GnuTLS < 2.2.4 vulnerability (Windows)

# OpenVAS Vulnerability Test
# $Id: smbcl_gnutls_CB-A08-0079.nasl 8193 2017-12-20 10:46:55Z cfischer $
# Description: GnuTLS < 2.2.4 vulnerability (Windows)
#
# Authors:
# Carsten Koch-Mauthe <c.koch-mauthe at dn-systems.de>
# Modified to implement through 'smb_nt.inc'
#- By Nikita MR <[email protected]> on 2009-09-17
#
# Copyright:
# Copyright (C) 2008 Greenbone Networks GmbH
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2,
# as published by the Free Software Foundation
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#

tag_summary = "The remote host is probably affected by the vulnerabilities described in
 CVE-2008-1948, CVE-2008-1949, CVE-2008-1950

GnuTLS < 2.2.4 vulnerability

Impact

   CVE-2008-1948
     The _gnutls_server_name_recv_params function in lib/ext_server_name.c
     in libgnutls in gnutls-serv in GnuTLS before 2.2.4 does not properly
     calculate the number of Server Names in a TLS 1.0 Client Hello
     message during extension handling, which allows remote attackers
     to cause a denial of service (crash) or possibly execute arbitrary
     code via a zero value for the length of Server Names, which leads
     to a buffer overflow in session resumption data in the
     pack_security_parameters function, aka GNUTLS-SA-2008-1-1.

   CVE-2008-1949
     The _gnutls_recv_client_kx_message function in lib/gnutls_kx.c
     in libgnutls in gnutls-serv in GnuTLS before 2.2.4 continues to
     process Client Hello messages within a TLS message after one has
     already been processed, which allows remote attackers to cause a
     denial of service (NULL dereference and crash) via a TLS message
     containing multiple Client Hello messages, aka GNUTLS-SA-2008-1-2.

   CVE 2008-1950
     Integer signedness error in the _gnutls_ciphertext2compressed
     function in lib/gnutls_cipher.c in libgnutls in GnuTLS before 2.2.4
     allows remote attackers to cause a denial of service (buffer over-read
     and crash) via a certain integer value in the Random field in an
     encrypted Client Hello message within a TLS record with an invalid
     Record Length, which leads to an invalid cipher padding length,
     aka GNUTLS-SA-2008-1-3.";

tag_solution = "All GnuTLS users should upgrade to the latest version.";

CPE = "cpe:/a:gnu:gnutls";

if(description)
{
 script_id(90027);
 script_version("$Revision: 8193 $");
 script_tag(name:"last_modification", value:"$Date: 2017-12-20 11:46:55 +0100 (Wed, 20 Dec 2017) $");
 script_tag(name:"creation_date", value:"2008-09-06 20:50:27 +0200 (Sat, 06 Sep 2008)");
 script_tag(name:"cvss_base", value:"10.0");
 script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
 script_cve_id("CVE-2008-1948", "CVE-2008-1949", "CVE-2008-1950");
 script_name("GnuTLS < 2.2.4 vulnerability (Windows)");

 script_category(ACT_GATHER_INFO);
  script_tag(name:"qod_type", value:"registry");
 script_copyright("Copyright (C) 2008 Greenbone Networks GmbH");
 script_family("General");
 script_dependencies("gb_gnutls_detect_win.nasl");
 script_mandatory_keys("GnuTLS/Win/Installed");
 script_tag(name : "solution" , value : tag_solution);
 script_tag(name : "summary" , value : tag_summary);
 exit(0);
}

include("host_details.inc");
include("version_func.inc");

infos = get_app_version_and_location( cpe:CPE, exit_no_version:TRUE );
vers = infos['version'];
path = infos['location'];

if( version_is_less( version:vers, test_version:"2.2.4" ) ) {
  report = report_fixed_ver( installed_version:vers, fixed_version:"2.2.4", install_path:path );
  security_message( port:0, data:report );
  exit( 0 );
}

exit( 99 );