Search...

Citrix XenServer Multiple Security Updates (CTX224740)

2017-06-30T00:00:00
ID OPENVAS:1361412562310106915
Type openvas
Reporter This script is Copyright (C) 2017 Greenbone Networks GmbH
Modified 2017-08-16T00:00:00

Description

A number of security issues have been identified within Citrix XenServer. These issues could, if exploited, allow a malicious administrator of a guest VM to compromise the host. The issues have the identifiers:

  • CVE-2017-10920, CVE-2017-10921, CVE-2017-10922 (High): Grant table operations mishandle reference counts.

  • CVE-2017-10918 (High): Stale P1M mappings due to insufficient error checking.

  • CVE-2017-10912 (Medium): Page transfer may allow PV guest to elevate privilege.

  • CVE-2017-10913,CVE-2017-10914 (Medium): Races in the grant table unmap code.

  • CVE-2017-10915 (Medium): x85: insufficient reference counts during shadow emulation.

  • CVE-2017-10917 (Medium): NULL pointer deref in event channel poll.

  • CVE-2017-10911 (Low): blkif responses leak backend stack data.

                                        
                                            ###############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_xenserver_ctx224740.nasl 6928 2017-08-16 02:41:07Z ckuersteiner $
#
# Citrix XenServer Multiple Security Updates (CTX224740)
#
# Authors:
# Christian Kuersteiner <christian.kuersteiner@greenbone.net>
#
# Copyright:
# Copyright (c) 2017 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 as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# 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:citrix:xenserver";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.106915");
  script_version("$Revision: 6928 $");
  script_tag(name: "last_modification", value: "$Date: 2017-08-16 04:41:07 +0200 (Wed, 16 Aug 2017) $");
  script_tag(name: "creation_date", value: "2017-06-30 16:20:13 +0700 (Fri, 30 Jun 2017)");
  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-2017-10911", "CVE-2017-10912", "CVE-2017-10913", "CVE-2017-10914", "CVE-2017-10915",
"CVE-2017-10917", "CVE-2017-10918", "CVE-2017-10920", "CVE-2017-10921", "CVE-2017-10922");

  script_tag(name: "qod_type", value: "package");

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

  script_name("Citrix XenServer Multiple Security Updates (CTX224740)");

  script_category(ACT_GATHER_INFO);

  script_copyright("This script is Copyright (C) 2017 Greenbone Networks GmbH");
  script_family("Citrix Xenserver Local Security Checks");
  script_dependencies("gb_xenserver_version.nasl");
  script_mandatory_keys("xenserver/product_version","xenserver/patches");

  script_tag(name: "summary", value: "A number of security issues have been identified within Citrix XenServer.
These issues could, if exploited, allow a malicious administrator of a guest VM to compromise the host. The issues
have the identifiers:

- CVE-2017-10920, CVE-2017-10921, CVE-2017-10922 (High): Grant table operations mishandle reference counts.

- CVE-2017-10918 (High): Stale P1M mappings due to insufficient error checking.

- CVE-2017-10912 (Medium): Page transfer may allow PV guest to elevate privilege.

- CVE-2017-10913,CVE-2017-10914 (Medium): Races in the grant table unmap code.

- CVE-2017-10915 (Medium): x85: insufficient reference counts during shadow emulation.

- CVE-2017-10917 (Medium): NULL pointer deref in event channel poll.

- CVE-2017-10911 (Low): blkif responses leak backend stack data.");

  script_tag(name: "vuldetect", value: "Check the installed hotfixes.");

  script_tag(name: "affected", value: "XenServer versions 7.2, 7.1, 7.0, 6.5, 6.2.0, 6.0.2.");

  script_tag(name: "solution", value: "Apply the hotfix referenced in the advisory.");

  script_xref(name: "URL", value: "https://support.citrix.com/article/CTX224740");

  exit(0);
}

include("citrix_version_func.inc");
include("host_details.inc");
include("misc_func.inc");

if (!version = get_app_version(cpe: CPE))
  exit(0);

if (!hotfixes = get_kb_item("xenserver/patches"))
  exit(0);

patches = make_array();

patches['7.2.0'] = make_list('XS72E001', 'XS72E002');
patches['7.1.0'] = make_list('XS71E011', 'XS71E012');
patches['7.0.0'] = make_list('XS70E035', 'XS70E036');
patches['6.5.0'] = make_list('XS65ESP1057', 'XS65ESP1058');
patches['6.2.0'] = make_list('XS62ESP1061', 'XS62ESP1062');
patches['6.0.2'] = make_list('XS602ECC045', 'XS602ECC046');

report_if_citrix_xenserver_is_vulnerable(version: version, hotfixes: hotfixes, patches: patches);

exit(99);
JSON Vulners Source
Initial Source


All product names, logos, and brands are property of their respective owners. All company, product and service names used in this website are for identification purposes only. Use of these names, logos, and brands does not imply endorsement.If you are an owner of some content and want it to be removed, please mail to content@vulners.com Vulners, 2017
Protected by