{
  "threat_severity" : "Moderate",
  "public_date" : "2013-07-01T00:00:00Z",
  "bugzilla" : {
    "description" : "Kernel: net: panic while appending data to a corked IPv6 socket in ip6_append_data_mtu",
    "id" : "987633",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=987633"
  },
  "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 ip6_append_data_mtu function in net/ipv6/ip6_output.c in the IPv6 implementation in the Linux kernel through 3.10.3 does not properly maintain information about whether the IPV6_MTU setsockopt option had been specified, which allows local users to cause a denial of service (BUG and system crash) via a crafted application that uses the UDP_CORK option in a setsockopt system call." ],
  "statement" : "This issue does not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise Linux 6.\nThis issue affects the version of the kernel package as shipped with Red Hat Enterprise MRG 2. Future kernel updates for Red Hat Enterprise MRG 2 may address this issue.",
  "acknowledgement" : "Red Hat would like to thank Hannes Frederic Sowa for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise MRG 2",
    "release_date" : "2013-09-16T00:00:00Z",
    "advisory" : "RHSA-2013:1264",
    "cpe" : "cpe:/a:redhat:enterprise_mrg:2:server:el6",
    "package" : "kernel-rt-0:3.6.11.5-rt37.55.el6rt"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2013-4163\nhttps://nvd.nist.gov/vuln/detail/CVE-2013-4163" ],
  "name" : "CVE-2013-4163",
  "csaw" : false
}