FKIE_CVE-2016-8650

Vulnerability from fkie_nvd - Published: 2016-11-28 03:59 - Updated: 2026-06-17 00:54
Severity
5.5 (Medium) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
The mpi_powm function in lib/mpi/mpi-pow.c in the Linux kernel through 4.8.11 does not ensure that memory is allocated for limb data, which allows local users to cause a denial of service (stack memory corruption and panic) via an add_key system call for an RSA key with a zero exponent.
References
secalert@redhat.comhttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f5527fffff3f002b0a6b376163613b82f69de073Issue Tracking, Patch, Vendor Advisory
secalert@redhat.comhttp://seclists.org/fulldisclosure/2016/Nov/76Mailing List
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2016/11/24/8Mailing List, Third Party Advisory
secalert@redhat.comhttp://www.securityfocus.com/bid/94532
secalert@redhat.comhttp://www.securitytracker.com/id/1037968
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2017:0931
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2017:0932
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2017:0933
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2018:1854
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1395187Issue Tracking
secalert@redhat.comhttps://github.com/torvalds/linux/commit/f5527fffff3f002b0a6b376163613b82f69de073Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://source.android.com/security/bulletin/2017-03-01.html
af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f5527fffff3f002b0a6b376163613b82f69de073Issue Tracking, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2016/Nov/76Mailing List
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2016/11/24/8Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/94532
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1037968
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:0931
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:0932
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:0933
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:1854
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1395187Issue Tracking
af854a3a-2127-422b-91ae-364da2661108https://github.com/torvalds/linux/commit/f5527fffff3f002b0a6b376163613b82f69de073Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://source.android.com/security/bulletin/2017-03-01.html
Impacted products
Vendor Product Version
linux linux_kernel *
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": "00B2C5A0-53C6-4A5A-A79A-9A213FA01EE5",
              "versionEndIncluding": "4.8.11",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The mpi_powm function in lib/mpi/mpi-pow.c in the Linux kernel through 4.8.11 does not ensure that memory is allocated for limb data, which allows local users to cause a denial of service (stack memory corruption and panic) via an add_key system call for an RSA key with a zero exponent."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n mpi_powm en lib/mpi/mpi-pow.c en el kernel Linux hasta la versi\u00f3n 4.8.11 no se asegura que la memoria est\u00e9 alojada para datos limb, lo que permite a usuarios locales provocar una denegaci\u00f3n de servicio (corrupci\u00f3n de memoria de pila y p\u00e1nico) a trav\u00e9s de una llamada de sistema add_key para una llave RSA con un componente cero."
    }
  ],
  "id": "CVE-2016-8650",
  "lastModified": "2026-06-17T00:54:44.690",
  "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
      }
    ],
    "cvssMetricV30": [
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        "cvssData": {
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          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.0"
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        "impactScore": 3.6,
        "source": "nvd@nist.gov",
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  "published": "2016-11-28T03:59:09.843",
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      "url": "https://access.redhat.com/errata/RHSA-2017:0931"
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      "url": "https://access.redhat.com/errata/RHSA-2017:0932"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2017:0933"
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    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2018:1854"
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      ],
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    },
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      "url": "https://access.redhat.com/errata/RHSA-2017:0932"
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      "url": "https://access.redhat.com/errata/RHSA-2017:0933"
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  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
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        {
          "lang": "en",
          "value": "CWE-399"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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