{
  "id": "CVE-2015-4170",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2016-05-02T10:59:12.623",
  "lastModified": "2024-11-21T02:30:33.780",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Race condition in the ldsem_cmpxchg function in drivers/tty/tty_ldsem.c in the Linux kernel before 3.13-rc4-next-20131218 allows local users to cause a denial of service (ldsem_down_read and ldsem_down_write deadlock) by establishing a new tty thread during shutdown of a previous tty thread."
    },
    {
      "lang": "es",
      "value": "Condici\u00f3n de carrera en la funci\u00f3n ldsem_cmpxchg en drivers/tty/tty_ldsem.c en el kernel de Linux en versiones anteriores a 3.13-rc4-next-20131218 permite a usuarios locales provocar una denegaci\u00f3n de servicio (interbloqueo de ldsem_down_read y ldsem_down_write) estableciendo un nuevo hilo tty durante la desconexi\u00f3n de un hilo tty previo."
    }
  ],
  "metrics": {
    "cvssMetricV30": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 3.6
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:C",
          "baseScore": 4.7,
          "accessVector": "LOCAL",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "COMPLETE"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 3.4,
        "impactScore": 6.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-362"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "3.13.3",
              "matchCriteriaId": "7E7A459C-0A2D-4CD2-9FCD-4592B31F774C"
            }
          ]
        }
      ]
    },
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:redhat:enterprise_linux_compute_node_eus:7.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "9835B192-FE11-4FB6-B1D8-C47530A46014"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:7.1_s390x:*:*:*:*:*:*:*",
              "matchCriteriaId": "B4860C7C-372F-4AE1-A893-2EB952042638"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian_eus:7.1_ppc64:*:*:*:*:*:*:*",
              "matchCriteriaId": "5B6ED0AA-CD87-47A5-8E82-C9C7BD14F1AE"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:7.1_ppc64le:*:*:*:*:*:*:*",
              "matchCriteriaId": "97DB8096-0177-4F72-A324-196EB5DF6C66"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:redhat:enterprise_linux_server_eus:7.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "0E8CD4EF-DC90-40BB-A721-6EC087507906"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cf872776fc84128bb779ce2b83a37c884c3203ae",
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2015/05/26/1",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/74820",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2016:1395",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1218879",
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking",
        "VDB Entry"
      ]
    },
    {
      "url": "https://github.com/torvalds/linux/commit/cf872776fc84128bb779ce2b83a37c884c3203ae",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.kernel.org/pub/linux/kernel/next/patch-v3.13-rc4-next-20131218.xz",
      "source": "cve@mitre.org",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cf872776fc84128bb779ce2b83a37c884c3203ae",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2015/05/26/1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/74820",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2016:1395",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1218879",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Issue Tracking",
        "VDB Entry"
      ]
    },
    {
      "url": "https://github.com/torvalds/linux/commit/cf872776fc84128bb779ce2b83a37c884c3203ae",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.kernel.org/pub/linux/kernel/next/patch-v3.13-rc4-next-20131218.xz",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ]
    }
  ]
}