{
  "threat_severity" : "Moderate",
  "public_date" : "2008-01-18T00:00:00Z",
  "bugzilla" : {
    "description" : "xen: request-processing loop is unbounded in blkback",
    "id" : "656206",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=656206"
  },
  "cvss" : {
    "cvss_base_score" : "5.5",
    "cvss_scoring_vector" : "AV:A/AC:L/Au:S/C:N/I:N/A:C",
    "status" : "verified"
  },
  "details" : [ "The do_block_io_op function in (1) drivers/xen/blkback/blkback.c and (2) drivers/xen/blktap/blktap.c in Xen before 3.4.0 for the Linux kernel 2.6.18, and possibly other versions, allows guest OS users to cause a denial of service (infinite loop and CPU consumption) via a large production request index to the blkback or blktap back-end drivers.  NOTE: some of these details are obtained from third party information." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "release_date" : "2011-01-04T00:00:00Z",
    "advisory" : "RHSA-2011:0004",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5",
    "package" : "kernel-0:2.6.18-194.32.1.el5"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2010-4247\nhttps://nvd.nist.gov/vuln/detail/CVE-2010-4247" ],
  "name" : "CVE-2010-4247",
  "csaw" : false
}