CVE-2014-3940 (GCVE-0-2014-3940)

Vulnerability from cvelistv5 – Published: 2014-06-05 17:00 – Updated: 2024-08-06 10:57
VLAI
Summary
The Linux kernel through 3.14.5 does not properly consider the presence of hugetlb entries, which allows local users to cause a denial of service (memory corruption or system crash) by accessing certain memory locations, as demonstrated by triggering a race condition via numa_maps read operations during hugepage migration, related to fs/proc/task_mmu.c and mm/mempolicy.c.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
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http://secunia.com/advisories/59011 third-party-advisoryx_refsource_SECUNIA
https://lkml.org/lkml/2014/3/18/784 mailing-listx_refsource_MLIST
https://support.f5.com/kb/en-us/solutions/public/… x_refsource_CONFIRM
http://rhn.redhat.com/errata/RHSA-2015-0290.html vendor-advisoryx_refsource_REDHAT
http://www.openwall.com/lists/oss-security/2014/06/02/5 mailing-listx_refsource_MLIST
http://www.securityfocus.com/bid/67786 vdb-entryx_refsource_BID
http://secunia.com/advisories/61310 third-party-advisoryx_refsource_SECUNIA
http://rhn.redhat.com/errata/RHSA-2015-1272.html vendor-advisoryx_refsource_REDHAT
Date Public
2014-03-18 00:00
Show details on NVD website
To clipboard 

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                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:3.14:rc5:*:*:*:*:*:*",
                    "matchCriteriaId": "61A7DB5C-EB54-4D4A-AB38-8060F13C8779",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:3.14:rc6:*:*:*:*:*:*",
                    "matchCriteriaId": "4FF2C86B-7087-4EFC-A256-3AF313C25325",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:3.14:rc7:*:*:*:*:*:*",
                    "matchCriteriaId": "14AC6A73-D01C-44F4-9821-BAE9600E72D5",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:3.14:rc8:*:*:*:*:*:*",
                    "matchCriteriaId": "055557BE-1FE9-45F5-8A95-F8D3C9B031E4",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:3.14.1:*:*:*:*:*:*:*",
                    "matchCriteriaId": "742641DA-1CAE-4156-95F3-367793713696",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:3.14.2:*:*:*:*:*:*:*",
                    "matchCriteriaId": "A3EBDD96-92E4-429F-A697-14364CF68EEC",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:3.14.3:*:*:*:*:*:*:*",
                    "matchCriteriaId": "998AC0EF-FC56-4F8F-B9B2-1A45C80C2231",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:3.14.4:*:*:*:*:*:*:*",
                    "matchCriteriaId": "DF6C7930-913B-4B82-BF14-CD9A0E8A968F",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The Linux kernel through 3.14.5 does not properly consider the presence of hugetlb entries, which allows local users to cause a denial of service (memory corruption or system crash) by accessing certain memory locations, as demonstrated by triggering a race condition via numa_maps read operations during hugepage migration, related to fs/proc/task_mmu.c and mm/mempolicy.c."
          },
          {
            "lang": "es",
            "value": "El kernel de Linux hasta 3.14.5 no considera debidamente la presencia de entradas hugetlb, lo que permite a usuarios locales causar una denegaci\u00f3n de servicio (corrupci\u00f3n de memoria o ca\u00edda de sistema) mediante el acceso a ciertas localizaciones de memoria, tal y como fue demostrado mediante el aprovechamiento de una condici\u00f3n de carrera a trav\u00e9s de operaciones de lectura numa_maps durante la migraci\u00f3n a hugepage, relacionado con fs/proc/task_mmu.c y mm/mempolicy.c."
          }
        ],
        "id": "CVE-2014-3940",
        "lastModified": "2026-05-06T22:30:45.220",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "HIGH",
                "accessVector": "LOCAL",
                "authentication": "NONE",
                "availabilityImpact": "COMPLETE",
                "baseScore": 4.0,
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "vectorString": "AV:L/AC:H/Au:N/C:N/I:N/A:C",
                "version": "2.0"
              },
              "exploitabilityScore": 1.9,
              "impactScore": 6.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ]
        },
        "published": "2014-06-05T17:55:07.573",
        "references": [
          {
            "source": "cve@mitre.org",
            "url": "http://rhn.redhat.com/errata/RHSA-2015-0290.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://rhn.redhat.com/errata/RHSA-2015-1272.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://secunia.com/advisories/59011"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://secunia.com/advisories/61310"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.openwall.com/lists/oss-security/2014/06/02/5"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.securityfocus.com/bid/67786"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1104097"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lkml.org/lkml/2014/3/18/784"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://support.f5.com/kb/en-us/solutions/public/15000/600/sol15685.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://rhn.redhat.com/errata/RHSA-2015-0290.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://rhn.redhat.com/errata/RHSA-2015-1272.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/59011"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/61310"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.openwall.com/lists/oss-security/2014/06/02/5"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.securityfocus.com/bid/67786"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1104097"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lkml.org/lkml/2014/3/18/784"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://support.f5.com/kb/en-us/solutions/public/15000/600/sol15685.html"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-362"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T12:31:56+00:00",
      "cve": "CVE-2014-3940",
      "id": "CVE-2014-3940",
      "initial_release_date": "2014-03-18T00:00:00+00:00",
      "product_status:fixed": "872",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Kernel: missing check during hugepage migration",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2014/cve-2014-3940.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "low",
      "current_release_date": "2026-09-02T09:01:29Z",
      "cve": "CVE-2014-3940",
      "id": "CVE-2014-3940",
      "initial_release_date": "2023-02-15T05:28:13Z",
      "product_status:recommended": "100",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2014-3940",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2014-3940.json",
      "version": "11"
    }
  }
}



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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.



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.