{
  "threat_severity" : "Important",
  "public_date" : "2016-11-21T00:00:00Z",
  "bugzilla" : {
    "description" : "ipsilon: DoS via logging out all open SAML2 sessions",
    "id" : "1392829",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1392829"
  },
  "cvss" : {
    "cvss_base_score" : "6.4",
    "cvss_scoring_vector" : "AV:N/AC:L/Au:N/C:P/I:N/A:P",
    "status" : "verified"
  },
  "cvss3" : {
    "cvss3_base_score" : "8.2",
    "cvss3_scoring_vector" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-287",
  "details" : [ "A vulnerability in ipsilon 2.0 before 2.0.2, 1.2 before 1.2.1, 1.1 before 1.1.2, and 1.0 before 1.0.3 was found that allows attacker to log out active sessions of other users.  This issue is related to how it tracks sessions, and allows an unauthenticated attacker to view and terminate active sessions from other users. It is also called a \"SAML2 multi-session vulnerability.\"", "A vulnerability was found in ipsilon in the SAML2 provider's handling of sessions. An attacker able to hit the logout URL could determine what service providers other users are logged in to and terminate their sessions." ],
  "acknowledgement" : "This issue was discovered by Howard Johnson and Patrick Uiterwijk (Red Hat).",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2016-11-21T00:00:00Z",
    "advisory" : "RHSA-2016:2809",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "ipsilon-0:1.0.0-13.el7_3"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2016-8638\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-8638" ],
  "name" : "CVE-2016-8638",
  "csaw" : false
}