{
   "CVE_data_meta" : {
      "ASSIGNER" : "cve@mitre.org",
      "ID" : "CVE-2013-6890",
      "STATE" : "PUBLIC"
   },
   "affects" : {
      "vendor" : {
         "vendor_data" : [
            {
               "product" : {
                  "product_data" : [
                     {
                        "product_name" : "n/a",
                        "version" : {
                           "version_data" : [
                              {
                                 "version_value" : "n/a"
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               "vendor_name" : "n/a"
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   },
   "data_format" : "MITRE",
   "data_type" : "CVE",
   "data_version" : "4.0",
   "description" : {
      "description_data" : [
         {
            "lang" : "eng",
            "value" : "denyhosts 2.6 uses an incorrect regular expression when analyzing authentication logs, which allows remote attackers to cause a denial of service (incorrect block of IP addresses) via crafted login names."
         }
      ]
   },
   "problemtype" : {
      "problemtype_data" : [
         {
            "description" : [
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                  "lang" : "eng",
                  "value" : "n/a"
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   "references" : {
      "reference_data" : [
         {
            "name" : "[oss-security] 20131222 Re: [SECURITY] [DSA 2826-1] denyhosts security update",
            "refsource" : "MLIST",
            "url" : "http://seclists.org/oss-sec/2013/q4/535"
         },
         {
            "name" : "https://bugzilla.redhat.com/show_bug.cgi?id=1045982",
            "refsource" : "MISC",
            "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1045982"
         },
         {
            "name" : "DSA-2826",
            "refsource" : "DEBIAN",
            "url" : "http://www.debian.org/security/2013/dsa-2826"
         },
         {
            "name" : "56239",
            "refsource" : "SECUNIA",
            "url" : "http://secunia.com/advisories/56239"
         }
      ]
   }
}