{
  "threat_severity" : "Moderate",
  "public_date" : "2015-12-28T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: pipe: limit the per-user amount of pages allocated in pipes",
    "id" : "1313428",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1313428"
  },
  "cvss" : {
    "cvss_base_score" : "4.9",
    "cvss_scoring_vector" : "AV:L/AC:L/Au:N/C:N/I:N/A:C",
    "status" : "verified"
  },
  "cvss3" : {
    "cvss3_base_score" : "5.5",
    "cvss3_scoring_vector" : "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-400",
  "details" : [ "fs/pipe.c in the Linux kernel before 4.5 does not limit the amount of unread data in pipes, which allows local users to cause a denial of service (memory consumption) by creating many pipes with non-default sizes.", "It is possible for a single process to cause an OOM condition by filling large pipes with data that are never read. A typical process filling 4096 pipes with 1 MB of data will use 4 GB of memory and there can be multiple such processes, up to a per-user-limit." ],
  "statement" : "This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 5. This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.\nThis issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 6, 7 and MRG-2. Future Linux kernel updates for the respective releases might address this issue.",
  "acknowledgement" : "Red Hat would like to thank Tetsuo Handa for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2016-11-03T00:00:00Z",
    "advisory" : "RHSA-2016:2584",
    "cpe" : "cpe:/a:redhat:rhel_extras_rt:7",
    "package" : "kernel-rt-0:3.10.0-514.rt56.420.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2016-11-03T00:00:00Z",
    "advisory" : "RHSA-2016:2574",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "kernel-0:3.10.0-514.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.2 Extended Update Support",
    "release_date" : "2017-01-31T00:00:00Z",
    "advisory" : "RHSA-2017:0217",
    "cpe" : "cpe:/o:redhat:rhel_eus:7.2",
    "package" : "kernel-0:3.10.0-327.46.1.el7"
  } ],
  "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" : "Affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise MRG 2",
    "fix_state" : "Affected",
    "package_name" : "realtime-kernel",
    "cpe" : "cpe:/a:redhat:enterprise_mrg:2"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2016-2847\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-2847" ],
  "name" : "CVE-2016-2847",
  "csaw" : false
}