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FKIE_CVE-2009-2768

Vulnerability from fkie_nvd - Published: 2009-08-14 15:16 - Updated: 2026-06-16 23:10
Summary
The load_flat_shared_library function in fs/binfmt_flat.c in the flat subsystem in the Linux kernel before 2.6.31-rc6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by executing a shared flat binary, which triggers an access of an "uninitialized cred pointer."
References
cve@mitre.orghttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3440625d78711bee41a84cf29c3d8c579b522666Broken Link
cve@mitre.orghttp://lkml.org/lkml/2009/6/22/91Mailing List, Patch, Third Party Advisory
cve@mitre.orghttp://secunia.com/advisories/36278Broken Link
cve@mitre.orghttp://thread.gmane.org/gmane.linux.hardware.blackfin.kernel.devel/1905Broken Link
cve@mitre.orghttp://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.5Broken Link
cve@mitre.orghttp://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc6Broken Link
cve@mitre.orghttp://www.mandriva.com/security/advisories?name=MDVSA-2011:051Broken Link
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2009/08/13/1Mailing List, Patch, Third Party Advisory
cve@mitre.orghttp://www.securityfocus.com/bid/36037Broken Link, Third Party Advisory, VDB Entry
cve@mitre.orghttps://exchange.xforce.ibmcloud.com/vulnerabilities/52909Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3440625d78711bee41a84cf29c3d8c579b522666Broken Link
af854a3a-2127-422b-91ae-364da2661108http://lkml.org/lkml/2009/6/22/91Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/36278Broken Link
af854a3a-2127-422b-91ae-364da2661108http://thread.gmane.org/gmane.linux.hardware.blackfin.kernel.devel/1905Broken Link
af854a3a-2127-422b-91ae-364da2661108http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.5Broken Link
af854a3a-2127-422b-91ae-364da2661108http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc6Broken Link
af854a3a-2127-422b-91ae-364da2661108http://www.mandriva.com/security/advisories?name=MDVSA-2011:051Broken Link
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2009/08/13/1Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/36037Broken Link, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/52909Third Party Advisory, VDB Entry
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 2.6.31
linux linux_kernel 2.6.31
linux linux_kernel 2.6.31
linux linux_kernel 2.6.31
linux linux_kernel 2.6.31

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "AE1BA972-91FE-417F-B0AD-D3067DA8C96F",
              "versionEndExcluding": "2.6.31",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.31:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "29C4A364-ED36-4AC8-AD1E-8BD18DD9324D",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.31:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "4049867A-E3B2-4DC1-8966-0477E6A5D582",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.31:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "A2507858-675B-4DA2-A49E-00DB54700CF3",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.31:rc4:*:*:*:*:*:*",
              "matchCriteriaId": "0A25EA55-3F1C-440C-A383-0BB9556C9508",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.31:rc5:*:*:*:*:*:*",
              "matchCriteriaId": "B2665356-4EF5-4543-AD15-67FDB851DCCD",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The load_flat_shared_library function in fs/binfmt_flat.c in the flat subsystem in the Linux kernel before 2.6.31-rc6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by executing a shared flat binary, which triggers an access of an \"uninitialized cred pointer.\""
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n load_flat_shared_library en el archivo fs/binfmt_flat.c en el subsistema flat en el kernel de Linux anterior a versi\u00f3n 2.6.31-rc6, permite a los usuarios locales causar una denegaci\u00f3n de servicio (desreferencia de un puntero NULL y bloqueo del sistema) o posiblemente tener otro impacto no especificado mediante la ejecuci\u00f3n de un binario flat compartido, que activa el acceso de un \"uninitialized cred pointer.\""
    }
  ],
  "id": "CVE-2009-2768",
  "lastModified": "2026-06-16T23:10:10.957",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.2,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2009-08-14T15:16:27.657",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Broken Link"
      ],
      "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3440625d78711bee41a84cf29c3d8c579b522666"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "http://lkml.org/lkml/2009/6/22/91"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Broken Link"
      ],
      "url": "http://secunia.com/advisories/36278"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Broken Link"
      ],
      "url": "http://thread.gmane.org/gmane.linux.hardware.blackfin.kernel.devel/1905"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Broken Link"
      ],
      "url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.5"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Broken Link"
      ],
      "url": "http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc6"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Broken Link"
      ],
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:051"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2009/08/13/1"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Broken Link",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/36037"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/52909"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link"
      ],
      "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3440625d78711bee41a84cf29c3d8c579b522666"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "http://lkml.org/lkml/2009/6/22/91"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link"
      ],
      "url": "http://secunia.com/advisories/36278"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link"
      ],
      "url": "http://thread.gmane.org/gmane.linux.hardware.blackfin.kernel.devel/1905"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link"
      ],
      "url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.5"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link"
      ],
      "url": "http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc6"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link"
      ],
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:051"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2009/08/13/1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/36037"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/52909"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vendorComments": [
    {
      "comment": "Not vulnerable. This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 3, 4, 5 or Red Hat Enterprise MRG. Red Hat does not provide support for flat binary support, and additionally this issue only affected kernels version 2.6.29-rc1 and later.",
      "lastModified": "2009-08-18T00:00:00",
      "organization": "Red Hat"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        },
        {
          "lang": "en",
          "value": "CWE-824"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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