{
  "id": "CVE-2014-8480",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2014-11-10T11:55:09.720",
  "lastModified": "2025-04-12T10:46:40.837",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The instruction decoder in arch/x86/kvm/emulate.c in the KVM subsystem in the Linux kernel before 3.18-rc2 lacks intended decoder-table flags for certain RIP-relative instructions, which allows guest OS users to cause a denial of service (NULL pointer dereference and host OS crash) via a crafted application."
    },
    {
      "lang": "es",
      "value": "El decodificador de instrucciones en arch/x86/kvm/emulate.c en el subsistema KVM en el kernel de Linux anterior a 3.18-rc2 le falta indicadores de las tablas del decodificador para ciertas instrucciones relacionados con RIP, lo que permite a usuarios del sistema operativo invitado causar una denegaci\u00f3n de servicio (referencia a puntero nulo y ca\u00edda del sistema operativo anfitri\u00f3n) a trav\u00e9s de una aplicaci\u00f3n manipulada."
    }
  ],
  "metrics": {
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
          "baseScore": 4.9,
          "accessVector": "LOCAL",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "COMPLETE"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 3.9,
        "impactScore": 6.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-399"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:rc1:*:*:*:*:*:*",
              "versionEndIncluding": "3.18",
              "matchCriteriaId": "1892B391-62DB-4D08-9E2F-049AAA4840AD"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3f6f1480d86bf9fc16c160d803ab1d006e3058d5",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://thread.gmane.org/gmane.comp.emulators.kvm.devel/128427",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2014/10/23/7",
      "source": "cve@mitre.org",
      "tags": [
        "Exploit"
      ]
    },
    {
      "url": "http://www.securityfocus.com/bid/70710",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1156615",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/torvalds/linux/commit/3f6f1480d86bf9fc16c160d803ab1d006e3058d5",
      "source": "cve@mitre.org",
      "tags": [
        "Exploit"
      ]
    },
    {
      "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3f6f1480d86bf9fc16c160d803ab1d006e3058d5",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://thread.gmane.org/gmane.comp.emulators.kvm.devel/128427",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2014/10/23/7",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit"
      ]
    },
    {
      "url": "http://www.securityfocus.com/bid/70710",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1156615",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/torvalds/linux/commit/3f6f1480d86bf9fc16c160d803ab1d006e3058d5",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit"
      ]
    }
  ]
}