{
  "threat_severity" : "Moderate",
  "public_date" : "2017-06-22T00:00:00Z",
  "bugzilla" : {
    "description" : "Kernel: KVM: debug exception via syscall emulation",
    "id" : "1464473",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1464473"
  },
  "cvss" : {
    "cvss_base_score" : "5.4",
    "cvss_scoring_vector" : "AV:A/AC:M/Au:N/C:P/I:P/A:P",
    "status" : "verified"
  },
  "cvss3" : {
    "cvss3_base_score" : "5.5",
    "cvss3_scoring_vector" : "CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
    "status" : "verified"
  },
  "cwe" : "CWE-250",
  "details" : [ "A flaw was found in the Linux kernel before version 4.12 in the way the KVM module processed the trap flag(TF) bit in EFLAGS during emulation of the syscall instruction, which leads to a debug exception(#DB) being raised in the guest stack. A user/process inside a guest could use this flaw to potentially escalate their privileges inside the guest. Linux guests are not affected by this.", "A flaw was found in the way the Linux KVM module processed the trap flag(TF) bit in EFLAGS during emulation of the syscall instruction, which leads to a debug exception(#DB) being raised in the guest stack.  A user/process inside a guest could use this flaw to potentially escalate their privileges inside the guest. Linux guests are not affected by this." ],
  "statement" : "This issue does not affect the versions of the kernel package as shipped with\nRed Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2.\nThis issue affects the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 7. Future kernel updates for Red Hat Enterprise Linux 7\nmay address this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2018-03-06T00:00:00Z",
    "advisory" : "RHSA-2018:0412",
    "cpe" : "cpe:/a:redhat:rhel_extras_rt:7",
    "package" : "kernel-rt-0:3.10.0-693.21.1.rt56.639.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2018-03-06T00:00:00Z",
    "advisory" : "RHSA-2018:0395",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "kernel-0:3.10.0-693.21.1.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 Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel-alt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "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-2017-7518\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-7518" ],
  "name" : "CVE-2017-7518",
  "csaw" : false
}