{
  "threat_severity" : "Moderate",
  "public_date" : "2018-01-17T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: denial of service via ioctl call in network tun handling",
    "id" : "1716328",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1716328"
  },
  "cvss3" : {
    "cvss3_base_score" : "6.2",
    "cvss3_scoring_vector" : "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-400->CWE-476",
  "details" : [ "In the tun subsystem in the Linux kernel before 4.13.14, dev_get_valid_name is not called before register_netdevice. This allows local users to cause a denial of service (NULL pointer dereference and panic) via an ioctl(TUNSETIFF) call with a dev name containing a / character. This is similar to CVE-2013-4343.", "A flaw was found in the Linux kernel's implementation of networking tunnel device ioctl. A local attacker can cause a denial of service (NULL pointer dereference and panic) via an ioctl (TUNSETIFF) call with a dev name containing a / character." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2020-03-31T00:00:00Z",
    "advisory" : "RHSA-2020:1070",
    "cpe" : "cpe:/a:redhat:rhel_extras_rt:7",
    "package" : "kernel-rt-0:3.10.0-1127.rt56.1093.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2020-03-31T00:00:00Z",
    "advisory" : "RHSA-2020:1016",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "kernel-0:3.10.0-1127.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.6 Extended Update Support",
    "release_date" : "2020-07-07T00:00:00Z",
    "advisory" : "RHSA-2020:2851",
    "cpe" : "cpe:/o:redhat:rhel_eus:7.6",
    "package" : "kernel-0:3.10.0-957.56.1.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 Virtualization 4.2 for Red Hat Enterprise Linux 7.6 EUS",
    "release_date" : "2020-07-07T00:00:00Z",
    "advisory" : "RHSA-2020:2851",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7::hypervisor",
    "package" : "kernel-0:3.10.0-957.56.1.el7"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Out of support scope",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Will not fix",
    "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 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"
  }, {
    "product_name" : "Red Hat Enterprise MRG 2",
    "fix_state" : "Out of support scope",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/a:redhat:enterprise_mrg:2"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2018-7191\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-7191" ],
  "name" : "CVE-2018-7191",
  "csaw" : false
}