gsd-2011-4622
Vulnerability from gsd
Modified
2023-12-13 01:19
Details
The create_pit_timer function in arch/x86/kvm/i8254.c in KVM 83, and possibly other versions, does not properly handle when Programmable Interval Timer (PIT) interrupt requests (IRQs) when a virtual interrupt controller (irqchip) is not available, which allows local users to cause a denial of service (NULL pointer dereference) by starting a timer.
Aliases
Aliases
CVE-2011-4622


To clipboard 

{
  "GSD": {
    "alias": "CVE-2011-4622",
    "description": "The create_pit_timer function in arch/x86/kvm/i8254.c in KVM 83, and possibly other versions, does not properly handle when Programmable Interval Timer (PIT) interrupt requests (IRQs) when a virtual interrupt controller (irqchip) is not available, which allows local users to cause a denial of service (NULL pointer dereference) by starting a timer.",
    "id": "GSD-2011-4622",
    "references": [
      "https://www.suse.com/security/cve/CVE-2011-4622.html",
      "https://www.debian.org/security/2012/dsa-2389",
      "https://access.redhat.com/errata/RHSA-2012:0350",
      "https://access.redhat.com/errata/RHSA-2012:0051",
      "https://alas.aws.amazon.com/cve/html/CVE-2011-4622.html",
      "https://linux.oracle.com/cve/CVE-2011-4622.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2011-4622"
      ],
      "details": "The create_pit_timer function in arch/x86/kvm/i8254.c in KVM 83, and possibly other versions, does not properly handle when Programmable Interval Timer (PIT) interrupt requests (IRQs) when a virtual interrupt controller (irqchip) is not available, which allows local users to cause a denial of service (NULL pointer dereference) by starting a timer.",
      "id": "GSD-2011-4622",
      "modified": "2023-12-13T01:19:05.618258Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2011-4622",
        "STATE": "PUBLIC"
      },
      "affects": {
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          "vendor_data": [
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              "product": {
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                    "version": {
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                          "version_value": "n/a"
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          }
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          {
            "name": "http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html",
            "refsource": "MISC",
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          },
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            "refsource": "MISC",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html"
          },
          {
            "name": "http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/83564",
            "refsource": "MISC",
            "url": "http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/83564"
          },
          {
            "name": "http://www.openwall.com/lists/oss-security/2011/12/21/7",
            "refsource": "MISC",
            "url": "http://www.openwall.com/lists/oss-security/2011/12/21/7"
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            "refsource": "MISC",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=769721"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
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        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:redhat:kvm:83:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
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        ]
      },
      "cve": {
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          "ID": "CVE-2011-4622"
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        "description": {
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            }
          ]
        },
        "problemtype": {
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                {
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                  "value": "NVD-CWE-noinfo"
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        },
        "references": {
          "reference_data": [
            {
              "name": "[kvm] 20111214 [PATCH 1/2] KVM: x86: Prevent starting PIT timers in the absence of irqchip support",
              "refsource": "MLIST",
              "tags": [
                "Patch"
              ],
              "url": "http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/83564"
            },
            {
              "name": "RHSA-2012:0051",
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              "url": "http://www.redhat.com/support/errata/RHSA-2012-0051.html"
            },
            {
              "name": "[oss-security] 20111221 Re: kernel: kvm: pit timer with no irqchip crashes the system",
              "refsource": "MLIST",
              "tags": [],
              "url": "http://www.openwall.com/lists/oss-security/2011/12/21/7"
            },
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              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=769721",
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              "url": "http://www.securityfocus.com/bid/51172"
            },
            {
              "name": "openSUSE-SU-2013:0925",
              "refsource": "SUSE",
              "tags": [],
              "url": "http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html"
            },
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              "name": "SUSE-SU-2012:0616",
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            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "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,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        }
      },
      "lastModifiedDate": "2017-12-29T02:29Z",
      "publishedDate": "2012-01-27T15:55Z"
    }
  }
}


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