{
  "threat_severity" : "Moderate",
  "public_date" : "2014-03-18T00:00:00Z",
  "bugzilla" : {
    "description" : "Kernel: missing check during hugepage migration",
    "id" : "1104097",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1104097"
  },
  "cvss" : {
    "cvss_base_score" : "4.7",
    "cvss_scoring_vector" : "AV:L/AC:H/Au:N/C:N/I:P/A:C",
    "status" : "verified"
  },
  "details" : [ "The Linux kernel through 3.14.5 does not properly consider the presence of hugetlb entries, which allows local users to cause a denial of service (memory corruption or system crash) by accessing certain memory locations, as demonstrated by triggering a race condition via numa_maps read operations during hugepage migration, related to fs/proc/task_mmu.c and mm/mempolicy.c.", "A flaw was found in the way Linux kernel's Transparent Huge Pages (THP) implementation handled non-huge page migration. A local, unprivileged user could use this flaw to crash the kernel by migrating transparent hugepages." ],
  "statement" : "This issue did not affect the version of the kernel package as shipped with\nRed Hat Enterprise Linux 5.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "release_date" : "2015-07-20T00:00:00Z",
    "advisory" : "RHSA-2015:1272",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6",
    "package" : "kernel-0:2.6.32-573.el6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2015-03-05T00:00:00Z",
    "advisory" : "RHSA-2015:0290",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "kernel-0:3.10.0-229.el7"
  }, {
    "product_name" : "Red Hat Enterprise MRG 2",
    "release_date" : "2014-07-22T00:00:00Z",
    "advisory" : "RHSA-2014:0913",
    "cpe" : "cpe:/a:redhat:enterprise_mrg:2:server:el6",
    "package" : "kernel-rt-0:3.10.33-rt32.43.el6rt"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2014-3940\nhttps://nvd.nist.gov/vuln/detail/CVE-2014-3940" ],
  "name" : "CVE-2014-3940",
  "csaw" : false
}