{
  "threat_severity" : "Moderate",
  "public_date" : "2016-07-14T00:00:00Z",
  "bugzilla" : {
    "description" : "openssh: User enumeration via covert timing channel",
    "id" : "1357442",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1357442"
  },
  "cvss" : {
    "cvss_base_score" : "5.0",
    "cvss_scoring_vector" : "AV:N/AC:L/Au:N/C:P/I:N/A:N",
    "status" : "verified"
  },
  "cvss3" : {
    "cvss3_base_score" : "5.3",
    "cvss3_scoring_vector" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
    "status" : "verified"
  },
  "cwe" : "CWE-385",
  "details" : [ "sshd in OpenSSH before 7.3, when SHA256 or SHA512 are used for user password hashing, uses BLOWFISH hashing on a static password when the username does not exist, which allows remote attackers to enumerate users by leveraging the timing difference between responses when a large password is provided.", "A covert timing channel flaw was found in the way OpenSSH handled authentication of non-existent users. A remote unauthenticated attacker could possibly use this flaw to determine valid user names by measuring the timing of server responses." ],
  "statement" : "This issue in OpenSSH is mitigated by the usage of SELinux in Red Hat Enterprise Linux 6 and Red Hat Enterprise Linux 7.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "release_date" : "2017-08-31T00:00:00Z",
    "advisory" : "RHSA-2017:2563",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6",
    "package" : "openssh-0:5.3p1-123.el6_9"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2017-08-01T00:00:00Z",
    "advisory" : "RHSA-2017:2029",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "openssh-0:7.4p1-11.el7"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Will not fix",
    "package_name" : "openssh",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2016-6210\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-6210" ],
  "name" : "CVE-2016-6210",
  "csaw" : false
}