{
  "threat_severity" : "Important",
  "public_date" : "2011-05-31T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: rpc task leak after flock()ing  NFS share",
    "id" : "709393",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=709393"
  },
  "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 Network Lock Manager (NLM) protocol implementation in the NFS client functionality in the Linux kernel before 3.0 allows local users to cause a denial of service (system hang) via a LOCK_UN flock system call." ],
  "acknowledgement" : "Red Hat would like to thank Vasily Averin for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "release_date" : "2011-09-06T00:00:00Z",
    "advisory" : "RHSA-2011:1212",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5",
    "package" : "kernel-0:2.6.18-274.3.1.el5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 5.6 EUS - Server Only",
    "release_date" : "2011-12-13T00:00:00Z",
    "advisory" : "RHSA-2011:1813",
    "cpe" : "cpe:/o:redhat:rhel_eus:5.6",
    "package" : "kernel-0:2.6.18-238.31.1.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"
  }, {
    "product_name" : "Red Hat Enterprise MRG 2",
    "release_date" : "2011-09-12T00:00:00Z",
    "advisory" : "RHSA-2011:1253",
    "cpe" : "cpe:/a:redhat:enterprise_mrg:2:server:el6",
    "package" : "kernel-rt-0:2.6.33.9-rt31.75.el6rt"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise MRG 1",
    "fix_state" : "Affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/a:redhat:enterprise_mrg:1"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2011-2491\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-2491" ],
  "name" : "CVE-2011-2491",
  "csaw" : false
}