{
   "CVE_data_meta" : {
      "ASSIGNER" : "cve@mitre.org",
      "ID" : "CVE-2018-12896",
      "STATE" : "PUBLIC"
   },
   "affects" : {
      "vendor" : {
         "vendor_data" : [
            {
               "product" : {
                  "product_data" : [
                     {
                        "product_name" : "n/a",
                        "version" : {
                           "version_data" : [
                              {
                                 "version_value" : "n/a"
                              }
                           ]
                        }
                     }
                  ]
               },
               "vendor_name" : "n/a"
            }
         ]
      }
   },
   "data_format" : "MITRE",
   "data_type" : "CVE",
   "data_version" : "4.0",
   "description" : {
      "description_data" : [
         {
            "lang" : "eng",
            "value" : "An issue was discovered in the Linux kernel through 4.17.3. An Integer Overflow in kernel/time/posix-timers.c in the POSIX timer code is caused by the way the overrun accounting works. Depending on interval and expiry time values, the overrun can be larger than INT_MAX, but the accounting is int based. This basically makes the accounting values, which are visible to user space via timer_getoverrun(2) and siginfo::si_overrun, random. For example, a local user can cause a denial of service (signed integer overflow) via crafted mmap, futex, timer_create, and timer_settime system calls."
         }
      ]
   },
   "problemtype" : {
      "problemtype_data" : [
         {
            "description" : [
               {
                  "lang" : "eng",
                  "value" : "n/a"
               }
            ]
         }
      ]
   },
   "references" : {
      "reference_data" : [
         {
            "name" : "https://bugzilla.kernel.org/show_bug.cgi?id=200189",
            "refsource" : "MISC",
            "url" : "https://bugzilla.kernel.org/show_bug.cgi?id=200189"
         },
         {
            "name" : "https://github.com/lcytxw/bug_repro/tree/master/bug_200189",
            "refsource" : "MISC",
            "url" : "https://github.com/lcytxw/bug_repro/tree/master/bug_200189"
         },
         {
            "name" : "https://github.com/torvalds/linux/commit/78c9c4dfbf8c04883941445a195276bb4bb92c76",
            "refsource" : "MISC",
            "url" : "https://github.com/torvalds/linux/commit/78c9c4dfbf8c04883941445a195276bb4bb92c76"
         },
         {
            "name" : "USN-3847-1",
            "refsource" : "UBUNTU",
            "url" : "https://usn.ubuntu.com/3847-1/"
         },
         {
            "name" : "USN-3847-2",
            "refsource" : "UBUNTU",
            "url" : "https://usn.ubuntu.com/3847-2/"
         },
         {
            "name" : "USN-3847-3",
            "refsource" : "UBUNTU",
            "url" : "https://usn.ubuntu.com/3847-3/"
         },
         {
            "name" : "USN-3848-1",
            "refsource" : "UBUNTU",
            "url" : "https://usn.ubuntu.com/3848-1/"
         },
         {
            "name" : "USN-3848-2",
            "refsource" : "UBUNTU",
            "url" : "https://usn.ubuntu.com/3848-2/"
         },
         {
            "name" : "USN-3849-2",
            "refsource" : "UBUNTU",
            "url" : "https://usn.ubuntu.com/3849-2/"
         },
         {
            "name" : "USN-3849-1",
            "refsource" : "UBUNTU",
            "url" : "https://usn.ubuntu.com/3849-1/"
         }
      ]
   }
}