{
  "threat_severity" : "Important",
  "public_date" : "2010-03-16T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: 32bit process on 64bit system can trigger a kernel panic",
    "id" : "548876",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=548876"
  },
  "cvss" : {
    "cvss_base_score" : "4.9",
    "cvss_scoring_vector" : "AV:L/AC:L/Au:N/C:N/I:N/A:C",
    "status" : "verified"
  },
  "details" : [ "The Linux kernel 2.6.9 through 2.6.17 on the x86_64 and amd64 platforms allows local users to cause a denial of service (panic) via a 32-bit application that calls mprotect on its Virtual Dynamic Shared Object (VDSO) page and then triggers a segmentation fault." ],
  "statement" : "This security issue did not affect the Linux kernels as shipped with Red Hat Enterprise Linux 3, 5 and Red Hat Enterprise MRG.",
  "acknowledgement" : "Red Hat would like to thank STMicroelectronics for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 4",
    "release_date" : "2010-03-17T00:00:00Z",
    "advisory" : "RHSA-2010:0146",
    "cpe" : "cpe:/o:redhat:enterprise_linux:4",
    "package" : "kernel-0:2.6.9-89.0.23.EL"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2009-4271\nhttps://nvd.nist.gov/vuln/detail/CVE-2009-4271" ],
  "name" : "CVE-2009-4271",
  "csaw" : false
}