{
  "threat_severity" : "Low",
  "public_date" : "2017-04-18T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: security: The built-in keyrings for security tokens can be joined as a session and then modified by the root user",
    "id" : "1389433",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1389433"
  },
  "cvss" : {
    "cvss_base_score" : "1.2",
    "cvss_scoring_vector" : "AV:L/AC:H/Au:N/C:N/I:P/A:N",
    "status" : "verified"
  },
  "cvss3" : {
    "cvss3_base_score" : "4.4",
    "cvss3_scoring_vector" : "CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N",
    "status" : "verified"
  },
  "cwe" : "CWE-732",
  "details" : [ "It was discovered in the Linux kernel before 4.11-rc8 that root can gain direct access to an internal keyring, such as '.dns_resolver' in RHEL-7 or '.builtin_trusted_keys' upstream, by joining it as its session keyring. This allows root to bypass module signature verification by adding a new public key of its own devising to the keyring.", "It was discovered that root can gain direct access to an internal keyring, such as '.dns_resolver' in RHEL-7 or '.builtin_trusted_keys' upstream, by joining it as its session keyring. This allows root to bypass module signature verification by adding a new public key of its own devising to the keyring." ],
  "statement" : "This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5 as the code with the flaw is not present in this product.\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" : "This issue was discovered by David Howells (Red Hat).",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2017-08-01T00:00:00Z",
    "advisory" : "RHSA-2017:2077",
    "cpe" : "cpe:/a:redhat:rhel_extras_rt:7",
    "package" : "kernel-rt-0:3.10.0-693.rt56.617.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2017-08-01T00:00:00Z",
    "advisory" : "RHSA-2017:1842",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "kernel-0:3.10.0-693.el7"
  }, {
    "product_name" : "Red Hat Enterprise MRG 2",
    "release_date" : "2017-09-06T00:00:00Z",
    "advisory" : "RHSA-2017:2669",
    "cpe" : "cpe:/a:redhat:enterprise_mrg:2:server:el6",
    "package" : "kernel-rt-1:3.10.0-693.2.1.rt56.585.el6rt"
  } ],
  "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" : "Affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2016-9604\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-9604" ],
  "name" : "CVE-2016-9604",
  "csaw" : false
}