FKIE_CVE-2011-2695

Vulnerability from fkie_nvd - Published: 2011-07-28 22:55 - Updated: 2026-06-16 23:31
Severity
Summary
Multiple off-by-one errors in the ext4 subsystem in the Linux kernel before 3.0-rc5 allow local users to cause a denial of service (BUG_ON and system crash) by accessing a sparse file in extent format with a write operation involving a block number corresponding to the largest possible 32-bit unsigned integer.
References
secalert@redhat.comhttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f17722f917b2f21497deb6edc62fb1683daa08e6
secalert@redhat.comhttp://secunia.com/advisories/45193Third Party Advisory
secalert@redhat.comhttp://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.0-rc5Broken Link
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2011/07/15/7Mailing List, Third Party Advisory
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2011/07/15/8Mailing List, Third Party Advisory
secalert@redhat.comhttp://www.spinics.net/lists/linux-ext4/msg25697.htmlExploit, Patch, Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=722557Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f17722f917b2f21497deb6edc62fb1683daa08e6
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/45193Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.0-rc5Broken Link
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2011/07/15/7Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2011/07/15/8Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.spinics.net/lists/linux-ext4/msg25697.htmlExploit, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=722557Issue Tracking, Patch, Third Party Advisory
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 3.0
linux linux_kernel 3.0
linux linux_kernel 3.0
linux linux_kernel 3.0
linux linux_kernel 3.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E0135A6D-9FB7-4E1B-B471-914E37494942",
              "versionEndExcluding": "3.0",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "2E4912EC-CC92-41CA-A2DA-027291975A84",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "D30AEC07-3CBD-4F4F-9646-BEAA1D98750B",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:3.0:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "C2AA8E68-691B-499C-AEDD-3C0BFFE70044",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:3.0:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "9440475B-5960-4066-A204-F30AAFC87846",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:3.0:rc4:*:*:*:*:*:*",
              "matchCriteriaId": "53BCFBFB-6AF0-4525-8623-7633CC5E17DB",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Multiple off-by-one errors in the ext4 subsystem in the Linux kernel before 3.0-rc5 allow local users to cause a denial of service (BUG_ON and system crash) by accessing a sparse file in extent format with a write operation involving a block number corresponding to the largest possible 32-bit unsigned integer."
    },
    {
      "lang": "es",
      "value": "M\u00faltiples errores off-by-one en el subsistema de ext4 en el kernel de Linux antes de v3.0-rc5, permite a usuarios locales provocar una denegaci\u00f3n de servicio (BUG_ON y ca\u00edda del sistema) por acceder a un archivo disperso en el formato de medida con una operaci\u00f3n de escritura con un n\u00famero de bloque correspondiente al mayor n\u00famero posible de un entero de 32 bits sin signo."
    }
  ],
  "id": "CVE-2011-2695",
  "lastModified": "2026-06-16T23:31:48.963",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "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,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2011-07-28T22:55:02.657",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f17722f917b2f21497deb6edc62fb1683daa08e6"
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    },
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    },
    {
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      "url": "http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.0-rc5"
    },
    {
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      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=722557"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-193"
        }
      ],
      "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

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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.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • 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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.