{
   "CVE_data_meta" : {
      "ASSIGNER" : "sfowler@redhat.com",
      "ID" : "CVE-2018-16841",
      "STATE" : "PUBLIC"
   },
   "affects" : {
      "vendor" : {
         "vendor_data" : [
            {
               "product" : {
                  "product_data" : [
                     {
                        "product_name" : "samba",
                        "version" : {
                           "version_data" : [
                              {
                                 "version_value" : "4.7.12"
                              },
                              {
                                 "version_value" : "4.8.7"
                              },
                              {
                                 "version_value" : "4.9.3"
                              }
                           ]
                        }
                     }
                  ]
               },
               "vendor_name" : "[UNKNOWN]"
            }
         ]
      }
   },
   "data_format" : "MITRE",
   "data_type" : "CVE",
   "data_version" : "4.0",
   "description" : {
      "description_data" : [
         {
            "lang" : "eng",
            "value" : "Samba from version 4.3.0 and before versions 4.7.12, 4.8.7 and 4.9.3 are vulnerable to a denial of service. When configured to accept smart-card authentication, Samba's KDC will call talloc_free() twice on the same memory if the principal in a validly signed certificate does not match the principal in the AS-REQ. This is only possible after authentication with a trusted certificate. talloc is robust against further corruption from a double-free with talloc_free() and directly calls abort(), terminating the KDC process."
         }
      ]
   },
   "impact" : {
      "cvss" : [
         [
            {
               "vectorString" : "5.7/CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
               "version" : "3.0"
            }
         ]
      ]
   },
   "problemtype" : {
      "problemtype_data" : [
         {
            "description" : [
               {
                  "lang" : "eng",
                  "value" : "CWE-416"
               }
            ]
         }
      ]
   },
   "references" : {
      "reference_data" : [
         {
            "name" : "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16841",
            "refsource" : "CONFIRM",
            "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16841"
         },
         {
            "name" : "https://www.samba.org/samba/security/CVE-2018-16841.html",
            "refsource" : "CONFIRM",
            "url" : "https://www.samba.org/samba/security/CVE-2018-16841.html"
         },
         {
            "name" : "https://security.netapp.com/advisory/ntap-20181127-0001/",
            "refsource" : "CONFIRM",
            "url" : "https://security.netapp.com/advisory/ntap-20181127-0001/"
         },
         {
            "name" : "DSA-4345",
            "refsource" : "DEBIAN",
            "url" : "https://www.debian.org/security/2018/dsa-4345"
         },
         {
            "name" : "USN-3827-1",
            "refsource" : "UBUNTU",
            "url" : "https://usn.ubuntu.com/3827-1/"
         },
         {
            "name" : "USN-3827-2",
            "refsource" : "UBUNTU",
            "url" : "https://usn.ubuntu.com/3827-2/"
         },
         {
            "name" : "106023",
            "refsource" : "BID",
            "url" : "http://www.securityfocus.com/bid/106023"
         }
      ]
   }
}