{
  "threat_severity" : "Important",
  "public_date" : "2019-09-04T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: double free may be caused by the function allocate_trace_buffer in the file kernel/trace/trace.c",
    "id" : "1758671",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1758671"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.8",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-416",
  "details" : [ "An issue was discovered in the Linux kernel before 4.14.11. A double free may be caused by the function allocate_trace_buffer in the file kernel/trace/trace.c.", "A flaw was found in the allocate_trace_buffer in kernel/trace/trace.c in the debug subsystem, when failure to allocate a dynamic percpu area, a resource cleanup is called. The pointer (buf->buffer) still holds the address and is not set to NULL, which can cause a use-after-free problem, leading to a dangling pointer issue." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2020-05-12T00:00:00Z",
    "advisory" : "RHSA-2020:2085",
    "cpe" : "cpe:/a:redhat:rhel_extras_rt:7",
    "package" : "kernel-rt-0:3.10.0-1127.8.2.rt56.1103.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2020-05-12T00:00:00Z",
    "advisory" : "RHSA-2020:2082",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "kernel-0:3.10.0-1127.8.2.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2020-05-12T00:00:00Z",
    "advisory" : "RHSA-2020:2104",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "kernel-alt-0:4.14.0-115.21.2.el7a"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.2 Advanced Update Support",
    "release_date" : "2020-05-26T00:00:00Z",
    "advisory" : "RHSA-2020:2285",
    "cpe" : "cpe:/o:redhat:rhel_aus:7.2",
    "package" : "kernel-0:3.10.0-327.88.1.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.3 Advanced Update Support",
    "release_date" : "2020-05-26T00:00:00Z",
    "advisory" : "RHSA-2020:2277",
    "cpe" : "cpe:/o:redhat:rhel_aus:7.3",
    "package" : "kernel-0:3.10.0-514.76.1.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.3 Telco Extended Update Support",
    "release_date" : "2020-05-26T00:00:00Z",
    "advisory" : "RHSA-2020:2277",
    "cpe" : "cpe:/o:redhat:rhel_tus:7.3",
    "package" : "kernel-0:3.10.0-514.76.1.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.3 Update Services for SAP Solutions",
    "release_date" : "2020-05-26T00:00:00Z",
    "advisory" : "RHSA-2020:2277",
    "cpe" : "cpe:/o:redhat:rhel_e4s:7.3",
    "package" : "kernel-0:3.10.0-514.76.1.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.4 Advanced Update Support",
    "release_date" : "2020-05-19T00:00:00Z",
    "advisory" : "RHSA-2020:2214",
    "cpe" : "cpe:/o:redhat:rhel_aus:7.4",
    "package" : "kernel-0:3.10.0-693.67.1.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.4 Telco Extended Update Support",
    "release_date" : "2020-05-19T00:00:00Z",
    "advisory" : "RHSA-2020:2214",
    "cpe" : "cpe:/o:redhat:rhel_tus:7.4",
    "package" : "kernel-0:3.10.0-693.67.1.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions",
    "release_date" : "2020-05-19T00:00:00Z",
    "advisory" : "RHSA-2020:2214",
    "cpe" : "cpe:/o:redhat:rhel_e4s:7.4",
    "package" : "kernel-0:3.10.0-693.67.1.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.6 Extended Update Support",
    "release_date" : "2020-05-26T00:00:00Z",
    "advisory" : "RHSA-2020:2289",
    "cpe" : "cpe:/o:redhat:rhel_eus:7.6",
    "package" : "kernel-0:3.10.0-957.54.1.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.7 Extended Update Support",
    "release_date" : "2020-06-11T00:00:00Z",
    "advisory" : "RHSA-2020:2522",
    "cpe" : "cpe:/o:redhat:rhel_eus:7.7",
    "package" : "kernel-0:3.10.0-1062.26.1.el7"
  }, {
    "product_name" : "Red Hat Enterprise MRG 2",
    "release_date" : "2020-05-20T00:00:00Z",
    "advisory" : "RHSA-2020:2242",
    "cpe" : "cpe:/a:redhat:enterprise_mrg:2:server:el6",
    "package" : "kernel-rt-1:3.10.0-693.67.1.rt56.665.el6rt"
  }, {
    "product_name" : "Red Hat Virtualization 4.2 for Red Hat Enterprise Linux 7.6 EUS",
    "release_date" : "2020-05-26T00:00:00Z",
    "advisory" : "RHSA-2020:2289",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7::hypervisor",
    "package" : "kernel-0:3.10.0-957.54.1.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 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2017-18595\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-18595" ],
  "name" : "CVE-2017-18595",
  "mitigation" : {
    "value" : "Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update as soon as possible.",
    "lang" : "en:us"
  },
  "csaw" : false
}