fkie_cve-2016-9576
Vulnerability from fkie_nvd
Published
2016-12-28 07:59
Modified
2025-04-12 10:46
Summary
The blk_rq_map_user_iov function in block/blk-map.c in the Linux kernel before 4.8.14 does not properly restrict the type of iterator, which allows local users to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging access to a /dev/sg device.
References
secalert@redhat.comhttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a0ac402cfcdc904f9772e1762b3fda112dcc56a0Patch, Vendor Advisory
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2016-12/msg00040.htmlMailing List, Third Party Advisory
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2016-12/msg00041.htmlMailing List, Third Party Advisory
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2016-12/msg00057.htmlMailing List, Third Party Advisory
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2016-12/msg00062.htmlMailing List, Third Party Advisory
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2016-12/msg00072.htmlMailing List, Third Party Advisory
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2016-12/msg00075.htmlMailing List, Third Party Advisory
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2016-12/msg00081.htmlMailing List, Third Party Advisory
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2016-12/msg00088.htmlMailing List, Third Party Advisory
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2016-12/msg00091.htmlMailing List, Third Party Advisory
secalert@redhat.comhttp://rhn.redhat.com/errata/RHSA-2017-0817.htmlThird Party Advisory
secalert@redhat.comhttp://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.14Release Notes, Vendor Advisory
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2016/12/08/19Mailing List, Patch, Third Party Advisory
secalert@redhat.comhttp://www.securityfocus.com/bid/94821Third Party Advisory, VDB Entry
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2017:1842Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2017:2077Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2017:2669Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1403145Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://github.com/torvalds/linux/commit/a0ac402cfcdc904f9772e1762b3fda112dcc56a0Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a0ac402cfcdc904f9772e1762b3fda112dcc56a0Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00040.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00041.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00057.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00062.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00072.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00075.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00081.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00088.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00091.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2017-0817.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.14Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2016/12/08/19Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/94821Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:1842Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:2077Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:2669Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1403145Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/torvalds/linux/commit/a0ac402cfcdc904f9772e1762b3fda112dcc56a0Patch, Vendor Advisory
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *



{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2D401B73-345B-49B5-B568-153C68F7F784",
              "versionEndExcluding": "4.4.38",
              "versionStartIncluding": "4.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2454EAB6-FC42-4FA4-BE76-CBAA81D4ADC4",
              "versionEndExcluding": "4.8.14",
              "versionStartIncluding": "4.5",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The blk_rq_map_user_iov function in block/blk-map.c in the Linux kernel before 4.8.14 does not properly restrict the type of iterator, which allows local users to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging access to a /dev/sg device."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n blk_rq_map_user_iov en block/blk-map.c en el kernel de Linux en versiones anteriores a 4.8.14 no restringe adecuadamente el tipo de iterador, lo que permite a usuarios locales leer o escribir a ubicaciones de memoria del kernel arbitrarias o provocar una denegaci\u00f3n de servicio (uso despu\u00e9s de liberaci\u00f3n de memoria) aprovechando acceso a un dispositivo /dev/sg."
    }
  ],
  "id": "CVE-2016-9576",
  "lastModified": "2025-04-12T10:46:40.837",
  "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": "2016-12-28T07:59:00.307",
  "references": [
    {
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    },
    {
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    },
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      ],
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    },
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    },
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    },
    {
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      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00072.html"
    },
    {
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      ],
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00075.html"
    },
    {
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      ],
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00081.html"
    },
    {
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    },
    {
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      ],
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    },
    {
      "source": "secalert@redhat.com",
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      ],
      "url": "http://rhn.redhat.com/errata/RHSA-2017-0817.html"
    },
    {
      "source": "secalert@redhat.com",
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      ],
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    },
    {
      "source": "secalert@redhat.com",
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      ],
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    },
    {
      "source": "secalert@redhat.com",
      "tags": [
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        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/94821"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
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      ],
      "url": "https://access.redhat.com/errata/RHSA-2017:1842"
    },
    {
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    },
    {
      "source": "secalert@redhat.com",
      "tags": [
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      ],
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    },
    {
      "source": "secalert@redhat.com",
      "tags": [
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        "Third Party Advisory"
      ],
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    },
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    },
    {
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      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00072.html"
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    {
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    },
    {
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    {
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    },
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    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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