{
  "threat_severity" : "Important",
  "public_date" : "2011-07-20T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: ipv6: make fragment identifications less predictable",
    "id" : "723429",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=723429"
  },
  "cvss" : {
    "cvss_base_score" : "7.1",
    "cvss_scoring_vector" : "AV:N/AC:M/Au:N/C:N/I:N/A:C",
    "status" : "verified"
  },
  "details" : [ "The IPv6 implementation in the Linux kernel before 3.1 does not generate Fragment Identification values separately for each destination, which makes it easier for remote attackers to cause a denial of service (disrupted networking) by predicting these values and sending crafted packets." ],
  "statement" : "This issue did not affect the Linux kernel as shipped with Red Hat Enterprise MRG as it has backported the fix that addresses this issue. Red Hat Enterprise Linux 4 is now in Production 3 of the maintenance life-cycle, https://access.redhat.com/support/policy/updates/errata/, therefore the fix for this issue is not currently planned to be included in the future updates. This has been addressed in Red Hat Enterprise Linux 5 and 6 via https://rhn.redhat.com/errata/RHSA-2011-1386.html and https://rhn.redhat.com/errata/RHSA-2011-1465.html.",
  "acknowledgement" : "Red Hat would like to thank Fernando Gont for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "release_date" : "2011-10-20T00:00:00Z",
    "advisory" : "RHSA-2011:1386",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5",
    "package" : "kernel-0:2.6.18-274.7.1.el5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 5.6 EUS - Server Only",
    "release_date" : "2012-03-06T00:00:00Z",
    "advisory" : "RHSA-2012:0358",
    "cpe" : "cpe:/o:redhat:rhel_eus:5.6",
    "package" : "kernel-0:2.6.18-238.35.1.el5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "release_date" : "2011-11-22T00:00:00Z",
    "advisory" : "RHSA-2011:1465",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6",
    "package" : "kernel-0:2.6.32-131.21.1.el6"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 4",
    "fix_state" : "Will not fix",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:4"
  }, {
    "product_name" : "Red Hat Enterprise MRG 2",
    "fix_state" : "Affected",
    "package_name" : "realtime-kernel",
    "cpe" : "cpe:/a:redhat:enterprise_mrg:2"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2011-2699\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-2699" ],
  "name" : "CVE-2011-2699",
  "csaw" : false
}