FKIE_CVE-2009-2793

Vulnerability from fkie_nvd - Published: 2009-09-18 22:30 - Updated: 2026-04-23 00:35
Severity ?
Summary
The kernel in NetBSD, probably 5.0.1 and earlier, on x86 platforms does not properly handle a pre-commit failure of the iret instruction, which might allow local users to gain privileges via vectors related to a tempEIP pseudocode variable that is outside of the code-segment limits.
References
cve@mitre.orghttp://www.securityfocus.com/archive/1/506531/100/0/threaded
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/506531/100/0/threaded
Impacted products
Vendor Product Version
netbsd netbsd *
netbsd netbsd 0.8
netbsd netbsd 0.9
netbsd netbsd 1.0
netbsd netbsd 1.1
netbsd netbsd 1.2
netbsd netbsd 1.2.1
netbsd netbsd 1.3
netbsd netbsd 1.3.1
netbsd netbsd 1.3.2
netbsd netbsd 1.3.3
netbsd netbsd 1.5
netbsd netbsd 1.5.1
netbsd netbsd 1.5.2
netbsd netbsd 1.5.3
netbsd netbsd 1.6
netbsd netbsd 1.6.1
netbsd netbsd 1.6.2
netbsd netbsd 2.0
netbsd netbsd 2.0.1
netbsd netbsd 2.0.2
netbsd netbsd 2.0.3
netbsd netbsd 2.1
netbsd netbsd 3.0
netbsd netbsd 3.0.1
netbsd netbsd 3.0.2
netbsd netbsd 3.1
netbsd netbsd 4.0
netbsd netbsd 4.0.1
netbsd netbsd 5.0
To clipboard 

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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The kernel in NetBSD, probably 5.0.1 and earlier, on x86 platforms does not properly handle a pre-commit failure of the iret instruction, which might allow local users to gain privileges via vectors related to a tempEIP pseudocode variable that is outside of the code-segment limits."
    },
    {
      "lang": "es",
      "value": "El kernel en NetBSD, posiblemente 5.0.1 y anteriores, en plataformas x86 no gestiona adecuadamente el fallo de preasignaci\u00f3n de la instrucci\u00f3n \"iret\", lo que permitir\u00eda a usuarios locales conseguir privilegios a trav\u00e9s de vectores relacionados con la variable de pseudoc\u00f3digo tempEIP que esta fuera de los limites de segmento de c\u00f3digo."
    }
  ],
  "id": "CVE-2009-2793",
  "lastModified": "2026-04-23T00:35:47.467",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.6,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": true,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2009-09-18T22:30:00.530",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://www.securityfocus.com/archive/1/506531/100/0/threaded"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/archive/1/506531/100/0/threaded"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-264"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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