Debian Security Advisory DSA 3633-1 (xen - security update)

2016-08-02T00:00:00
ID OPENVAS:1361412562310703633
Type openvas
Reporter Copyright (c) 2016 Greenbone Networks GmbH http://greenbone.net
Modified 2019-03-18T00:00:00

Description

Multiple vulnerabilities have been discovered in the Xen hypervisor. The Common Vulnerabilities and Exposures project identifies the following problems:

CVE-2015-8338 Julien Grall discovered that Xen on ARM was susceptible to denial of service via long running memory operations.

CVE-2016-4480 Jan Beulich discovered that incorrect page table handling could result in privilege escalation inside a Xen guest instance.

CVE-2016-4962 Wei Liu discovered multiple cases of missing input sanitising in libxl which could result in denial of service.

CVE-2016-5242 Aaron Cornelius discovered that incorrect resource handling on ARM systems could result in denial of service.

CVE-2016-6258 Jeremie Boutoille discovered that incorrect pagetable handling in PV instances could result in guest to host privilege escalation.

                                        
                                            # OpenVAS Vulnerability Test
# $Id: deb_3633.nasl 3784 2016-08-02 08:07:52Z antu123 $
# Auto-generated from advisory DSA 3633-1 using nvtgen 1.0
# Script version: 1.0
#
# Author:
# Greenbone Networks
#
# Copyright:
# Copyright (c) 2016 Greenbone Networks GmbH http://greenbone.net
# Text descriptions are largely excerpted from the referenced
# advisory, and are Copyright (c) the respective author(s)
#
# 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.
#

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.703633");
  script_version("$Revision: 14279 $");
  script_cve_id("CVE-2015-8338", "CVE-2016-4480", "CVE-2016-4962", "CVE-2016-5242",
                  "CVE-2016-6258");
  script_name("Debian Security Advisory DSA 3633-1 (xen - security update)");
  script_tag(name:"last_modification", value:"$Date: 2019-03-18 15:48:34 +0100 (Mon, 18 Mar 2019) $");
  script_tag(name:"creation_date", value:"2016-08-02 10:55:39 +0530 (Tue, 02 Aug 2016)");
  script_tag(name:"cvss_base", value:"7.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  script_xref(name:"URL", value:"http://www.debian.org/security/2016/dsa-3633.html");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (c) 2016 Greenbone Networks GmbH http://greenbone.net");
  script_family("Debian Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB8");
  script_tag(name:"affected", value:"xen on Debian Linux");
  script_tag(name:"solution", value:"For the stable distribution (jessie),
these problems have been fixed in version 4.4.1-9+deb8u6.

For the unstable distribution (sid), these problems will be fixed soon.

We recommend that you upgrade your xen packages.");
  script_tag(name:"summary", value:"Multiple vulnerabilities have been
discovered in the Xen hypervisor. The Common Vulnerabilities and Exposures project
identifies the following problems:

CVE-2015-8338
Julien Grall discovered that Xen on ARM was susceptible to denial
of service via long running memory operations.

CVE-2016-4480
Jan Beulich discovered that incorrect page table handling could
result in privilege escalation inside a Xen guest instance.

CVE-2016-4962
Wei Liu discovered multiple cases of missing input sanitising in
libxl which could result in denial of service.

CVE-2016-5242
Aaron Cornelius discovered that incorrect resource handling on
ARM systems could result in denial of service.

CVE-2016-6258
Jeremie Boutoille discovered that incorrect pagetable handling in
PV instances could result in guest to host privilege escalation.");
  script_tag(name:"vuldetect", value:"This check tests the installed
software version using the apt package manager.");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-deb.inc");

res = "";
report = "";
if((res = isdpkgvuln(pkg:"libxen-4.4:amd64", ver:"4.4.1-9+deb8u6", rls:"DEB8")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"libxen-4.4:i386", ver:"4.4.1-9+deb8u6", rls:"DEB8")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"libxen-dev", ver:"4.4.1-9+deb8u6", rls:"DEB8")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"libxenstore3.0:amd64", ver:"4.4.1-9+deb8u6", rls:"DEB8")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"libxenstore3.0:i386", ver:"4.4.1-9+deb8u6", rls:"DEB8")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"xen-hypervisor-4.4-amd64", ver:"4.4.1-9+deb8u6", rls:"DEB8")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"xen-hypervisor-4.4-arm64", ver:"4.4.1-9+deb8u6", rls:"DEB8")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"xen-hypervisor-4.4-armhf", ver:"4.4.1-9+deb8u6", rls:"DEB8")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"xen-system-amd64", ver:"4.4.1-9+deb8u6", rls:"DEB8")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"xen-system-arm64", ver:"4.4.1-9+deb8u6", rls:"DEB8")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"xen-system-armhf", ver:"4.4.1-9+deb8u6", rls:"DEB8")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"xen-utils-4.4", ver:"4.4.1-9+deb8u6", rls:"DEB8")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"xen-utils-common", ver:"4.4.1-9+deb8u6", rls:"DEB8")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"xenstore-utils", ver:"4.4.1-9+deb8u6", rls:"DEB8")) != NULL) {
  report += res;
}

if(report != "") {
  security_message(data:report);
} else if (__pkg_match) {
  exit(99);
}