{
  "threat_severity" : "Moderate",
  "public_date" : "2015-04-27T00:00:00Z",
  "bugzilla" : {
    "description" : "krb5: issues in OTP and PKINIT kdcpreauth modules leading to requires_preauth bypass",
    "id" : "1216133",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1216133"
  },
  "cvss" : {
    "cvss_base_score" : "5.8",
    "cvss_scoring_vector" : "AV:N/AC:M/Au:N/C:P/I:P/A:N",
    "status" : "verified"
  },
  "details" : [ "The kdcpreauth modules in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.2 do not properly track whether a client's request has been validated, which allows remote attackers to bypass an intended preauthentication requirement by providing (1) zero bytes of data or (2) an arbitrary realm name, related to plugins/preauth/otp/main.c and plugins/preauth/pkinit/pkinit_srv.c.", "A flaw was found in the OTP kdcpreauth module of MIT Kerberos. A remote attacker could use this flaw to bypass the requires_preauth flag on a client principal and obtain a ciphertext encrypted in the principal's long-term key. This ciphertext could be used to conduct an off-line dictionary attack against the user's password." ],
  "statement" : "This issue does not affect the version of krb5 package as shipped with Red Hat Enterprise Linux 5 and 6.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2015-11-19T00:00:00Z",
    "advisory" : "RHSA-2015:2154",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "krb5-0:1.13.2-10.el7"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "krb5",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "krb5",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2015-2694\nhttps://nvd.nist.gov/vuln/detail/CVE-2015-2694" ],
  "name" : "CVE-2015-2694",
  "csaw" : false
}