Microsoft Windows 'libjpeg' Information Disclosure Vulnerability (KB4014794)

# SPDX-FileCopyrightText: 2017 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.810919");
  script_version("2026-04-28T06:28:06+0000");
  script_cve_id("CVE-2013-6629");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_tag(name:"last_modification", value:"2026-04-28 06:28:06 +0000 (Tue, 28 Apr 2026)");
  script_tag(name:"creation_date", value:"2017-04-12 10:47:16 +0530 (Wed, 12 Apr 2017)");
  script_name("Microsoft Windows 'libjpeg' Information Disclosure Vulnerability (KB4014794)");

  script_tag(name:"summary", value:"This host is missing an important security
  update according to Microsoft KB4014794.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");

  script_tag(name:"insight", value:"The flaw exists within the open-source
  libjpeg image-processing library where it fails to properly handle objects
  in memory.");

  script_tag(name:"impact", value:"Successful exploitation will allow an attacker
  to retrieve information that could lead to an Address Space Layout Randomization (ASLR)
  bypass. And that could allow for bypassing the ASLR security feature that protects
  users from a broad class of vulnerabilities.");

  script_tag(name:"affected", value:"- Microsoft Windows Vista x32/x64 Edition Service Pack 2

  - Microsoft Windows Server 2008 x32/x64 Edition Service Pack 2");

  script_tag(name:"solution", value:"The vendor has released updates. Please see the references for more information.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"executable_version");
  script_xref(name:"URL", value:"https://support.microsoft.com/en-gb/help/4014794");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/63676");
  script_xref(name:"URL", value:"https://portal.msrc.microsoft.com/en-us/security-guidance");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_family("Windows : Microsoft Bulletins");
  script_dependencies("smb_reg_service_pack.nasl");
  script_require_ports(139, 445);
  script_mandatory_keys("SMB/WindowsVersion");
  exit(0);
}


include("smb_nt.inc");
include("secpod_reg.inc");
include("version_func.inc");
include("secpod_smb_func.inc");

if(hotfix_check_sp(winVista:3, win2008:3, winVistax64:3, win2008x64:3) <= 0){
  exit(0);
}

sysPath = smb_get_system32root();
if(!sysPath ){
  exit(0);
}

asVer = fetch_file_version(sysPath:sysPath, file_name:"Asycfilt.dll");
if(!asVer){
  exit(0);
}

if(hotfix_check_sp(winVista:3, winVistax64:3, win2008:3, win2008x64:3) > 0)
{
  if(version_is_less(version:asVer, test_version:"6.0.6002.19755"))
  {
    Vulnerable_range = "Less than 6.0.6002.19755";
    VULN = TRUE ;
  }

  else if(version_in_range(version:asVer, test_version:"6.0.6002.24000", test_version2:"6.0.6002.24077"))
  {
    Vulnerable_range = "6.0.6002.24000 - 6.0.6002.24077";
    VULN = TRUE ;
  }
}

if(VULN)
{
  report = 'File checked:     ' + sysPath + "\Asycfilt.dll" + '\n' +
           'File version:     ' + asVer  + '\n' +
           'Vulnerable range: ' + Vulnerable_range + '\n' ;
  security_message(data:report);
  exit(0);
}

exit(0);