PHP 'CVE-2018-19935' - 'imap_mail' Denial of Service Vulnerability (Linux)

2018-12-10T00:00:00
ID OPENVAS:1361412562310108505
Type openvas
Reporter Copyright (C) 2018 Greenbone Networks GmbH
Modified 2019-01-04T00:00:00

Description

This host is installed with PHP and is prone to a Denial of Service vulnerability.

                                        
                                            ###############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_php_imap_mail_dos_vuln_lin.nasl 12938 2019-01-04 07:18:11Z asteins $
#
# PHP 'CVE-2018-19935' - 'imap_mail' Denial of Service Vulnerability (Linux)
#
# Authors:
# Christian Fischer <christian.fischer@greenbone.net>
#
# Copyright:
# Copyright (C) 2018 Greenbone Networks GmbH, http://www.greenbone.net
#
# 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.
###############################################################################

CPE = "cpe:/a:php:php";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.108505");
  script_version("$Revision: 12938 $");
  script_cve_id("CVE-2018-19935");
  script_bugtraq_id(106143);
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_tag(name:"last_modification", value:"$Date: 2019-01-04 08:18:11 +0100 (Fri, 04 Jan 2019) $");
  script_tag(name:"creation_date", value:"2018-12-10 15:59:23 +0100 (Mon, 10 Dec 2018)");
  script_name("PHP 'CVE-2018-19935' - 'imap_mail' Denial of Service Vulnerability (Linux)");
  script_copyright("Copyright (C) 2018 Greenbone Networks GmbH");
  script_category(ACT_GATHER_INFO);
  script_family("Web application abuses");
  script_dependencies("gb_php_detect.nasl", "os_detection.nasl");
  script_mandatory_keys("php/installed", "Host/runs_unixoide");

  script_xref(name:"URL", value:"https://bugs.php.net/bug.php?id=77020");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/106143");

  script_tag(name:"summary", value:"This host is installed with PHP and is prone
  to a Denial of Service vulnerability.");

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

  script_tag(name:"insight", value:"The flaw exist due to a NULL pointer dereference and application crash
  via an empty string in the message argument to the imap_mail function of ext/imap/php_imap.c.");

  script_tag(name:"impact", value:"Successful exploitation will allow attackers
  to cause a denial of service of the affected application.");

  script_tag(name:"affected", value:"PHP versions 5.x before 5.6.39, 7.0.x before 7.0.33, 7.1.x before 7.1.26
  and 7.2.x before 7.2.14.");

  script_tag(name:"solution", value:"Update to version 5.6.39, 7.0.33, 7.1.26, 7.2.14, 7.3.0 or later.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"remote_banner_unreliable");

  exit(0);
}

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

if( isnull( port = get_app_port( cpe:CPE ) ) )
  exit( 0 );

if( ! infos = get_app_version_and_location( cpe:CPE, port:port, exit_no_version:TRUE ) )
  exit( 0 );

vers = infos['version'];
path = infos['location'];

if( version_in_range( version:vers, test_version:"5.0.0", test_version2:"5.6.38" ) ) {
  fix = "5.6.39";
} else if( version_in_range( version:vers, test_version:"7.0.0", test_version2:"7.0.32" ) ) {
  fix = "7.0.33";
} else if( version_in_range( version:vers, test_version:"7.1.0", test_version2:"7.1.25" ) ) {
  fix = "7.1.26";
} else if( version_in_range( version:vers, test_version:"7.2.0", test_version2:"7.2.13" ) ) {
  fix = "7.2.14";
}

if( fix ) {
  report = report_fixed_ver( installed_version:vers, fixed_version:fix, install_path:path );
  security_message( port:port, data:report );
  exit( 0 );
}

exit( 99 );