{
  "threat_severity" : "Moderate",
  "public_date" : "2011-04-26T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: gfs2: make sure fallocate bytes is a multiple of blksize",
    "id" : "720861",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=720861"
  },
  "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 gfs2_fallocate function in fs/gfs2/file.c in the Linux kernel before 3.0-rc1 does not ensure that the size of a chunk allocation is a multiple of the block size, which allows local users to cause a denial of service (BUG and system crash) by arranging for all resource groups to have too little free space." ],
  "statement" : "This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 4 and Red Hat Enterprise MRG as they did not provide support for the Global File System 2 (GFS2). This has been addressed in Red Hat Enterprise Linux 5 and 6 via https://rhn.redhat.com/errata/RHSA-2011-1065.html and https://rhn.redhat.com/errata/RHSA-2011-1189.html.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "release_date" : "2011-07-21T00:00:00Z",
    "advisory" : "RHSA-2011:1065",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5",
    "package" : "kernel-0:2.6.18-274.el5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "release_date" : "2011-08-23T00:00:00Z",
    "advisory" : "RHSA-2011:1189",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6",
    "package" : "kernel-0:2.6.32-131.12.1.el6"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 4",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:4"
  }, {
    "product_name" : "Red Hat Enterprise MRG 2",
    "fix_state" : "Not affected",
    "package_name" : "realtime-kernel",
    "cpe" : "cpe:/a:redhat:enterprise_mrg:2"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2011-2689\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-2689" ],
  "name" : "CVE-2011-2689",
  "csaw" : false
}