gsd-2006-6730
Vulnerability from gsd
Modified
2023-12-13 01:19
Details
OpenBSD and NetBSD permit usermode code to kill the display server and write to the X.Org /dev/xf86 device, which allows local users with root privileges to reduce securelevel by replacing the System Management Mode (SMM) handler via a write to an SMRAM address within /dev/xf86 (aka the video card memory-mapped I/O range), and then launching the new handler via a System Management Interrupt (SMI), as demonstrated by a write to Programmed I/O port 0xB2.
Aliases
Aliases
CVE-2006-6730


To clipboard 

{
  "GSD": {
    "alias": "CVE-2006-6730",
    "description": "OpenBSD and NetBSD permit usermode code to kill the display server and write to the X.Org /dev/xf86 device, which allows local users with root privileges to reduce securelevel by replacing the System Management Mode (SMM) handler via a write to an SMRAM address within /dev/xf86 (aka the video card memory-mapped I/O range), and then launching the new handler via a System Management Interrupt (SMI), as demonstrated by a write to Programmed I/O port 0xB2.",
    "id": "GSD-2006-6730"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2006-6730"
      ],
      "details": "OpenBSD and NetBSD permit usermode code to kill the display server and write to the X.Org /dev/xf86 device, which allows local users with root privileges to reduce securelevel by replacing the System Management Mode (SMM) handler via a write to an SMRAM address within /dev/xf86 (aka the video card memory-mapped I/O range), and then launching the new handler via a System Management Interrupt (SMI), as demonstrated by a write to Programmed I/O port 0xB2.",
      "id": "GSD-2006-6730",
      "modified": "2023-12-13T01:19:54.180189Z",
      "schema_version": "1.4.0"
    }
  },
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        "ID": "CVE-2006-6730",
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      },
      "affects": {
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                    "version": {
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          }
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        "reference_data": [
          {
            "name": "20061215 Re: The (in)security of Xorg and DRI",
            "refsource": "BUGTRAQ",
            "url": "http://www.securityfocus.com/archive/1/454510/100/0/threaded"
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          {
            "name": "[Xorg] 20040613 DRI merging",
            "refsource": "MLIST",
            "url": "http://lists.freedesktop.org/archives/xorg/2004-June/000927.html"
          },
          {
            "name": "20061218 Re: The (in)security of Xorg and DRI",
            "refsource": "BUGTRAQ",
            "url": "http://www.securityfocus.com/archive/1/454706/100/0/threaded"
          },
          {
            "name": "http://www.ssi.gouv.fr/fr/sciences/fichiers/lti/cansecwest2006-duflot-paper.pdf",
            "refsource": "MISC",
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            "url": "http://www.cansecwest.com/slides06/csw06-duflot.ppt"
          },
          {
            "name": "20061214 The (in)security of Xorg and DRI",
            "refsource": "BUGTRAQ",
            "url": "http://www.securityfocus.com/archive/1/454379/100/0/threaded"
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        ]
      }
    },
    "nvd.nist.gov": {
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        "nodes": [
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                "cpe23Uri": "cpe:2.3:o:netbsd:netbsd:2.0.4:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
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        "description": {
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              "value": "OpenBSD and NetBSD permit usermode code to kill the display server and write to the X.Org /dev/xf86 device, which allows local users with root privileges to reduce securelevel by replacing the System Management Mode (SMM) handler via a write to an SMRAM address within /dev/xf86 (aka the video card memory-mapped I/O range), and then launching the new handler via a System Management Interrupt (SMI), as demonstrated by a write to Programmed I/O port 0xB2."
            }
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                {
                  "lang": "en",
                  "value": "NVD-CWE-Other"
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        "references": {
          "reference_data": [
            {
              "name": "20061215 Re: The (in)security of Xorg and DRI",
              "refsource": "BUGTRAQ",
              "tags": [],
              "url": "http://www.securityfocus.com/archive/1/454510/100/0/threaded"
            },
            {
              "name": "20061218 Re: The (in)security of Xorg and DRI",
              "refsource": "BUGTRAQ",
              "tags": [],
              "url": "http://www.securityfocus.com/archive/1/454706/100/0/threaded"
            },
            {
              "name": "[Xorg] 20040613 DRI merging",
              "refsource": "MLIST",
              "tags": [],
              "url": "http://lists.freedesktop.org/archives/xorg/2004-June/000927.html"
            },
            {
              "name": "http://www.cansecwest.com/slides06/csw06-duflot.ppt",
              "refsource": "MISC",
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            },
            {
              "name": "20061214 The (in)security of Xorg and DRI",
              "refsource": "BUGTRAQ",
              "tags": [],
              "url": "http://www.securityfocus.com/archive/1/454379/100/0/threaded"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "LOCAL",
            "authentication": "SINGLE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 6.6,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:L/AC:M/Au:S/C:C/I:C/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 2.7,
          "impactScore": 10.0,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        }
      },
      "lastModifiedDate": "2018-10-17T21:49Z",
      "publishedDate": "2006-12-26T23:28Z"
    }
  }
}


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