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FKIE_CVE-2006-1856

Vulnerability from fkie_nvd - Published: 2006-05-19 23:02 - Updated: 2026-06-16 22:23
Severity
Summary
Certain modifications to the Linux kernel 2.6.16 and earlier do not add the appropriate Linux Security Modules (LSM) file_permission hooks to the (1) readv and (2) writev functions, which might allow attackers to bypass intended access restrictions.
References
secalert@redhat.comhttp://lists.jammed.com/linux-security-module/2005/09/0019.html
secalert@redhat.comhttp://secunia.com/advisories/20237
secalert@redhat.comhttp://secunia.com/advisories/20716
secalert@redhat.comhttp://secunia.com/advisories/21045
secalert@redhat.comhttp://secunia.com/advisories/21745
secalert@redhat.comhttp://secunia.com/advisories/22093
secalert@redhat.comhttp://support.avaya.com/elmodocs2/security/ASA-2006-161.htm
secalert@redhat.comhttp://www.debian.org/security/2006/dsa-1184
secalert@redhat.comhttp://www.mandriva.com/security/advisories?name=MDKSA-2006:123
secalert@redhat.comhttp://www.osvdb.org/25747
secalert@redhat.comhttp://www.redhat.com/support/errata/RHSA-2006-0493.html
secalert@redhat.comhttp://www.securityfocus.com/bid/18105
secalert@redhat.comhttp://www.ubuntu.com/usn/usn-302-1
secalert@redhat.comhttp://www.ussg.iu.edu/hypermail/linux/kernel/0604.3/0777.html
secalert@redhat.comhttps://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=191524
secalert@redhat.comhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9927
af854a3a-2127-422b-91ae-364da2661108http://lists.jammed.com/linux-security-module/2005/09/0019.html
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/20237
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/20716
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/21045
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/21745
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/22093
af854a3a-2127-422b-91ae-364da2661108http://support.avaya.com/elmodocs2/security/ASA-2006-161.htm
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2006/dsa-1184
af854a3a-2127-422b-91ae-364da2661108http://www.mandriva.com/security/advisories?name=MDKSA-2006:123
af854a3a-2127-422b-91ae-364da2661108http://www.osvdb.org/25747
af854a3a-2127-422b-91ae-364da2661108http://www.redhat.com/support/errata/RHSA-2006-0493.html
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/18105
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/usn-302-1
af854a3a-2127-422b-91ae-364da2661108http://www.ussg.iu.edu/hypermail/linux/kernel/0604.3/0777.html
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=191524
af854a3a-2127-422b-91ae-364da2661108https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9927
Impacted products
Vendor Product Version
linux linux_kernel 2.6.0
linux linux_kernel 2.6.0
linux linux_kernel 2.6.0
linux linux_kernel 2.6.0
linux linux_kernel 2.6.0
linux linux_kernel 2.6.0
linux linux_kernel 2.6.0
linux linux_kernel 2.6.0
linux linux_kernel 2.6.0
linux linux_kernel 2.6.0
linux linux_kernel 2.6.0
linux linux_kernel 2.6.0
linux linux_kernel 2.6.1
linux linux_kernel 2.6.1
linux linux_kernel 2.6.1
linux linux_kernel 2.6.2
linux linux_kernel 2.6.3
linux linux_kernel 2.6.4
linux linux_kernel 2.6.5
linux linux_kernel 2.6.6
linux linux_kernel 2.6.6
linux linux_kernel 2.6.7
linux linux_kernel 2.6.7
linux linux_kernel 2.6.8
linux linux_kernel 2.6.8
linux linux_kernel 2.6.8
linux linux_kernel 2.6.8
linux linux_kernel 2.6.9
linux linux_kernel 2.6.10
linux linux_kernel 2.6.10
linux linux_kernel 2.6.11
linux linux_kernel 2.6.11
linux linux_kernel 2.6.11
linux linux_kernel 2.6.11
linux linux_kernel 2.6.11.5
linux linux_kernel 2.6.11.6
linux linux_kernel 2.6.11.7
linux linux_kernel 2.6.11.8
linux linux_kernel 2.6.11.11
linux linux_kernel 2.6.11.12
linux linux_kernel 2.6.12
linux linux_kernel 2.6.12
linux linux_kernel 2.6.12
linux linux_kernel 2.6.12.1
linux linux_kernel 2.6.12.2
linux linux_kernel 2.6.12.3
linux linux_kernel 2.6.12.4
linux linux_kernel 2.6.12.5
linux linux_kernel 2.6.12.6
linux linux_kernel 2.6.13
linux linux_kernel 2.6.13
linux linux_kernel 2.6.13
linux linux_kernel 2.6.13
linux linux_kernel 2.6.13
linux linux_kernel 2.6.13.1
linux linux_kernel 2.6.13.2
linux linux_kernel 2.6.13.3
linux linux_kernel 2.6.13.4
linux linux_kernel 2.6.14
linux linux_kernel 2.6.14
linux linux_kernel 2.6.14
linux linux_kernel 2.6.14
linux linux_kernel 2.6.14
linux linux_kernel 2.6.14.1
linux linux_kernel 2.6.14.2
linux linux_kernel 2.6.14.3
linux linux_kernel 2.6.14.4
linux linux_kernel 2.6.14.5
linux linux_kernel 2.6.15
linux linux_kernel 2.6.15
linux linux_kernel 2.6.15
linux linux_kernel 2.6.15.1
linux linux_kernel 2.6.15.2
linux linux_kernel 2.6.15.3
linux linux_kernel 2.6.15.4
linux linux_kernel 2.6.15.5
linux linux_kernel 2.6.16
linux linux_kernel 2.6_test9_cvs

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            },
            {
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              "matchCriteriaId": "0FB5CF04-B5B6-4DFB-B051-61EDA257019F",
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              "matchCriteriaId": "7616E197-ACCA-4191-A513-FD48417C7F88",
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            {
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              "matchCriteriaId": "ED1AA7FC-F5B9-406C-ABE4-0BE5E9889619",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.16:*:*:*:*:*:*:*",
              "matchCriteriaId": "34E60197-56C3-485C-9609-B1C4A0E0FCB2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:2.6_test9_cvs:*:*:*:*:*:*:*",
              "matchCriteriaId": "608FDE1E-B02A-45A2-8877-0E52A5BD0963",
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          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Certain modifications to the Linux kernel 2.6.16 and earlier do not add the appropriate Linux Security Modules (LSM) file_permission hooks to the (1) readv and (2) writev functions, which might allow attackers to bypass intended access restrictions."
    }
  ],
  "id": "CVE-2006-1856",
  "lastModified": "2026-06-16T22:23:48.597",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": true,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2006-05-19T23:02:00.000",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "http://lists.jammed.com/linux-security-module/2005/09/0019.html"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://secunia.com/advisories/20237"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://secunia.com/advisories/20716"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://secunia.com/advisories/21045"
    },
    {
      "source": "secalert@redhat.com",
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    },
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    {
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      "url": "http://support.avaya.com/elmodocs2/security/ASA-2006-161.htm"
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      "url": "http://www.debian.org/security/2006/dsa-1184"
    },
    {
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      "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2006:123"
    },
    {
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      "url": "http://www.osvdb.org/25747"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.redhat.com/support/errata/RHSA-2006-0493.html"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.securityfocus.com/bid/18105"
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      "source": "secalert@redhat.com",
      "url": "http://www.ubuntu.com/usn/usn-302-1"
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    {
      "source": "secalert@redhat.com",
      "url": "http://www.ussg.iu.edu/hypermail/linux/kernel/0604.3/0777.html"
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      "url": "https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=191524"
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      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9927"
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
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      "url": "http://secunia.com/advisories/20716"
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://secunia.com/advisories/21045"
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    {
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      "url": "http://secunia.com/advisories/21745"
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      "url": "http://secunia.com/advisories/22093"
    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://support.avaya.com/elmodocs2/security/ASA-2006-161.htm"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.debian.org/security/2006/dsa-1184"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2006:123"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.osvdb.org/25747"
    },
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      "url": "http://www.ussg.iu.edu/hypermail/linux/kernel/0604.3/0777.html"
    },
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      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9927"
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  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "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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Detection rules are retrieved from Rulezet.

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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.


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