{
  "threat_severity" : "Moderate",
  "public_date" : "2015-02-19T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: execution in the early microcode loader",
    "id" : "1204722",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1204722"
  },
  "cvss" : {
    "cvss_base_score" : "6.0",
    "cvss_scoring_vector" : "AV:L/AC:H/Au:S/C:C/I:C/A:C",
    "status" : "verified"
  },
  "details" : [ "Stack-based buffer overflow in the get_matching_model_microcode function in arch/x86/kernel/cpu/microcode/intel_early.c in the Linux kernel before 4.0 allows context-dependent attackers to gain privileges by constructing a crafted microcode header and leveraging root privileges for write access to the initrd.", "A stack-based buffer overflow flaw was found in the Linux kernel's early load microcode functionality. On a system with UEFI Secure Boot enabled, a local, privileged user could use this flaw to increase their privileges to the kernel (ring0) level, bypassing intended restrictions in place." ],
  "statement" : "This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6 and Red Hat Enteprise MRG 2. Future kernel and kernel-rt updates for Red Hat Enterprise Linux 7 may address this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2015-08-05T00:00:00Z",
    "advisory" : "RHSA-2015:1565",
    "cpe" : "cpe:/a:redhat:rhel_extras_rt:7",
    "package" : "kernel-rt-0:3.10.0-229.11.1.rt56.141.11.el7_1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2015-08-06T00:00:00Z",
    "advisory" : "RHSA-2015:1534",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "kernel-0:3.10.0-229.11.1.ael7b"
  } ],
  "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" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise MRG 2",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/a:redhat:enterprise_mrg:2"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2015-2666\nhttps://nvd.nist.gov/vuln/detail/CVE-2015-2666" ],
  "name" : "CVE-2015-2666",
  "csaw" : false
}