{
  "threat_severity" : "Moderate",
  "public_date" : "2011-10-20T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: crypto: ghash: null pointer deref if no key is set",
    "id" : "749475",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=749475"
  },
  "cvss" : {
    "cvss_base_score" : "4.9",
    "cvss_scoring_vector" : "AV:L/AC:L/Au:N/C:N/I:N/A:C",
    "status" : "verified"
  },
  "cwe" : "CWE-476",
  "details" : [ "crypto/ghash-generic.c in the Linux kernel before 3.1 allows local users to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact by triggering a failed or missing ghash_setkey function call, followed by a (1) ghash_update function call or (2) ghash_final function call, as demonstrated by a write operation on an AF_ALG socket." ],
  "statement" : "This issue did not affect the Linux kernels as shipped with Red Hat Enterprise Linux 4, and 5 as they did not include support for the GHASH message digest algorithm. This has been addressed in Red Hat Enterprise Linux 6, and MRG via https://rhn.redhat.com/errata/RHSA-2012-0350.html, and https://rhn.redhat.com/errata/RHSA-2012-0010.html.",
  "acknowledgement" : "Red Hat would like to thank Nick Bowler for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "release_date" : "2012-03-06T00:00:00Z",
    "advisory" : "RHSA-2012:0350",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6",
    "package" : "kernel-0:2.6.32-220.7.1.el6"
  }, {
    "product_name" : "Red Hat Enterprise MRG 2",
    "release_date" : "2012-01-10T00:00:00Z",
    "advisory" : "RHSA-2012:0010",
    "cpe" : "cpe:/a:redhat:enterprise_mrg:2:server:el6",
    "package" : "kernel-rt-0:2.6.33.9-rt31.79.el6rt"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2011-4081\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-4081" ],
  "name" : "CVE-2011-4081",
  "csaw" : false
}