{
  "threat_severity" : "Moderate",
  "public_date" : "2010-11-13T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: local privilege escalation via /sys/kernel/debug/acpi/custom_method",
    "id" : "663542",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=663542"
  },
  "cvss" : {
    "cvss_base_score" : "6.9",
    "cvss_scoring_vector" : "AV:L/AC:M/Au:N/C:C/I:C/A:C",
    "status" : "verified"
  },
  "details" : [ "The ACPI subsystem in the Linux kernel before 2.6.36.2 uses 0222 permissions for the debugfs custom_method file, which allows local users to gain privileges by placing a custom ACPI method in the ACPI interpreter tables, related to the acpi_debugfs_init function in drivers/acpi/debugfs.c." ],
  "statement" : "This issue did not affect the version of Linux kernel as shipped with Red Hat\nEnterprise Linux 4, 5, and 6 as they did not include upstream commit a1a541d8 and a25ee920 that introduced the problem. This has been addressed in Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-0330.html.\nNotes:\nThis requires debugfs to be mounted on a local system in order to have access to the custom_method file. Debugfs is not mounted by default. You need to run \"mount -t debugfs nodev /sys/kernel/debug\" as root first.",
  "affected_release" : [ {
    "product_name" : "MRG for RHEL-5",
    "release_date" : "2011-03-10T00:00:00Z",
    "advisory" : "RHSA-2011:0330",
    "cpe" : "cpe:/a:redhat:enterprise_mrg:1::el5",
    "package" : "kernel-rt-0:2.6.33.7-rt29.55.el5rt"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2010-4347\nhttps://nvd.nist.gov/vuln/detail/CVE-2010-4347" ],
  "name" : "CVE-2010-4347",
  "csaw" : false
}