Vulnerabilities > CVE-2016-7245 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Microsoft Office

047910
CVSS 7.8 - HIGH
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
local
low complexity
microsoft
CWE-119
nessus
NVD
Published: 2016-11-10
Updated: 2024-11-21

Summary

Microsoft Office 2007 SP3, Office 2010 SP2, Office 2013 SP1, Office 2013 RT SP1, and Office 2016 allow remote attackers to execute arbitrary code via a crafted Office document, aka "Microsoft Office Memory Corruption Vulnerability."

Vulnerable Configurations

Part Description Count
Application
Microsoft
4

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Msbulletin

bulletin_idMS16-133
bulletin_url
date2016-11-08T00:00:00
impactRemote Code Execution
knowledgebase_id3199168
knowledgebase_url
severityImportant
titleSecurity Update for Microsoft Office

Nessus

NASL familyWindows : Microsoft Bulletins
NASL idSMB_NT_MS16-133.NASL
descriptionThe Microsoft Office application installed on the remote Windows host is missing a security update. It is, therefore, affected by multiple vulnerabilities : - Multiple remote code execution vulnerabilities exist due to improper handling of objects in memory. An unauthenticated, remote attacker can exploit these by convincing a user to visit a specially crafted website or open a specially crafted Office file, resulting in the execution of arbitrary code in the context of the current user. (CVE-2016-7213, CVE-2016-7228, CVE-2016-7229, CVE-2016-7230, CVE-2016-7231, CVE-2016-7232, CVE-2016-7234, CVE-2016-7235, CVE-2016-7236, CVE-2016-7245) - An information disclosure vulnerability exists due to an out-of-bounds read error caused by an uninitialized variable. An unauthenticated, remote attacker can exploit this by convincing a user to open a specially crafted Office file, resulting in the disclosure of memory contents. (CVE-2016-7233) - A denial of service vulnerability exists due to improper handling of objects in memory. An unauthenticated, remote attacker can exploit this by convincing a user to open a specially crafted file, resulting in a crash of the application. (CVE-2016-7244)
last seen2020-06-01
modified2020-06-02
plugin id94634
published2016-11-08
reporterThis script is Copyright (C) 2016-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/94634
titleMS16-133: Security Update for Microsoft Office (3199168)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(94634);
  script_version("1.7");
  script_cvs_date("Date: 2018/07/30 15:31:34");

  script_cve_id(
    "CVE-2016-7213",
    "CVE-2016-7228",
    "CVE-2016-7229",
    "CVE-2016-7230",
    "CVE-2016-7231",
    "CVE-2016-7232",
    "CVE-2016-7233",
    "CVE-2016-7234",
    "CVE-2016-7235",
    "CVE-2016-7236",
    "CVE-2016-7244",
    "CVE-2016-7245"
  );
  script_bugtraq_id(
    93993,
    93994,
    93995,
    93996,
    94005,
    94006,
    94020,
    94022,
    94025,
    94026,
    94029,
    94031
  );
  script_xref(name:"MSFT", value:"MS16-133");
  script_xref(name:"MSKB", value:"2986253");
  script_xref(name:"MSKB", value:"3115120");
  script_xref(name:"MSKB", value:"3115135");
  script_xref(name:"MSKB", value:"3115153");
  script_xref(name:"MSKB", value:"3118378");
  script_xref(name:"MSKB", value:"3118381");
  script_xref(name:"MSKB", value:"3118382");
  script_xref(name:"MSKB", value:"3118390");
  script_xref(name:"MSKB", value:"3118395");
  script_xref(name:"MSKB", value:"3118396");
  script_xref(name:"MSKB", value:"3127889");
  script_xref(name:"MSKB", value:"3127893");
  script_xref(name:"MSKB", value:"3127904");
  script_xref(name:"MSKB", value:"3127921");
  script_xref(name:"MSKB", value:"3127927");
  script_xref(name:"MSKB", value:"3127929");
  script_xref(name:"MSKB", value:"3127932");
  script_xref(name:"MSKB", value:"3127948");
  script_xref(name:"MSKB", value:"3127949");
  script_xref(name:"MSKB", value:"3127950");
  script_xref(name:"MSKB", value:"3127951");
  script_xref(name:"MSKB", value:"3127953");
  script_xref(name:"MSKB", value:"3127954");
  script_xref(name:"MSKB", value:"3127962");
  script_xref(name:"IAVA", value:"2016-A-0319");

  script_name(english:"MS16-133: Security Update for Microsoft Office (3199168)");
  script_summary(english:"Checks the file versions.");

  script_set_attribute(attribute:"synopsis",value:
"An application installed on the remote host is affected by multiple
vulnerabilities.");
  script_set_attribute(attribute:"description",value:
"The Microsoft Office application installed on the remote Windows host
is missing a security update. It is, therefore, affected by multiple
vulnerabilities :

  - Multiple remote code execution vulnerabilities exist
    due to improper handling of objects in memory. An
    unauthenticated, remote attacker can exploit these by
    convincing a user to visit a specially crafted website
    or open a specially crafted Office file, resulting in
    the execution of arbitrary code in the context of the
    current user. (CVE-2016-7213, CVE-2016-7228,
    CVE-2016-7229, CVE-2016-7230, CVE-2016-7231,
    CVE-2016-7232, CVE-2016-7234, CVE-2016-7235,
    CVE-2016-7236, CVE-2016-7245)

  - An information disclosure vulnerability exists due to an
    out-of-bounds read error caused by an uninitialized
    variable. An unauthenticated, remote attacker can exploit
    this by convincing a user to open a specially crafted
    Office file, resulting in the disclosure of memory
    contents. (CVE-2016-7233)

  - A denial of service vulnerability exists due to improper
    handling of objects in memory. An unauthenticated,
    remote attacker can exploit this by convincing a user to
    open a specially crafted file, resulting in a crash of
    the application. (CVE-2016-7244)");
  script_set_attribute(attribute:"see_also",value:"https://technet.microsoft.com/library/security/MS16-133");
  script_set_attribute(attribute:"solution",value:
"Microsoft has released a set of patches for Microsoft Office 2007,
2010, 2013, 2013 RT, and 2016; Microsoft Excel 2007, 2010, 2013,
2013 RT, and 2016; Microsoft PowerPoint 2010; Microsoft Word 2007,
2010, 2013, and 2013 RT; Office Compatibility Pack; Excel Viewer;
PowerPoint Viewer; Word Viewer; Microsoft SharePoint Server 2010 and
2013; and Office Web Apps 2010 and 2013");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"vuln_publication_date",value:"2016/11/08");
  script_set_attribute(attribute:"patch_publication_date",value:"2016/11/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/11/08");

  script_set_attribute(attribute:"plugin_type",value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:excel");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:excel_viewer");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:word_viewer");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:powerpoint_viewer");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:powerpoint");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office_web_apps");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:sharepoint_server");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows : Microsoft Bulletins");

  script_copyright(english:"This script is Copyright (C) 2016-2018 Tenable Network Security, Inc.");

  script_dependencies(
    "office_installed.nasl",
    "microsoft_owa_installed.nbin",
    "microsoft_sharepoint_installed.nbin",
    "smb_hotfixes.nasl",
    "ms_bulletin_checks_possible.nasl"
  );
  script_require_keys("SMB/MS_Bulletin_Checks/Possible");
  script_require_ports(139, 445, "Host/patch_management_checks");

  exit(0);
}

include("audit.inc");
include("smb_func.inc");
include("smb_hotfixes.inc");
include("smb_hotfixes_fcheck.inc");
include("smb_reg_query.inc");
include("misc_func.inc");
include("install_func.inc");

global_var bulletin, vuln;

get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

bulletin = 'MS16-133';
kbs = make_list(
  '2986253', # Office 2007 SP3
  '3115120', # Office 2010 SP2
  '3115135', # Office 2016
  '3115153', # Office 2013 SP1
  '3118378', # PowerPoint 2010 SP2
  '3118381', # SharePoint Excel Services 2010 SP2
  '3118382', # PowerPoint Viewer
  '3118390', # Excel 2010 SP2
  '3118395', # Excel 2007 SP3
  '3118396', # Office 2007 SP3
  '3127889', # Office Compatibility Pack SP3
  '3127893', # Excel Viewer
  '3127904', # Excel 2016
  '3127921', # Excel 2013 SP1
  '3127927', # SharePoint Word Automation Services 2013 SP1 
  '3127929', # Office Web Apps Server 2013 SP1
  '3127932', # Word 2013 SP1
  '3127948', # Office Compatibility Pack SP3
  '3127949', # Word 2007
  '3127950', # SharePoint Word Automation Services 2010 SP2
  '3127951', # Office 2010 SP2
  '3127953', # Word 2010 SP2
  '3127954', # Office Web Apps Server 2010 SP2
  '3127962' # Word Viewer
);

if (get_kb_item("Host/patch_management_checks")) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);

get_kb_item_or_exit("SMB/Registry/Enumerated", exit_code:1);

# Get path information for Windows.
windir = hotfix_get_systemroot();
if (isnull(windir)) exit(1, "Failed to determine the location of %windir%.");

registry_init();

vuln = FALSE;

######################################################################
# Office Web Apps
######################################################################
function perform_owa_checks()
{
  local_var owa_installs, owa_install;
  local_var owa_2010_path, owa_2010_sp;
  local_var owa_2013_path, owa_2013_sp;
  local_var path;

  # Get installs of Office Web Apps
  owa_installs = get_installs(app_name:"Microsoft Office Web Apps");
  if (!empty_or_null(owa_installs))
  {
    foreach owa_install (owa_installs[1])
    {
      if (owa_install["Product"] == "2010")
      {
        owa_2010_path = owa_install["path"];
        owa_2010_sp = owa_install["SP"];
      }
      else if (owa_install['Product'] == "2013")
      {
        owa_2013_path = owa_install['path'];
        owa_2013_sp = owa_install['SP'];
      }
    }
  }

  ######################################################################
  # Office Web Apps 2010 SP2
  ######################################################################
  if (owa_2010_path && (!isnull(owa_2010_sp) && owa_2010_sp == "2"))
  {
    path = hotfix_append_path(path:owa_2010_path, value:"14.0\WebServices\ConversionService\Bin\Converter");
    if (hotfix_check_fversion(file:"sword.dll", version:"14.0.7176.5000", min_version:"14.0.7015.1000", path:path, bulletin:bulletin, kb:"3127954", product:"Office Web Apps 2010") == HCF_OLDER)
      vuln = TRUE;
  }

  ######################################################################
  # Office Web Apps 2013 SP1
  ######################################################################
  if (owa_2013_path && (!isnull(owa_2013_sp) && owa_2013_sp == "1"))
  {
    path = hotfix_append_path(path:owa_2013_path, value:"WordConversionService\bin\Converter");
    if (hotfix_check_fversion(file:"sword.dll", version:"15.0.4875.1000", min_version:"15.0.4571.1500", path:path, bulletin:bulletin, kb:"3127929", product:"Office Web Apps 2013") == HCF_OLDER)
      vuln = TRUE;
  }
}

######################################################################
# SharePoint
######################################################################
function perform_sharepoint_checks()
{
  local_var sps_2010_path, sps_2010_sp, sps_2010_edition;
  local_var sps_2013_path, sps_2013_sp, sps_2013_edition;
  local_var installs, install, path, commonfiles;

  installs = get_installs(app_name:"Microsoft SharePoint Server");

  foreach install (installs[1])
  {
    if (install["Product"] == "2010")
    {
      sps_2010_path = install['path'];
      sps_2010_sp = install['SP'];
      sps_2010_edition = install['Edition'];
    }
    else if (install['Product'] == "2013")
    {
      sps_2013_path = install['path'];
      sps_2013_sp = install['SP'];
      sps_2013_edition = install['Edition'];
    }
  }

  commonfiles = hotfix_get_commonfilesdir();
  if (!commonfiles) commonfiles = hotfix_get_commonfilesdirx86();

  ######################################################################
  # SharePoint Server 2013 SP1 - Word Automation Services
  ######################################################################
  if (sps_2013_path && sps_2013_sp == "1" && sps_2013_edition == "Server")
  {
    path = hotfix_append_path(path:sps_2013_path, value:"WebServices\ConversionServices");
    if (hotfix_check_fversion(file:"sword.dll", version:"15.0.4875.1000", min_version:"15.0.0.0", path:path, bulletin:bulletin, kb:"3127927", product:"Office SharePoint Server 2013 Word Automation Services") == HCF_OLDER)
      vuln = TRUE;
  }

  ######################################################################
  # SharePoint Server 2010 SP2 - Word Automation Services / Excel Services
  ######################################################################
  if (sps_2010_path && sps_2010_sp == "2" && sps_2010_edition == "Server")
  {
    path = hotfix_append_path(path:sps_2010_path, value:"WebServices\WordServer\Core");
    if (hotfix_check_fversion(file:"sword.dll", version:"14.0.7176.5000", path:path, bulletin:bulletin, kb:"3127950", product:"Office SharePoint Server 2010 Word Automation Services") == HCF_OLDER)
      vuln = TRUE;

    path = hotfix_append_path(path:sps_2010_path, value:"Bin");
    if (hotfix_check_fversion(file:"xlsrv.dll", version:"14.0.7176.5000", path:path, bulletin:bulletin, kb:"3118381", product:"Office SharePoint Server 2010 Excel Services") == HCF_OLDER)
      vuln = TRUE;
  }
}
 
function perform_office_checks()
{
  local_var office_vers, office_sp, common_path, path, prod, kb;
  office_vers = hotfix_check_office_version();

  ######################################################################
  # Office 2007 Checks
  ######################################################################
  if (office_vers["12.0"])
  {
    office_sp = get_kb_item("SMB/Office/2007/SP");
    if (!isnull(office_sp) && office_sp == 3)
    {
      prod = "Microsoft Office 2007 SP3";
      common_path = hotfix_get_officecommonfilesdir(officever:"12.0");

      path = hotfix_append_path(path:common_path, value:"Microsoft Shared\Office12");
      if 
      (
        hotfix_check_fversion(file:"mso.dll", version:"12.0.6759.5000", path:path, bulletin:bulletin, kb:"3118396", product:prod) == HCF_OLDER ||
        hotfix_check_fversion(file:"vbe6.dll",      version: "6.5.10.57", path:path, bulletin:bulletin, kb:"2986253", product:prod) == HCF_OLDER
      )
        vuln = TRUE;
    }
  }

  ######################################################################
  # Office 2010 Checks
  ######################################################################
  if (office_vers["14.0"])
  {
    office_sp = get_kb_item("SMB/Office/2010/SP");
    if (!isnull(office_sp) && office_sp == 2)
    {
      prod = "Microsoft Office 2010 SP2";
      common_path = hotfix_get_officecommonfilesdir(officever:"14.0");

      path = hotfix_append_path(path:common_path, value:"Microsoft Shared\Office14");
      if (
        hotfix_check_fversion(file:"vbe7.dll",     version: "7.0.16.40"     , path:path, bulletin:bulletin, kb:"3115120", product: prod) == HCF_OLDER ||
        hotfix_check_fversion(file:"wwlibcxm.dll", version: "14.0.7176.5000", path:path, bulletin:bulletin, kb:"3127951", product: prod) == HCF_OLDER
      )
        vuln = TRUE;

      path = hotfix_append_path(path:hotfix_get_officeprogramfilesdir(officever:"14.0"), value:"Microsoft Office\Office14");
      if (hotfix_check_fversion(file:"ppcore.dll", version: "14.0.7176.5000" , path:path, bulletin:bulletin, kb:"3118378", product:"PowerPoint 2010 SP2") == HCF_OLDER)
        vuln = TRUE;
    }
  }

  ######################################################################
  # Office 2013 Checks
  ######################################################################
  if (office_vers["15.0"])
  {
    office_sp = get_kb_item("SMB/Office/2013/SP");
    if (!isnull(office_sp) && int(office_sp) == 1)
    {
      prod = "Microsoft Office 2013 SP1";
      common_path = hotfix_get_officecommonfilesdir(officever:"15.0");

      path = hotfix_append_path(path:common_path, value:"Microsoft Shared\Office15");
      if (hotfix_check_fversion(file:"vbe7.dll", version: "7.1.10.56", path:path, bulletin:bulletin, kb:"3115153", product:prod) == HCF_OLDER)
        vuln = TRUE;
    }
  }

  ######################################################################
  # Office 2016 Checks
  ######################################################################
  if (office_vers["16.0"])
  {
    office_sp = get_kb_item("SMB/Office/2016/SP");
    if (!isnull(office_sp) && int(office_sp) == 0)
    {
      prod = "Microsoft Office 2016";
      path = hotfix_append_path(path:hotfix_get_officecommonfilesdir(officever:"16.0"), value:"Microsoft Shared\Office16");
      if (hotfix_check_fversion(file:"vbe7.dll", version:"7.1.10.56", path:path, bulletin:bulletin, kb:"3115135", product:prod) == HCF_OLDER)
        vuln = TRUE;
    }
  }
}

function perform_office_product_checks()
{
  local_var excel_checks, word_checks, onenote_checks, outlook_checks, ppt_vwr_checks, excel_compat_checks,excel_vwr_checks,word_vwr_checks,powerpoint_checks;

  local_var installs, install, path; # For DLL checks

  ######################################################################
  # Excel Checks
  ######################################################################
  excel_checks = make_array(
    "12.0", make_array("sp", 3, "version", "12.0.6759.5000", "kb", "3118395"),
    "14.0", make_array("sp", 2, "version", "14.0.7176.5000", "kb", "3118390"),
    "15.0", make_array("sp", 1, "version", "15.0.4875.1000", "kb", "3127921"),
    "16.0", make_nested_list(
      make_array("sp", 0, "version", "16.0.4456.1003", "channel", "MSI", "kb", "3127904"),
      make_array("sp", 0, "version", "16.0.6741.2088", "channel", "Deferred", "kb", "3127904"),
      make_array("sp", 0, "version", "16.0.6965.2105", "channel", "Deferred", "channel_version", "1605", "kb", "3127904"),
      make_array("sp", 0, "version", "16.0.7369.2055", "channel", "First Release for Deferred", "kb", "3127904"),
      make_array("sp", 0, "version", "16.0.7369.2055", "channel", "Current", "kb", "3127904")
    )
  );
  if (hotfix_check_office_product(product:"Excel", checks:excel_checks, bulletin:bulletin))
    vuln = TRUE;

  ######################################################################
  # Word Checks
  ######################################################################
  word_checks = make_array(
    "12.0", make_array("sp", 3, "version", "12.0.6759.5000", "kb", "3127949"),
    "14.0", make_array("sp", 2, "version", "14.0.7176.5000", "kb", "3127953"),
    "15.0", make_array("sp", 1, "version", "15.0.4875.1000", "kb", "3127932")
  );
  if (hotfix_check_office_product(product:"Word", checks:word_checks, bulletin:bulletin))
    vuln = TRUE;

  ######################################################################
  # Excel Viewer
  ######################################################################
  excel_vwr_checks = make_array(
    "12.0", make_array("sp", 3, "version", "12.0.6759.5000", "kb", "3127893")
  );
  if (hotfix_check_office_product(product:"ExcelViewer", display_name:"Excel Viewer", checks:excel_vwr_checks, bulletin:bulletin))
    vuln = TRUE;

  ######################################################################
  # Word Viewer
  ######################################################################
  word_vwr_checks = make_array(
    "11.0", make_array("version", "11.0.8437.0", "kb", "3127962")
  );
  if (hotfix_check_office_product(product:"WordViewer", display_name:"Word Viewer", checks:word_vwr_checks, bulletin:bulletin))
    vuln = TRUE;

  ######################################################################
  # PowerPoint Viewer 2010
  ######################################################################
  ppt_vwr_checks = make_array(
    "14.0", make_array("sp", 2, "version", "14.0.7176.5000", "kb", "3118382")
  );
  if (hotfix_check_office_product(product:"PowerPointViewer", display_name:"PowerPoint Viewer", checks:ppt_vwr_checks, bulletin:bulletin))
    vuln = TRUE;

  ######################################################################
  # Excel Compatibility pack
  ######################################################################
  excel_compat_checks = make_array(
    "12.0", make_array("version", "12.0.6759.5000", "kb", "3127889")
  );
  if (hotfix_check_office_product(product:"ExcelCnv", display_name:"Office Compatibility Pack SP3", checks:excel_compat_checks, bulletin:bulletin))
    vuln = TRUE;

  ######################################################################
  # Word Compatibility pack
  ######################################################################
  installs = get_kb_list("SMB/Office/WordCnv/*/ProductPath");
  if (!isnull(installs))
  {
    foreach install (keys(installs))
    {
      path = installs[install];
      path = ereg_replace(pattern:'^(.+)\\\\[^\\\\]+\\.exe$', replace:"\1\", string:path, icase:TRUE);
      if(hotfix_check_fversion(path:path, file:"wrd12cnv.dll", version:"12.0.6759.5000", kb:"3127948", bulletin:bulletin, min_version:"12.0.0.0", product:"Microsoft Office Compatibility Pack") == HCF_OLDER)
        vuln = TRUE;
    }
  }
}

perform_office_checks();
perform_office_product_checks();
perform_owa_checks();
perform_sharepoint_checks();

if (vuln)
{
  set_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
  hotfix_security_hole();
  hotfix_check_fversion_end();
  exit(0);
}
else
{
  hotfix_check_fversion_end();
  audit(AUDIT_HOST_NOT, 'affected');
}

References