cvelist/2018/5xxx/CVE-2018-5733.json

{
   "CVE_data_meta" : {
      "ASSIGNER" : "security-officer@isc.org",
      "DATE_PUBLIC" : "2018-02-28T00:00:00.000Z",
      "ID" : "CVE-2018-5733",
      "STATE" : "PUBLIC",
      "TITLE" : "A malicious client can overflow a reference counter in ISC dhcpd"
   },
   "affects" : {
      "vendor" : {
         "vendor_data" : [
            {
               "product" : {
                  "product_data" : [
                     {
                        "product_name" : "ISC DHCP",
                        "version" : {
                           "version_data" : [
                              {
                                 "version_name" : "ISC DHCP",
                                 "version_value" : "4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0"
                              }
                           ]
                        }
                     }
                  ]
               },
               "vendor_name" : "ISC"
            }
         ]
      }
   },
   "credit" : [
      {
         "lang" : "eng",
         "value" : "ISC would like to thank Felix Wilhelm, Google Security Team, for reporting this vulnerability."
      }
   ],
   "data_format" : "MITRE",
   "data_type" : "CVE",
   "data_version" : "4.0",
   "description" : {
      "description_data" : [
         {
            "lang" : "eng",
            "value" : "A malicious client which is allowed to send very large amounts of traffic (billions of packets) to a DHCP server can eventually overflow a 32-bit reference counter, potentially causing dhcpd to crash. Affects ISC DHCP 4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0."
         }
      ]
   },
   "impact" : {
      "cvss" : {
         "attackComplexity" : "HIGH",
         "attackVector" : "NETWORK",
         "availabilityImpact" : "HIGH",
         "baseScore" : 5.9,
         "baseSeverity" : "MEDIUM",
         "confidentialityImpact" : "NONE",
         "integrityImpact" : "NONE",
         "privilegesRequired" : "NONE",
         "scope" : "UNCHANGED",
         "userInteraction" : "NONE",
         "vectorString" : "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
         "version" : "3.0"
      }
   },
   "problemtype" : {
      "problemtype_data" : [
         {
            "description" : [
               {
                  "lang" : "eng",
                  "value" : "Successful exploitation of this vulnerability may exhaust the memory available to dhcpd and/or cause it to crash, resulting in a denial of service to clients."
               }
            ]
         }
      ]
   },
   "references" : {
      "reference_data" : [
         {
            "name" : "[debian-lts-announce] 20180322 [SECURITY] [DLA 1313-1] isc-dhcp security update",
            "refsource" : "MLIST",
            "url" : "https://lists.debian.org/debian-lts-announce/2018/03/msg00015.html"
         },
         {
            "name" : "https://kb.isc.org/docs/aa-01567",
            "refsource" : "CONFIRM",
            "url" : "https://kb.isc.org/docs/aa-01567"
         },
         {
            "name" : "DSA-4133",
            "refsource" : "DEBIAN",
            "url" : "https://www.debian.org/security/2018/dsa-4133"
         },
         {
            "name" : "RHSA-2018:0469",
            "refsource" : "REDHAT",
            "url" : "https://access.redhat.com/errata/RHSA-2018:0469"
         },
         {
            "name" : "RHSA-2018:0483",
            "refsource" : "REDHAT",
            "url" : "https://access.redhat.com/errata/RHSA-2018:0483"
         },
         {
            "name" : "USN-3586-1",
            "refsource" : "UBUNTU",
            "url" : "https://usn.ubuntu.com/3586-1/"
         },
         {
            "name" : "USN-3586-2",
            "refsource" : "UBUNTU",
            "url" : "https://usn.ubuntu.com/3586-2/"
         },
         {
            "name" : "103188",
            "refsource" : "BID",
            "url" : "http://www.securityfocus.com/bid/103188"
         },
         {
            "name" : "1040437",
            "refsource" : "SECTRACK",
            "url" : "http://www.securitytracker.com/id/1040437"
         }
      ]
   },
   "solution" : [
      {
         "lang" : "eng",
         "value" : "Upgrade to the patched release most closely related to your current version of DHCP.\n\n    DHCP 4.1-ESV-R15-P1\n    DHCP 4.3.6-P1\n    DHCP 4.4.1"
      }
   ],
   "source" : {
      "discovery" : "EXTERNAL"
   }
}