:56:39.583",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 4.9,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 6.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.0,
        "impactScore": 4.0,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2016-12-29T22:59:00.573",
  "references": [
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2016/12/05/18"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2016/12/05/23"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/94765"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg00029.html"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.gentoo.org/glsa/201701-49"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2016/12/05/18"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2016/12/05/23"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/94765"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg00029.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.gentoo.org/glsa/201701-49"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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