{
  "threat_severity" : "Moderate",
  "public_date" : "2012-07-20T00:00:00Z",
  "bugzilla" : {
    "description" : "Kernel: futex: forbid uaddr == uaddr2 in futex_wait_requeue_pi()",
    "id" : "1097746",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1097746"
  },
  "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 futex_wait_requeue_pi function in kernel/futex.c in the Linux kernel before 3.5.1 does not ensure that calls have two different futex addresses, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted FUTEX_WAIT_REQUEUE_PI command.", "A NULL pointer dereference flaw was found in the way the futex_wait_requeue_pi() function of the Linux kernel's futex subsystem handled the requeuing of certain Priority Inheritance (PI) futexes. A local, unprivileged user could use this flaw to crash the system." ],
  "statement" : "This issue does not affect the versions of the kernel package as shipped with\nRed Hat Enterprise Linux 5 and 7, and Red Hat Enterprise MRG 2.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "release_date" : "2014-07-29T00:00:00Z",
    "advisory" : "RHSA-2014:0981",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6",
    "package" : "kernel-0:2.6.32-431.23.3.el6"
  } ],
  "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 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "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-2012-6647\nhttps://nvd.nist.gov/vuln/detail/CVE-2012-6647" ],
  "name" : "CVE-2012-6647",
  "csaw" : false
}