FKIE_CVE-2011-2928

Vulnerability from fkie_nvd - Published: 2011-08-29 17:55 - Updated: 2026-06-16 23:32
Severity
Summary
The befs_follow_link function in fs/befs/linuxvfs.c in the Linux kernel before 3.1-rc3 does not validate the length attribute of long symlinks, which allows local users to cause a denial of service (incorrect pointer dereference and OOPS) by accessing a long symlink on a malformed Be filesystem.
References
secalert@redhat.comhttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=338d0f0a6fbc82407864606f5b64b75aeb3c70f2
secalert@redhat.comhttp://securityreason.com/securityalert/8360Exploit, Third Party Advisory
secalert@redhat.comhttp://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.1-rc3Broken Link
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2011/08/19/1Exploit, Mailing List, Patch, Third Party Advisory
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2011/08/19/5Exploit, Mailing List, Patch, Third Party Advisory
secalert@redhat.comhttp://www.pre-cert.de/advisories/PRE-SA-2011-06.txtExploit, Third Party Advisory
secalert@redhat.comhttp://www.securityfocus.com/archive/1/519387/100/0/threadedExploit, Third Party Advisory, VDB Entry
secalert@redhat.comhttp://www.securityfocus.com/bid/49256Third Party Advisory, VDB Entry
secalert@redhat.comhttps://exchange.xforce.ibmcloud.com/vulnerabilities/69343Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=338d0f0a6fbc82407864606f5b64b75aeb3c70f2
af854a3a-2127-422b-91ae-364da2661108http://securityreason.com/securityalert/8360Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.1-rc3Broken Link
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2011/08/19/1Exploit, Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2011/08/19/5Exploit, Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.pre-cert.de/advisories/PRE-SA-2011-06.txtExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/519387/100/0/threadedExploit, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/49256Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/69343Third Party Advisory, VDB Entry
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 3.1
linux linux_kernel 3.1
linux linux_kernel 3.1
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": "156989A4-23D9-434A-B512-9C0F3583D13D",
              "versionEndExcluding": "3.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:3.1:-:*:*:*:*:*:*",
              "matchCriteriaId": "98093688-6D93-4911-8D48-AC4A4619BCED",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:3.1:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "13BBD2A3-AE10-48B9-8776-4FB1CAC37D44",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:3.1:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "B25680CC-8918-4F27-8D7E-A6579215450B",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The befs_follow_link function in fs/befs/linuxvfs.c in the Linux kernel before 3.1-rc3 does not validate the length attribute of long symlinks, which allows local users to cause a denial of service (incorrect pointer dereference and OOPS) by accessing a long symlink on a malformed Be filesystem."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n befs_follow_link en fs/befs/linuxvfs.c en el Kernel de Linux anterior a v 3.1-rc3 no valida el atributo longitud de enlaces simb\u00f3licos, lo que permite a usuarios locales provocar una denegaci\u00f3n de servicio (desreferencia a puntero incorrecta y OOPS) accediendo a un largo enlace simb\u00f3lico en un fichero de sistema mal formados."
    }
  ],
  "id": "CVE-2011-2928",
  "lastModified": "2026-06-16T23:32:16.140",
  "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": "2011-08-29T17:55:00.830",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=338d0f0a6fbc82407864606f5b64b75aeb3c70f2"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "http://securityreason.com/securityalert/8360"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Broken Link"
      ],
      "url": "http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.1-rc3"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Exploit",
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2011/08/19/1"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Exploit",
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2011/08/19/5"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "http://www.pre-cert.de/advisories/PRE-SA-2011-06.txt"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/archive/1/519387/100/0/threaded"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/49256"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/69343"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=338d0f0a6fbc82407864606f5b64b75aeb3c70f2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "http://securityreason.com/securityalert/8360"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link"
      ],
      "url": "http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.1-rc3"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2011/08/19/1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2011/08/19/5"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "http://www.pre-cert.de/advisories/PRE-SA-2011-06.txt"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/archive/1/519387/100/0/threaded"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/49256"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/69343"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Sightings

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Nomenclature

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