Debian Security Advisory DSA 2666-1 (xen - several vulnerabilities)

2013-05-12T00:00:00
ID OPENVAS:1361412562310892666
Type openvas
Reporter Copyright (c) 2013 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-2013-1918 (XSA 45 ) several long latency operations are not preemptible.

Some page table manipulation operations for PV guests were not made preemptible, allowing a malicious or buggy PV guest kernel to mount a denial of service attack affecting the whole system.

CVE-2013-1952 (XSA 49 ) VT-d interrupt remapping source validation flaw for bridges.

Due to missing source validation on interrupt remapping table entries for MSI interrupts set up by bridge devices, a malicious domain with access to such a device can mount a denial of service attack affecting the whole system.

CVE-2013-1964 (XSA 50 ) grant table hypercall acquire/release imbalance.

When releasing a particular, non-transitive grant after doing a grant copy operation, Xen incorrectly releases an unrelated grant reference, leading possibly to a crash of the host system. Furthermore information leakage or privilege escalation cannot be ruled out.

                                        
                                            # OpenVAS Vulnerability Test
# $Id: deb_2666.nasl 14276 2019-03-18 14:43:56Z cfischer $
# Auto-generated from advisory DSA 2666-1 using nvtgen 1.0
# Script version: 1.0
#
# Author:
# Greenbone Networks
#
# Copyright:
# Copyright (c) 2013 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("1.3.6.1.4.1.25623.1.0.892666");
  script_version("$Revision: 14276 $");
  script_cve_id("CVE-2013-1952", "CVE-2013-1918", "CVE-2013-1964");
  script_name("Debian Security Advisory DSA 2666-1 (xen - several vulnerabilities)");
  script_tag(name:"last_modification", value:"$Date: 2019-03-18 15:43:56 +0100 (Mon, 18 Mar 2019) $");
  script_tag(name:"creation_date", value:"2013-05-12 00:00:00 +0200 (Sun, 12 May 2013)");
  script_tag(name:"cvss_base", value:"6.9");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:M/Au:N/C:C/I:C/A:C");

  script_xref(name:"URL", value:"http://www.debian.org/security/2013/dsa-2666.html");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (c) 2013 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=DEB(6|7)");
  script_tag(name:"affected", value:"xen on Debian Linux");
  script_tag(name:"solution", value:"For the oldstable distribution (squeeze), these problems have been fixed in
version 4.0.1-5.11.

For the stable distribution (wheezy), these problems have been fixed in
version 4.1.4-3+deb7u1.

For the testing distribution (jessie), these problems have been fixed in
version 4.1.4-4.

For the unstable distribution (sid), these problems have been fixed in
version 4.1.4-4.

Note that for the stable (wheezy), testing and unstable distribution,
CVE-2013-1964 (XSA
50
) was already fixed in version 4.1.4-3.

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-2013-1918 (XSA
45
) several long latency operations are not preemptible.

Some page table manipulation operations for PV guests were not made
preemptible, allowing a malicious or buggy PV guest kernel to mount a
denial of service attack affecting the whole system.

CVE-2013-1952 (XSA
49
) VT-d interrupt remapping source validation flaw for bridges.

Due to missing source validation on interrupt remapping table
entries for MSI interrupts set up by bridge devices, a malicious
domain with access to such a device can mount a denial of service
attack affecting the whole system.

CVE-2013-1964 (XSA
50
) grant table hypercall acquire/release imbalance.

When releasing a particular, non-transitive grant after doing a grant
copy operation, Xen incorrectly releases an unrelated grant
reference, leading possibly to a crash of the host system.
Furthermore information leakage or privilege escalation cannot be
ruled out.");
  script_tag(name:"vuldetect", value:"This check tests the installed software version using the apt package manager.");
  script_tag(name:"qod_type", value:"package");
  script_tag(name:"solution_type", value:"VendorFix");

  exit(0);
}

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

res = "";
report = "";
if((res = isdpkgvuln(pkg:"libxen-dev", ver:"4.0.1-5.11", rls:"DEB6")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"libxenstore3.0", ver:"4.0.1-5.11", rls:"DEB6")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"xen-docs-4.0", ver:"4.0.1-5.11", rls:"DEB6")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"xen-hypervisor-4.0-amd64", ver:"4.0.1-5.11", rls:"DEB6")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"xen-hypervisor-4.0-i386", ver:"4.0.1-5.11", rls:"DEB6")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"xen-utils-4.0", ver:"4.0.1-5.11", rls:"DEB6")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"xenstore-utils", ver:"4.0.1-5.11", rls:"DEB6")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"libxen-4.1", ver:"4.1.4-3+deb7u1", rls:"DEB7")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"libxen-dev", ver:"4.1.4-3+deb7u1", rls:"DEB7")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"libxen-ocaml", ver:"4.1.4-3+deb7u1", rls:"DEB7")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"libxen-ocaml-dev", ver:"4.1.4-3+deb7u1", rls:"DEB7")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"libxenstore3.0", ver:"4.1.4-3+deb7u1", rls:"DEB7")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"xen-docs-4.1", ver:"4.1.4-3+deb7u1", rls:"DEB7")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"xen-hypervisor-4.1-amd64", ver:"4.1.4-3+deb7u1", rls:"DEB7")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"xen-hypervisor-4.1-i386", ver:"4.1.4-3+deb7u1", rls:"DEB7")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"xen-system-amd64", ver:"4.1.4-3+deb7u1", rls:"DEB7")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"xen-system-i386", ver:"4.1.4-3+deb7u1", rls:"DEB7")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"xen-utils-4.1", ver:"4.1.4-3+deb7u1", rls:"DEB7")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"xen-utils-common", ver:"4.1.4-3+deb7u1", rls:"DEB7")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"xenstore-utils", ver:"4.1.4-3+deb7u1", rls:"DEB7")) != NULL) {
  report += res;
}

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