CVE-2012-2121
Vulnerability from cvelistv5
Published
2012-05-17 10:00
Modified
2024-08-06 19:26
Severity ?
Summary
The KVM implementation in the Linux kernel before 3.3.4 does not properly manage the relationships between memory slots and the iommu, which allows guest OS users to cause a denial of service (memory leak and host OS crash) by leveraging administrative access to the guest OS to conduct hotunplug and hotplug operations on devices.
References
secalert@redhat.comhttp://rhn.redhat.com/errata/RHSA-2012-0676.html
secalert@redhat.comhttp://rhn.redhat.com/errata/RHSA-2012-0743.html
secalert@redhat.comhttp://secunia.com/advisories/50732
secalert@redhat.comhttp://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.4
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2012/04/19/16
secalert@redhat.comhttp://www.securitytracker.com/id?1027083
secalert@redhat.comhttp://www.ubuntu.com/usn/USN-1577-1
secalert@redhat.comhttp://www.ubuntu.com/usn/USN-2036-1
secalert@redhat.comhttp://www.ubuntu.com/usn/USN-2037-1
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=814149
secalert@redhat.comhttps://github.com/torvalds/linux/commit/09ca8e1173bcb12e2a449698c9ae3b86a8a10195
Impacted products
n/an/a
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T19:26:08.276Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "50732",
            "tags": [
              "third-party-advisory",
              "x_refsource_SECUNIA",
              "x_transferred"
            ],
            "url": "http://secunia.com/advisories/50732"
          },
          {
            "name": "RHSA-2012:0743",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2012-0743.html"
          },
          {
            "name": "1027083",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id?1027083"
          },
          {
            "name": "[oss-security] 20120419 Re: CVE request -- kernel: kvm: device assignment page leak",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2012/04/19/16"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=814149"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/torvalds/linux/commit/09ca8e1173bcb12e2a449698c9ae3b86a8a10195"
          },
          {
            "name": "USN-1577-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-1577-1"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.4"
          },
          {
            "name": "USN-2036-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-2036-1"
          },
          {
            "name": "USN-2037-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-2037-1"
          },
          {
            "name": "RHSA-2012:0676",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2012-0676.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2012-04-19T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "The KVM implementation in the Linux kernel before 3.3.4 does not properly manage the relationships between memory slots and the iommu, which allows guest OS users to cause a denial of service (memory leak and host OS crash) by leveraging administrative access to the guest OS to conduct hotunplug and hotplug operations on devices."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-01-04T20:57:01",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "50732",
          "tags": [
            "third-party-advisory",
            "x_refsource_SECUNIA"
          ],
          "url": "http://secunia.com/advisories/50732"
        },
        {
          "name": "RHSA-2012:0743",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "http://rhn.redhat.com/errata/RHSA-2012-0743.html"
        },
        {
          "name": "1027083",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id?1027083"
        },
        {
          "name": "[oss-security] 20120419 Re: CVE request -- kernel: kvm: device assignment page leak",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2012/04/19/16"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=814149"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/torvalds/linux/commit/09ca8e1173bcb12e2a449698c9ae3b86a8a10195"
        },
        {
          "name": "USN-1577-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-1577-1"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.4"
        },
        {
          "name": "USN-2036-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-2036-1"
        },
        {
          "name": "USN-2037-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-2037-1"
        },
        {
          "name": "RHSA-2012:0676",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "http://rhn.redhat.com/errata/RHSA-2012-0676.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2012-2121",
    "datePublished": "2012-05-17T10:00:00",
    "dateReserved": "2012-04-04T00:00:00",
    "dateUpdated": "2024-08-06T19:26:08.276Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2012-2121\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2012-05-17T11:00:38.210\",\"lastModified\":\"2018-01-05T02:29:32.100\",\"vulnStatus\":\"Modified\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"The KVM implementation in the Linux kernel before 3.3.4 does not properly manage the relationships between memory slots and the iommu, which allows guest OS users to cause a denial of service (memory leak and host OS crash) by leveraging administrative access to the guest OS to conduct hotunplug and hotplug operations on devices.\"},{\"lang\":\"es\",\"value\":\"La implementaci\u00f3n de KVM en el kernel de Linux en versiones anteriores a la v3.3.4 no gestiona correctamente la relaci\u00f3n entre las ranuras de memoria y el IOMMU, lo que permite causar una denegaci\u00f3n de servicio (ca\u00edda del sistema host) a los usuarios de sistemas operativos virtuales que funcionen bajo esa plataforma , aprovechandose del acceso de administraci\u00f3n a un sistema operativo invitado para llevar a cabo operaciones \u0027hotunplug\u0027 y \u0027hotplug\u0027 en los dispositivos.\"}],\"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\",\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"COMPLETE\",\"baseScore\":4.9},\"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-264\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"3.3.3\",\"matchCriteriaId\":\"6FF9F960-C2EA-4018-94CE-8D893CA8A7F9\"}]}]}],\"references\":[{\"url\":\"http://rhn.redhat.com/errata/RHSA-2012-0676.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://rhn.redhat.com/errata/RHSA-2012-0743.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://secunia.com/advisories/50732\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.4\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2012/04/19/16\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.securitytracker.com/id?1027083\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.ubuntu.com/usn/USN-1577-1\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.ubuntu.com/usn/USN-2036-1\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.ubuntu.com/usn/USN-2037-1\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=814149\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://github.com/torvalds/linux/commit/09ca8e1173bcb12e2a449698c9ae3b86a8a10195\",\"source\":\"secalert@redhat.com\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.