{
  "threat_severity" : "Moderate",
  "public_date" : "2009-12-17T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: tty->pgrp races",
    "id" : "559100",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=559100"
  },
  "cvss" : {
    "cvss_base_score" : "4.9",
    "cvss_scoring_vector" : "AV:L/AC:L/Au:N/C:N/I:N/A:C",
    "status" : "verified"
  },
  "details" : [ "Race condition in the tty_fasync function in drivers/char/tty_io.c in the Linux kernel before 2.6.32.6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via unknown vectors, related to the put_tty_queue and __f_setown functions.  NOTE: the vulnerability was addressed in a different way in 2.6.32.9." ],
  "statement" : "This issue did not affect the version of Linux kernel as shipped with Red Hat\nEnterprise Linux 3, 4 and 5. This issue was addressed in Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2010-0161.html.",
  "affected_release" : [ {
    "product_name" : "MRG for RHEL-5",
    "release_date" : "2010-03-23T00:00:00Z",
    "advisory" : "RHSA-2010:0161",
    "cpe" : "cpe:/a:redhat:enterprise_mrg:1::el5",
    "package" : "kernel-rt-0:2.6.24.7-149.el5rt"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2009-4895\nhttps://nvd.nist.gov/vuln/detail/CVE-2009-4895" ],
  "name" : "CVE-2009-4895",
  "csaw" : false
}