{
  "threat_severity" : "Low",
  "public_date" : "2014-12-05T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: x86: espfix not working for 32-bit KVM paravirt guests",
    "id" : "1172765",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1172765"
  },
  "cvss" : {
    "cvss_base_score" : "1.9",
    "cvss_scoring_vector" : "AV:L/AC:M/Au:N/C:P/I:N/A:N",
    "status" : "verified"
  },
  "details" : [ "The paravirt_ops_setup function in arch/x86/kernel/kvm.c in the Linux kernel through 3.18 uses an improper paravirt_enabled setting for KVM guest kernels, which makes it easier for guest OS users to bypass the ASLR protection mechanism via a crafted application that reads a 16-bit value.", "It was found that the espfix functionality does not work for 32-bit KVM paravirtualized guests. A local, unprivileged guest user could potentially use this flaw to leak kernel stack addresses." ],
  "statement" : "This issue did not affect the Linux kernel packages as shipped with Red\nHat Enterprise Linux 5 and 7, and Red Hat Enterprise Linux MRG 2.",
  "acknowledgement" : "Red Hat would like to thank Andy Lutomirski for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "release_date" : "2016-05-10T00:00:00Z",
    "advisory" : "RHSA-2016:0855",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6",
    "package" : "kernel-0:2.6.32-642.el6"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise MRG 2",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/a:redhat:enterprise_mrg:2"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2014-8134\nhttps://nvd.nist.gov/vuln/detail/CVE-2014-8134" ],
  "name" : "CVE-2014-8134",
  "csaw" : false
}