RHEL 6 : kernel-rt (RHSA-2012:1150)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2012:1150. The text 
# itself is copyright (C) Red Hat, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(76645);
  script_version("1.17");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/03");

  script_cve_id("CVE-2012-2390", "CVE-2012-3375");
  script_bugtraq_id(53668, 54283);
  script_xref(name:"RHSA", value:"2012:1150");

  script_name(english:"RHEL 6 : kernel-rt (RHSA-2012:1150)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates for kernel-rt.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2012:1150 advisory.

    The kernel-rt packages contain the Linux kernel, the core of any Linux
    operating system.

    This update fixes the following security issues:

    * A memory leak flaw was found in the way the Linux kernel's memory
    subsystem handled resource clean up in the mmap() failure path when the
    MAP_HUGETLB flag was set. A local, unprivileged user could use this flaw to
    cause a denial of service. (CVE-2012-2390, Moderate)

    * A flaw was found in the way the Linux kernel's Event Poll (epoll)
    subsystem handled resource clean up when an ELOOP error code was returned.
    A local, unprivileged user could use this flaw to cause a denial of
    service. (CVE-2012-3375, Moderate)

    This update also fixes the following bugs:

    * The MRG 2.1 realtime kernel lacked support for automatic memory
    reservation for the kdump kernel, as present in Red Hat Enterprise Linux
    kernels. Using the parameter crashkernel=auto on the kernel boot command
    line led to kdump being disabled because no memory was correctly reserved.
    Support for crashkernel=auto has been implemented in the 3.0 realtime
    kernel and now when the crashkernel=auto parameter is specified, machines
    with more than 4GB of RAM have the amount of memory required by the kdump
    kernel calculated and reserved. (BZ#820427)

    * The current bnx2x driver in the MRG 2.1 realtime kernel had faulty
    support for the network adapter PCI ID 14e4:168e and did not work
    correctly. The bnx2x driver was updated to include support for this network
    adapter. (BZ#839037)

    Users should upgrade to these updated packages, which upgrade the kernel-rt
    kernel to version kernel-rt-3.0.36-rt57, and correct these issues. The
    system must be rebooted for this update to take effect.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://access.redhat.com/security/data/csaf/v2/advisories/2012/rhsa-2012_1150.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3b4a5efe");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2012:1150");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#moderate");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=824345");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=837502");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL kernel-rt package based on the guidance in RHSA-2012:1150.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2012-3375");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2012-2390");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(401);
  script_set_attribute(attribute:"vendor_severity", value:"Moderate");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/06/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/08/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/07/22");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-firmware");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-vanilla");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-vanilla-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Red Hat Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2014-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl", "linux_alt_patch_detect.nasl", "redhat_repos.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include('rpm.inc');
include('rhel.inc');
include('ksplice.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Red Hat' >!< os_release) audit(AUDIT_OS_NOT, 'Red Hat');
var os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '6')) audit(AUDIT_OS_NOT, 'Red Hat 6.x', 'Red Hat ' + os_ver);

if (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);

if (get_one_kb_item('Host/ksplice/kernel-cves'))
{
  rm_kb_item(name:'Host/uptrack-uname-r');
  var cve_list = make_list('CVE-2012-2390', 'CVE-2012-3375');
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for RHSA-2012:1150');
  }
  else
  {
    __rpm_report = ksplice_reporting_text();
  }
}

var constraints = [
  {
    'repo_relative_urls': [
      'content/dist/rhel/server/6/6Server/x86_64/mrg-g-execute/2/debug',
      'content/dist/rhel/server/6/6Server/x86_64/mrg-g-execute/2/os',
      'content/dist/rhel/server/6/6Server/x86_64/mrg-g-execute/2/source/SRPMS',
      'content/dist/rhel/server/6/6Server/x86_64/mrg-g/2/debug',
      'content/dist/rhel/server/6/6Server/x86_64/mrg-g/2/os',
      'content/dist/rhel/server/6/6Server/x86_64/mrg-g/2/source/SRPMS',
      'content/dist/rhel/server/6/6Server/x86_64/mrg-m/2/debug',
      'content/dist/rhel/server/6/6Server/x86_64/mrg-m/2/os',
      'content/dist/rhel/server/6/6Server/x86_64/mrg-m/2/source/SRPMS',
      'content/dist/rhel/server/6/6Server/x86_64/mrg-mgmt/2/debug',
      'content/dist/rhel/server/6/6Server/x86_64/mrg-mgmt/2/os',
      'content/dist/rhel/server/6/6Server/x86_64/mrg-mgmt/2/source/SRPMS',
      'content/dist/rhel/server/6/6Server/x86_64/mrg-r/2/debug',
      'content/dist/rhel/server/6/6Server/x86_64/mrg-r/2/os',
      'content/dist/rhel/server/6/6Server/x86_64/mrg-r/2/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'kernel-rt-3.0.36-rt57.66.el6rt', 'cpu':'x86_64', 'release':'6', 'el_string':'el6rt', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'mrg-release'},
      {'reference':'kernel-rt-debug-3.0.36-rt57.66.el6rt', 'cpu':'x86_64', 'release':'6', 'el_string':'el6rt', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'mrg-release'},
      {'reference':'kernel-rt-debug-devel-3.0.36-rt57.66.el6rt', 'cpu':'x86_64', 'release':'6', 'el_string':'el6rt', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'mrg-release'},
      {'reference':'kernel-rt-devel-3.0.36-rt57.66.el6rt', 'cpu':'x86_64', 'release':'6', 'el_string':'el6rt', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'mrg-release'},
      {'reference':'kernel-rt-doc-3.0.36-rt57.66.el6rt', 'release':'6', 'el_string':'el6rt', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'mrg-release'},
      {'reference':'kernel-rt-firmware-3.0.36-rt57.66.el6rt', 'release':'6', 'el_string':'el6rt', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'mrg-release'},
      {'reference':'kernel-rt-trace-3.0.36-rt57.66.el6rt', 'cpu':'x86_64', 'release':'6', 'el_string':'el6rt', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'mrg-release'},
      {'reference':'kernel-rt-trace-devel-3.0.36-rt57.66.el6rt', 'cpu':'x86_64', 'release':'6', 'el_string':'el6rt', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'mrg-release'},
      {'reference':'kernel-rt-vanilla-3.0.36-rt57.66.el6rt', 'cpu':'x86_64', 'release':'6', 'el_string':'el6rt', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'mrg-release'},
      {'reference':'kernel-rt-vanilla-devel-3.0.36-rt57.66.el6rt', 'cpu':'x86_64', 'release':'6', 'el_string':'el6rt', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'mrg-release'}
    ]
  }
];

var applicable_repo_urls = rhel_determine_applicable_repository_urls(constraints:constraints);
if(applicable_repo_urls == RHEL_REPOS_NO_OVERLAP_MESSAGE) exit(0, RHEL_REPO_NOT_ENABLED);

var flag = 0;
foreach var constraint_array ( constraints ) {
  var repo_relative_urls = NULL;
  if (!empty_or_null(constraint_array['repo_relative_urls'])) repo_relative_urls = constraint_array['repo_relative_urls'];
  foreach var pkg ( constraint_array['pkgs'] ) {
    var reference = NULL;
    var _release = NULL;
    var sp = NULL;
    var _cpu = NULL;
    var el_string = NULL;
    var rpm_spec_vers_cmp = NULL;
    var epoch = NULL;
    var allowmaj = NULL;
    var exists_check = NULL;
    var cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];
    if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
    if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
    if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
    if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
    if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
    if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
    if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
    if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
    if (reference &&
        _release &&
        rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&
        (applicable_repo_urls || (!exists_check || rpm_exists(release:_release, rpm:exists_check))) &&
        rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj, cves:cves)) flag++;
  }
}

if (flag)
{
  var extra = NULL;
  if (isnull(applicable_repo_urls) || !applicable_repo_urls) extra = rpm_report_get() + redhat_report_repo_caveat();
  else extra = rpm_report_get();
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : extra
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'kernel-rt / kernel-rt-debug / kernel-rt-debug-devel / etc');
}