{
  "threat_severity" : "Moderate",
  "public_date" : "2018-05-17T17:00:00Z",
  "bugzilla" : {
    "description" : "kernel: fuse-backed file mmap-ed onto process cmdline arguments causes denial of service",
    "id" : "1575472",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1575472"
  },
  "cvss3" : {
    "cvss3_base_score" : "2.8",
    "cvss3_scoring_vector" : "CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L",
    "status" : "verified"
  },
  "cwe" : "CWE-122",
  "details" : [ "A flaw was found affecting the Linux kernel before version 4.17. By mmap()ing a FUSE-backed file onto a process's memory containing command line arguments (or environment strings), an attacker can cause utilities from psutils or procps (such as ps, w) or any other program which makes a read() call to the /proc/<pid>/cmdline (or /proc/<pid>/environ) files to block indefinitely (denial of service) or for some controlled time (as a synchronization primitive for other attacks).", "By mmap()ing a FUSE-backed file onto a process's memory containing command line arguments (or environment strings), an attacker can cause utilities from psutils or procps (such as ps, w) or any other program which makes a read() call to the /proc/<pid>/cmdline (or /proc/<pid>/environ) files to block indefinitely (denial of service) or for some controlled time (as a synchronization primitive for other attacks)." ],
  "acknowledgement" : "Red Hat would like to thank Qualys Research Labs for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2018-10-30T00:00:00Z",
    "advisory" : "RHSA-2018:3096",
    "cpe" : "cpe:/a:redhat:rhel_extras_rt:7",
    "package" : "kernel-rt-0:3.10.0-957.rt56.910.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2018-10-30T00:00:00Z",
    "advisory" : "RHSA-2018:2948",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "kernel-alt-0:4.14.0-115.el7a"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2018-10-30T00:00:00Z",
    "advisory" : "RHSA-2018:3083",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "kernel-0:3.10.0-957.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.4 Advanced Update Support",
    "release_date" : "2020-09-22T00:00:00Z",
    "advisory" : "RHSA-2020:3804",
    "cpe" : "cpe:/o:redhat:rhel_aus:7.4",
    "package" : "kernel-0:3.10.0-693.76.1.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.4 Telco Extended Update Support",
    "release_date" : "2020-09-22T00:00:00Z",
    "advisory" : "RHSA-2020:3804",
    "cpe" : "cpe:/o:redhat:rhel_tus:7.4",
    "package" : "kernel-0:3.10.0-693.76.1.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions",
    "release_date" : "2020-09-22T00:00:00Z",
    "advisory" : "RHSA-2020:3804",
    "cpe" : "cpe:/o:redhat:rhel_e4s:7.4",
    "package" : "kernel-0:3.10.0-693.76.1.el7"
  }, {
    "product_name" : "Red Hat Enterprise MRG 2",
    "release_date" : "2020-09-22T00:00:00Z",
    "advisory" : "RHSA-2020:3810",
    "cpe" : "cpe:/a:redhat:enterprise_mrg:2:server:el6",
    "package" : "kernel-rt-1:3.10.0-693.76.1.rt56.676.el6rt"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Will not fix",
    "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 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2018-1120\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-1120\nhttp://seclists.org/oss-sec/2018/q2/122" ],
  "name" : "CVE-2018-1120",
  "csaw" : false
}