{
  "threat_severity" : "Important",
  "public_date" : "2015-12-14T00:00:00Z",
  "bugzilla" : {
    "description" : "Qemu: virtfs: local privilege escalation via virtfs-proxy-helper",
    "id" : "1292211",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1292211"
  },
  "cvss" : {
    "cvss_base_score" : "6.2",
    "cvss_scoring_vector" : "AV:L/AC:H/Au:N/C:C/I:C/A:C",
    "status" : "draft"
  },
  "cwe" : "CWE-250",
  "details" : [ "Local privilege escalation vulnerability in the Gentoo QEMU package before 2.5.0-r1.", "A Time of Creation To Time of Usage (TOCTTOU) flaw was discovered in the QEMU emulator built with VirtFS(file system pass-through) support to share folders between host and guest. The flaw occurs if the 'virtfs-proxy-helper' program is installed with SUID permissions or has 'CAP_CHOWN' capability.  An unprivileged, local attacker could exploit this flaw to potentially escalate their privileges and gain root access to the system." ],
  "statement" : "This issue does not affect the versions of the kvm and xen packages as shipped with Red Hat Enterprise Linux 5.\nThis issue does not affect the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 6, and the Red Hat Enterprise Linux 6 based versions of qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3.\nThis issue does not affect the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 7.\nThis issue does not affect the Red Hat Enterprise Linux 7 based versions of the qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3.",
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "kvm",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "xen",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "qemu-kvm",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "qemu-kvm",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6",
    "fix_state" : "Not affected",
    "package_name" : "qemu-kvm-rhev",
    "cpe" : "cpe:/a:redhat:openstack:5::el6"
  }, {
    "product_name" : "Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7",
    "fix_state" : "Not affected",
    "package_name" : "qemu-kvm-rhev",
    "cpe" : "cpe:/a:redhat:openstack:5::el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux OpenStack Platform 6 (Juno)",
    "fix_state" : "Not affected",
    "package_name" : "qemu-kvm-rhev",
    "cpe" : "cpe:/a:redhat:openstack:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)",
    "fix_state" : "Not affected",
    "package_name" : "qemu-kvm-rhev",
    "cpe" : "cpe:/a:redhat:openstack:7"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2015-8556\nhttps://nvd.nist.gov/vuln/detail/CVE-2015-8556" ],
  "name" : "CVE-2015-8556",
  "csaw" : false
}