{
   "CVE_data_meta" : {
      "ASSIGNER" : "cve@mitre.org",
      "ID" : "CVE-2014-8989",
      "STATE" : "PUBLIC"
   },
   "affects" : {
      "vendor" : {
         "vendor_data" : [
            {
               "product" : {
                  "product_data" : [
                     {
                        "product_name" : "n/a",
                        "version" : {
                           "version_data" : [
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                                 "version_value" : "n/a"
                              }
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                     }
                  ]
               },
               "vendor_name" : "n/a"
            }
         ]
      }
   },
   "data_format" : "MITRE",
   "data_type" : "CVE",
   "data_version" : "4.0",
   "description" : {
      "description_data" : [
         {
            "lang" : "eng",
            "value" : "The Linux kernel through 3.17.4 does not properly restrict dropping of supplemental group memberships in certain namespace scenarios, which allows local users to bypass intended file permissions by leveraging a POSIX ACL containing an entry for the group category that is more restrictive than the entry for the other category, aka a \"negative groups\" issue, related to kernel/groups.c, kernel/uid16.c, and kernel/user_namespace.c."
         }
      ]
   },
   "problemtype" : {
      "problemtype_data" : [
         {
            "description" : [
               {
                  "lang" : "eng",
                  "value" : "n/a"
               }
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         }
      ]
   },
   "references" : {
      "reference_data" : [
         {
            "name" : "[oss-security] 20141120 Re: Linux user namespaces can bypass group-based restrictions - Linux kernel",
            "refsource" : "MLIST",
            "url" : "http://www.openwall.com/lists/oss-security/2014/11/20/4"
         },
         {
            "name" : "http://thread.gmane.org/gmane.linux.man/7385/",
            "refsource" : "CONFIRM",
            "url" : "http://thread.gmane.org/gmane.linux.man/7385/"
         },
         {
            "name" : "FEDORA-2015-0515",
            "refsource" : "FEDORA",
            "url" : "http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147973.html"
         },
         {
            "name" : "FEDORA-2015-0517",
            "refsource" : "FEDORA",
            "url" : "http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147864.html"
         },
         {
            "name" : "MDVSA-2015:058",
            "refsource" : "MANDRIVA",
            "url" : "http://www.mandriva.com/security/advisories?name=MDVSA-2015:058"
         },
         {
            "name" : "USN-2515-1",
            "refsource" : "UBUNTU",
            "url" : "http://www.ubuntu.com/usn/USN-2515-1"
         },
         {
            "name" : "USN-2516-1",
            "refsource" : "UBUNTU",
            "url" : "http://www.ubuntu.com/usn/USN-2516-1"
         },
         {
            "name" : "USN-2517-1",
            "refsource" : "UBUNTU",
            "url" : "http://www.ubuntu.com/usn/USN-2517-1"
         },
         {
            "name" : "USN-2518-1",
            "refsource" : "UBUNTU",
            "url" : "http://www.ubuntu.com/usn/USN-2518-1"
         },
         {
            "name" : "71154",
            "refsource" : "BID",
            "url" : "http://www.securityfocus.com/bid/71154"
         }
      ]
   }
}