GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2011-4110 (GCVE-0-2011-4110)

Vulnerability from cvelistv5 – Published: 2012-01-27 15:00 – Updated: 2024-08-07 00:01
VLAI
Summary
The user_update function in security/keys/user_defined.c in the Linux kernel 2.6 allows local users to cause a denial of service (NULL pointer dereference and kernel oops) via vectors related to a user-defined key and "updating a negative key into a fully instantiated key."
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
https://lkml.org/lkml/2011/11/15/363 mailing-listx_refsource_MLIST
http://www.securityfocus.com/bid/50755 vdb-entryx_refsource_BID
http://www.ubuntu.com/usn/USN-1328-1 vendor-advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-1344-1 vendor-advisoryx_refsource_UBUNTU
http://www.openwall.com/lists/oss-security/2011/11/22/5 mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2011/1… mailing-listx_refsource_MLIST
http://www.ubuntu.com/usn/USN-1324-1 vendor-advisoryx_refsource_UBUNTU
https://bugzilla.redhat.com/show_bug.cgi?id=751297 x_refsource_CONFIRM
http://secunia.com/advisories/47754 third-party-advisoryx_refsource_SECUNIA
http://www.openwall.com/lists/oss-security/2011/11/22/6 mailing-listx_refsource_MLIST
http://marc.info/?l=bugtraq&m=139447903326211&w=2 vendor-advisoryx_refsource_HP
Date Public
2011-11-15 00:00
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-07T00:01:50.409Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "[linux-kernel] 20111115 [PATCH] KEYS: Fix a NULL pointer deref in the user-defined key type",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lkml.org/lkml/2011/11/15/363"
          },
          {
            "name": "50755",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/50755"
          },
          {
            "name": "USN-1328-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-1328-1"
          },
          {
            "name": "USN-1344-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-1344-1"
          },
          {
            "name": "[oss-security] 20111122 Re: CVE-2011-4110 kernel: keys: NULL pointer deref in the user-defined key type",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2011/11/22/5"
          },
          {
            "name": "[oss-security] 20111121 CVE-2011-4110 kernel: keys: NULL pointer deref in the user-defined key type",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2011/11/21/19"
          },
          {
            "name": "USN-1324-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-1324-1"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=751297"
          },
          {
            "name": "47754",
            "tags": [
              "third-party-advisory",
              "x_refsource_SECUNIA",
              "x_transferred"
            ],
            "url": "http://secunia.com/advisories/47754"
          },
          {
            "name": "[oss-security] 20111121 Re: CVE-2011-4110 kernel: keys: NULL pointer deref in the user-defined key type",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2011/11/22/6"
          },
          {
            "name": "HPSBGN02970",
            "tags": [
              "vendor-advisory",
              "x_refsource_HP",
              "x_transferred"
            ],
            "url": "http://marc.info/?l=bugtraq\u0026m=139447903326211\u0026w=2"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2011-11-15T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The user_update function in security/keys/user_defined.c in the Linux kernel 2.6 allows local users to cause a denial of service (NULL pointer dereference and kernel oops) via vectors related to a user-defined key and \"updating a negative key into a fully instantiated key.\""
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2016-08-19T15:57:01.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "[linux-kernel] 20111115 [PATCH] KEYS: Fix a NULL pointer deref in the user-defined key type",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lkml.org/lkml/2011/11/15/363"
        },
        {
          "name": "50755",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/50755"
        },
        {
          "name": "USN-1328-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-1328-1"
        },
        {
          "name": "USN-1344-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-1344-1"
        },
        {
          "name": "[oss-security] 20111122 Re: CVE-2011-4110 kernel: keys: NULL pointer deref in the user-defined key type",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2011/11/22/5"
        },
        {
          "name": "[oss-security] 20111121 CVE-2011-4110 kernel: keys: NULL pointer deref in the user-defined key type",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2011/11/21/19"
        },
        {
          "name": "USN-1324-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-1324-1"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=751297"
        },
        {
          "name": "47754",
          "tags": [
            "third-party-advisory",
            "x_refsource_SECUNIA"
          ],
          "url": "http://secunia.com/advisories/47754"
        },
        {
          "name": "[oss-security] 20111121 Re: CVE-2011-4110 kernel: keys: NULL pointer deref in the user-defined key type",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2011/11/22/6"
        },
        {
          "name": "HPSBGN02970",
          "tags": [
            "vendor-advisory",
            "x_refsource_HP"
          ],
          "url": "http://marc.info/?l=bugtraq\u0026m=139447903326211\u0026w=2"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2011-4110",
    "datePublished": "2012-01-27T15:00:00.000Z",
    "dateReserved": "2011-10-18T00:00:00.000Z",
    "dateUpdated": "2024-08-07T00:01:50.409Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2011-4110",
      "date": "2026-09-19",
      "epss": "0.00471",
      "percentile": "0.3987"
    },
    "fkie_nvd": {
      "configurations": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:2.6:*:*:*:*:*:*:*",
                  "matchCriteriaId": "0FC560CC-F785-42D5-A25B-1BA02E7AC464",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The user_update function in security/keys/user_defined.c in the Linux kernel 2.6 allows local users to cause a denial of service (NULL pointer dereference and kernel oops) via vectors related to a user-defined key and \"updating a negative key into a fully instantiated key.\""
        },
        {
          "lang": "es",
          "value": "La funci\u00f3n user_update security/keys/user_defined.c en el kernel de Linux v2.6 permite a usuarios locales provocar una denegaci\u00f3n de servicio (desreferencia de puntero a NULL y fallo del kernel) a trav\u00e9s de vectores relacionados con una clave definida por el usuario y la \"actualizaci\u00f3n de una clave negativa en una clave completamente instanciada\"."
        }
      ],
      "id": "CVE-2011-4110",
      "lastModified": "2024-11-21T01:31:52.040",
      "metrics": {
        "cvssMetricV2": [
          {
            "acInsufInfo": false,
            "baseSeverity": "LOW",
            "cvssData": {
              "accessComplexity": "LOW",
              "accessVector": "LOCAL",
              "authentication": "NONE",
              "availabilityImpact": "PARTIAL",
              "baseScore": 2.1,
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
              "version": "2.0"
            },
            "exploitabilityScore": 3.9,
            "impactScore": 2.9,
            "obtainAllPrivilege": false,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "source": "nvd@nist.gov",
            "type": "Primary",
            "userInteractionRequired": false
          }
        ]
      },
      "published": "2012-01-27T15:55:04.360",
      "references": [
        {
          "source": "secalert@redhat.com",
          "url": "http://marc.info/?l=bugtraq\u0026m=139447903326211\u0026w=2"
        },
        {
          "source": "secalert@redhat.com",
          "url": "http://secunia.com/advisories/47754"
        },
        {
          "source": "secalert@redhat.com",
          "url": "http://www.openwall.com/lists/oss-security/2011/11/21/19"
        },
        {
          "source": "secalert@redhat.com",
          "url": "http://www.openwall.com/lists/oss-security/2011/11/22/5"
        },
        {
          "source": "secalert@redhat.com",
          "url": "http://www.openwall.com/lists/oss-security/2011/11/22/6"
        },
        {
          "source": "secalert@redhat.com",
          "url": "http://www.securityfocus.com/bid/50755"
        },
        {
          "source": "secalert@redhat.com",
          "url": "http://www.ubuntu.com/usn/USN-1324-1"
        },
        {
          "source": "secalert@redhat.com",
          "url": "http://www.ubuntu.com/usn/USN-1328-1"
        },
        {
          "source": "secalert@redhat.com",
          "url": "http://www.ubuntu.com/usn/USN-1344-1"
        },
        {
          "source": "secalert@redhat.com",
          "tags": [
            "Patch"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=751297"
        },
        {
          "source": "secalert@redhat.com",
          "tags": [
            "Exploit"
          ],
          "url": "https://lkml.org/lkml/2011/11/15/363"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://marc.info/?l=bugtraq\u0026m=139447903326211\u0026w=2"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://secunia.com/advisories/47754"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://www.openwall.com/lists/oss-security/2011/11/21/19"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://www.openwall.com/lists/oss-security/2011/11/22/5"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://www.openwall.com/lists/oss-security/2011/11/22/6"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://www.securityfocus.com/bid/50755"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://www.ubuntu.com/usn/USN-1324-1"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://www.ubuntu.com/usn/USN-1328-1"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://www.ubuntu.com/usn/USN-1344-1"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=751297"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Exploit"
          ],
          "url": "https://lkml.org/lkml/2011/11/15/363"
        }
      ],
      "sourceIdentifier": "secalert@redhat.com",
      "vulnStatus": "Modified",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-264"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:2.6:*:*:*:*:*:*:*",
                    "matchCriteriaId": "0FC560CC-F785-42D5-A25B-1BA02E7AC464",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The user_update function in security/keys/user_defined.c in the Linux kernel 2.6 allows local users to cause a denial of service (NULL pointer dereference and kernel oops) via vectors related to a user-defined key and \"updating a negative key into a fully instantiated key.\""
          },
          {
            "lang": "es",
            "value": "La funci\u00f3n user_update security/keys/user_defined.c en el kernel de Linux v2.6 permite a usuarios locales provocar una denegaci\u00f3n de servicio (desreferencia de puntero a NULL y fallo del kernel) a trav\u00e9s de vectores relacionados con una clave definida por el usuario y la \"actualizaci\u00f3n de una clave negativa en una clave completamente instanciada\"."
          }
        ],
        "id": "CVE-2011-4110",
        "lastModified": "2026-04-29T01:13:23.040",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "LOW",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "LOCAL",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 2.1,
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
                "version": "2.0"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ]
        },
        "published": "2012-01-27T15:55:04.360",
        "references": [
          {
            "source": "secalert@redhat.com",
            "url": "http://marc.info/?l=bugtraq\u0026m=139447903326211\u0026w=2"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://secunia.com/advisories/47754"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.openwall.com/lists/oss-security/2011/11/21/19"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.openwall.com/lists/oss-security/2011/11/22/5"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.openwall.com/lists/oss-security/2011/11/22/6"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.securityfocus.com/bid/50755"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.ubuntu.com/usn/USN-1324-1"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.ubuntu.com/usn/USN-1328-1"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.ubuntu.com/usn/USN-1344-1"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Patch"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=751297"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Exploit"
            ],
            "url": "https://lkml.org/lkml/2011/11/15/363"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://marc.info/?l=bugtraq\u0026m=139447903326211\u0026w=2"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/47754"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.openwall.com/lists/oss-security/2011/11/21/19"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.openwall.com/lists/oss-security/2011/11/22/5"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.openwall.com/lists/oss-security/2011/11/22/6"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.securityfocus.com/bid/50755"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.ubuntu.com/usn/USN-1324-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.ubuntu.com/usn/USN-1328-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.ubuntu.com/usn/USN-1344-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=751297"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Exploit"
            ],
            "url": "https://lkml.org/lkml/2011/11/15/363"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-264"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T12:54:20+00:00",
      "cve": "CVE-2011-4110",
      "id": "CVE-2011-4110",
      "initial_release_date": "2011-11-15T00:00:00+00:00",
      "product_status:fixed": "609",
      "product_status:known_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: keys: NULL pointer deref in the user-defined key type",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2011/cve-2011-4110.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-04T01:12:57Z",
      "cve": "CVE-2011-4110",
      "id": "CVE-2011-4110",
      "initial_release_date": "2023-02-15T05:50:10Z",
      "product_status:known_not_affected": "537",
      "product_status:recommended": "48",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2011-4110",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2011-4110.json",
      "version": "19"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.


Detection rules are retrieved from Rulezet.


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.