{
  "threat_severity" : "Moderate",
  "public_date" : "2017-01-24T00:00:00Z",
  "bugzilla" : {
    "description" : "Kernel: kvm: page reference leakage in handle_vmon",
    "id" : "1417812",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1417812"
  },
  "cvss" : {
    "cvss_base_score" : "4.3",
    "cvss_scoring_vector" : "AV:A/AC:H/Au:S/C:N/I:N/A:C",
    "status" : "verified"
  },
  "cvss3" : {
    "cvss3_base_score" : "5.8",
    "cvss3_scoring_vector" : "CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-772",
  "details" : [ "The nested_vmx_check_vmptr function in arch/x86/kvm/vmx.c in the Linux kernel through 4.9.8 improperly emulates the VMXON instruction, which allows KVM L1 guest OS users to cause a denial of service (host OS memory consumption) by leveraging the mishandling of page references.", "Linux kernel built with the KVM visualization support (CONFIG_KVM), with nested visualization(nVMX) feature enabled(nested=1), is vulnerable to host memory leakage issue. It could occur while emulating VMXON instruction in 'handle_vmon'. An L1 guest user could use this flaw to leak host memory potentially resulting in DoS." ],
  "statement" : "This issue does not affect the versions of the kernel package as shipped with\nRed Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG 2.",
  "acknowledgement" : "Red Hat would like to thank Dmitry Vyukov (Google Inc.) for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2017-08-01T00:00:00Z",
    "advisory" : "RHSA-2017:2077",
    "cpe" : "cpe:/a:redhat:rhel_extras_rt:7",
    "package" : "kernel-rt-0:3.10.0-693.rt56.617.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2017-08-01T00:00:00Z",
    "advisory" : "RHSA-2017:1842",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "kernel-0:3.10.0-693.el7"
  } ],
  "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 6",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise MRG 2",
    "fix_state" : "Not affected",
    "package_name" : "realtime-kernel",
    "cpe" : "cpe:/a:redhat:enterprise_mrg:2"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2017-2596\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-2596" ],
  "name" : "CVE-2017-2596",
  "csaw" : false
}