MiracleLinux 4 : kernel-2.6.32-642.13.1.el6 (AXSA:2017-1275:01)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# Miracle Linux Security Advisory AXSA:2017-1275:01.
##

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

if (description)
{
  script_id(289905);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/02/09");

  script_cve_id("CVE-2016-4998", "CVE-2016-6828", "CVE-2016-7117");

  script_name(english:"MiracleLinux 4 : kernel-2.6.32-642.13.1.el6 (AXSA:2017-1275:01)");

  script_set_attribute(attribute:"synopsis", value:
"The remote MiracleLinux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote MiracleLinux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the
AXSA:2017-1275:01 advisory.

    The kernel package contains the Linux kernel (vmlinuz), the core of any
    Linux operating system.  The kernel handles the basic functions
    of the operating system: memory allocation, process allocation, device
    input and output, etc.
    Security issues fixed with this release:
    CVE-2016-4998
    The IPT_SO_SET_REPLACE setsockopt implementation in the netfilter
    subsystem in the Linux kernel before 4.6 allows local users to cause a
    denial of service (out-of-bounds read) or possibly obtain sensitive
    information from kernel heap memory by leveraging in-container root
    access to provide a crafted offset value that leads to crossing a
    ruleset blob boundary.
    CVE-2016-6828
    The tcp_check_send_head function in include/net/tcp.h in the Linux
    kernel before 4.7.5 does not properly maintain certain SACK state
    after a failed data copy, which allows local users to cause a denial
    of service (tcp_xmit_retransmit_queue use-after-free and system crash)
    via a crafted SACK option.
    CVE-2016-7117
    Use-after-free vulnerability in the __sys_recvmmsg function in
    net/socket.c in the Linux kernel before 4.5.2 allows remote attackers
    to execute arbitrary code via vectors involving a recvmmsg system call
    that is mishandled during error processing.
    Fixed bugs:
    * When parallel NFS returned a file layout, a kernel crash sometimes occurred. This update removes the
    call to the BUG_ON() function from a code path of a client that returns the file layout. As a result, the
    kernel no longer crashes in the described situation.
    * When a guest virtual machine (VM) on Microsoft Hyper-V was set to crash on a Nonmaskable Interrupt (NMI)
    that was injected from the host, this VM became unresponsive and did not create the vmcore dump file. This
    update applies a set of patches to the Virtual Machine Bus kernel driver (hv_vmbus) that fix this bug. As
    a result, the VM now first creates and saves the vmcore dump file and then reboots.
    * From Asianux Server 4.6 to 6.8, the IPv6 routing cache occasionally showed incorrect values. This update
    fixes the DST_NOCOUNT mechanism, and the IPv6 routing cache now shows correct values.
    * When using the ixgbe driver and the software Fibre Channel over Ethernet (FCoE) stack, suboptimal
    performance in some cases occurred on systems with a large number of CPUs. This update fixes the
    fc_exch_alloc() function to try all the available exchange managers in the list for an available exchange
    ID. This change avoids failing allocations, which previously led to the host busy status.
    * When the vmwgfx kernel module loads, it overrides the boot resolution automatically. Consequently, users
    were not able to change the resolution by manual setting of the kernel's 'vga=' parameter in the
    /boot/grub/grub.conf file. This update adds the 'nomodeset' parameter, which can be set in the
    /boot/grub/grub.conf file. The 'nomodeset' parameter allows the users to prevent the vmwgfx driver from
    loading. As a result, the setting of the 'vga=' parameter works as expected, in case that vmwgfx does not
    load.
    * When Asianux Server 4.8 was booted on SMBIOS 3.0 based systems, Desktop Management Interface (DMI)
    information, which is referenced by several applications, such as NEC server's memory RAS utility, was
    missing entries in the sysfs virtual file system. This update fixes the underlying source code, and sysfs
    now shows the DMI information as expected.
    * Previously, bonding mode active backup and the propagation of the media access control (MAC) address to
    a VLAN interface did not work in Asianux Server 4.8, when the fail_over_mac bonding parameter was set to
    fail_over_mac=active. With this update, the underlying source code has been fixed so that the VLANs
    continue inheriting the MAC address of the active physical interface until the VLAN MAC address is
    explicitly set to any value. As a result, IPv6 EUI64 addresses for the VLAN can reflect any changes to the
    MAC address of the physical interface, and Duplicate Address Detection (DAD) behaves as expected.

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://tsn.miraclelinux.com/en/node/7707");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-7117");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Linux Kernel 4.6.3 Netfilter Privilege Escalation');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"vendor_severity", value:"High");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/03/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/01/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/01/16");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:kernel-abi-whitelists");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:kernel-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:kernel-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:kernel-firmware");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:kernel-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:perf");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:miracle:linux:4");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Miracle Linux Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include('rpm2.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_product = get_kb_item('installed_os/local/SSH/0/product');
if (isnull(os_product) || 'MIRACLE LINUX' >!< os_product) audit(AUDIT_OS_NOT, 'MIRACLE LINUX');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'MIRACLE LINUX');
if (! preg(pattern:"^4([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'MiracleLinux 4.x', 'MIRACLE LINUX ' + os_version);

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

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

var constraints = [
  {
    'release': '4',
    'pkgs': [
      {'reference':'kernel-2.6.32-642.13.1.el6', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'kernel-2.6.32-642.13.1.el6', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'kernel-abi-whitelists-2.6.32-642.13.1.el6', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'kernel-debug-2.6.32-642.13.1.el6', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'kernel-debug-2.6.32-642.13.1.el6', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'kernel-debug-devel-2.6.32-642.13.1.el6', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'kernel-debug-devel-2.6.32-642.13.1.el6', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'kernel-devel-2.6.32-642.13.1.el6', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'kernel-devel-2.6.32-642.13.1.el6', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'kernel-firmware-2.6.32-642.13.1.el6', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'kernel-headers-2.6.32-642.13.1.el6', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'kernel-headers-2.6.32-642.13.1.el6', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'perf-2.6.32-642.13.1.el6', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'perf-2.6.32-642.13.1.el6', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'}
    ]
  }
];

var os_release = get_one_kb_item('installed_os/local/SSH/0/release');
var os_sp = get_one_kb_item('Host/*/minor_release');

var flag = 0;
var reference;
var sp;
var _cpu;
var el_string;
var rpm_spec_vers_cmp;
var epoch;
var allowmaj;
var exists_check;
var cves;
foreach var constraint ( constraints ) {
  # Check that the target release is equal to the affected release
  if (!empty_or_null(constraint['release'])){
    if (constraint['release'] != os_release) continue;
  }
  if (!empty_or_null(constraint['sp'])){
    if (constraint['sp'] != os_sp) continue;
  }
  foreach var pkg ( constraint['pkgs'] ) {
    reference = NULL;
    sp = NULL;
    _cpu = NULL;
    el_string = NULL;
    rpm_spec_vers_cmp = NULL;
    epoch = NULL;
    allowmaj = NULL;
    exists_check = NULL;
    cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    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 &&
        ## (no known rpm to check OR known rpm_exists)
        (!exists_check || rpm_exists(rpm:exists_check)) &&
        rpm_check(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)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'kernel / kernel-abi-whitelists / kernel-debug / kernel-debug-devel / etc');
}