Opera Unicode String Denial Of Service Vulnerability (Linux)

###############################################################################
# OpenVAS Vulnerability Test
# $Id: secpod_opera_unicode_str_dos_vuln_lin.nasl 5122 2017-01-27 12:16:00Z teissa $
#
# Opera Unicode String Denial Of Service Vulnerability (Linux)
#
# Authors:
# Sharath S <[email protected]>
#
# Updated for New CVE's
#  - By Sharath S <[email protected]> On 2009-09-21 #4893
#
# Copyright:
# Copyright (c) 2009 SecPod, http://www.secpod.com
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), 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_impact = "Successful exploitation lets the attacker cause memory or CPU consumption,
  resulting in Denial of Service condition.
  Impact Level: Application";
tag_affected = "Opera version 9.52 and prior on Linux.";
tag_insight = "- Error caused by calling the 'window.print' function in a loop aka a
    'printing DoS attack'.
  - CPU consumption issue exists when a series of automatic submissions
    of a form containing a KEYGEN element.
  - Error exists when application fails to handle user supplied input into
    the 'write' method via a long Unicode string argument.";
tag_solution = "Upgrade to Opera Version 10 or later,
  For updates refer to http://www.opera.com/download/";
tag_summary = "This host is installed with Opera and is prone to Denial of Service
  vulnerability.";

if(description)
{
  script_id(900804);
  script_version("$Revision: 5122 $");
  script_tag(name:"last_modification", value:"$Date: 2017-01-27 13:16:00 +0100 (Fri, 27 Jan 2017) $");
  script_tag(name:"creation_date", value:"2009-07-23 21:05:26 +0200 (Thu, 23 Jul 2009)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_cve_id("CVE-2009-2577", "CVE-2008-7245", "CVE-2009-3269");
  script_name("Opera Unicode String Denial Of Service Vulnerability (Linux)");
  script_xref(name : "URL" , value : "http://websecurity.com.ua/3338/");
  script_xref(name : "URL" , value : "http://websecurity.com.ua/2456/");
  script_xref(name : "URL" , value : "http://websecurity.com.ua/3194/");
  script_xref(name : "URL" , value : "http://www.securityfocus.com/archive/1/archive/1/505092/100/0/threaded");
  script_xref(name : "URL" , value : "http://www.securityfocus.com/archive/1/archive/1/506328/100/100/threaded");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2009 SecPod");
  script_family("Denial of Service");
  script_dependencies("secpod_opera_detection_linux_900037.nasl");
  script_require_keys("Opera/Linux/Version");
  script_tag(name : "impact" , value : tag_impact);
  script_tag(name : "affected" , value : tag_affected);
  script_tag(name : "insight" , value : tag_insight);
  script_tag(name : "solution" , value : tag_solution);
  script_tag(name : "summary" , value : tag_summary);
  script_tag(name:"qod_type", value:"executable_version");
  script_tag(name:"solution_type", value:"VendorFix");
  exit(0);
}


include("version_func.inc");

operaVer = get_kb_item("Opera/Linux/Version");
if(!operaVer){
  exit(0);
}

# Check for Opera version <= 9.52
if(version_is_less_equal(version:operaVer, test_version:"9.52")){
  security_message(0);
}