{
  "threat_severity" : "Important",
  "public_date" : "2011-05-18T00:00:00Z",
  "bugzilla" : {
    "description" : "qemu: acpi_piix4: missing hotplug check during device removal",
    "id" : "699773",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=699773"
  },
  "cvss" : {
    "cvss_base_score" : "7.4",
    "cvss_scoring_vector" : "AV:A/AC:M/Au:S/C:C/I:C/A:C",
    "status" : "verified"
  },
  "cwe" : "CWE-672->CWE-119",
  "details" : [ "The pciej_write function in hw/acpi_piix4.c in the PIIX4 Power Management emulation in qemu-kvm does not check if a device is hotpluggable before unplugging the PCI-ISA bridge, which allows privileged guest users to cause a denial of service (guest crash) and possibly execute arbitrary code by sending a crafted value to the 0xae08 (PCI_EJ_BASE) I/O port, which leads to a use-after-free related to \"active qemu timers.\"" ],
  "statement" : "This issue only affects Red Hat Enterprise Linux 6. The version of the qemu/kvm as shipped with Red Hat Enterprise Linux 5 is not affected.",
  "acknowledgement" : "Red Hat would like to thank Nelson Elhage for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "release_date" : "2011-05-19T00:00:00Z",
    "advisory" : "RHSA-2011:0534",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6",
    "package" : "qemu-kvm-2:0.12.1.2-2.160.el6"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux Extended Update Support 6.0",
    "fix_state" : "Affected",
    "package_name" : "qemu-kvm",
    "cpe" : "cpe:/o:redhat:rhel_eus:6.0"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2011-1751\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-1751" ],
  "name" : "CVE-2011-1751",
  "csaw" : false
}