Debian Security Advisory DSA 3357-1 (vzctl - security update)

2015-09-13T00:00:00
ID OPENVAS:1361412562310703357
Type openvas
Reporter Copyright (c) 2015 Greenbone Networks GmbH http://greenbone.net
Modified 2019-03-18T00:00:00

Description

It was discovered that vzctl, a set of control tools for the OpenVZ server virtualisation solution, determined the storage layout of containers based on the presence of an XML file inside the container. An attacker with local root privileges in a simfs-based container could gain control over ploop-based containers. Further information on the prerequisites of such an attack can be found at src.openvz.org.

The oldstable distribution (wheezy) is not affected.

                                        
                                            # OpenVAS Vulnerability Test
# $Id: deb_3357.nasl 14278 2019-03-18 14:47:26Z cfischer $
# Auto-generated from advisory DSA 3357-1 using nvtgen 1.0
# Script version: 1.0
#
# Author:
# Greenbone Networks
#
# Copyright:
# Copyright (c) 2015 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("1.3.6.1.4.1.25623.1.0.703357");
  script_version("$Revision: 14278 $");
  script_cve_id("CVE-2015-6927");
  script_name("Debian Security Advisory DSA 3357-1 (vzctl - security update)");
  script_tag(name:"last_modification", value:"$Date: 2019-03-18 15:47:26 +0100 (Mon, 18 Mar 2019) $");
  script_tag(name:"creation_date", value:"2015-09-13 00:00:00 +0200 (Sun, 13 Sep 2015)");
  script_tag(name:"cvss_base", value:"3.6");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:N/I:P/A:P");
  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  script_xref(name:"URL", value:"http://www.debian.org/security/2015/dsa-3357.html");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (c) 2015 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:"vzctl on Debian Linux");
  script_tag(name:"solution", value:"For the stable distribution (jessie), this problem has been fixed in
version 4.8-1+deb8u2. During the update existing configurations are
automatically updated.

For the testing distribution (stretch), this problem has been fixed
in version 4.9.4-2.

For the unstable distribution (sid), this problem has been fixed in
version 4.9.4-2.

We recommend that you upgrade your vzctl packages.");
  script_tag(name:"summary", value:"It was discovered that vzctl, a set of control tools for the OpenVZ
server virtualisation solution, determined the storage layout of
containers based on the presence of an XML file inside the container.
An attacker with local root privileges in a simfs-based container
could gain control over ploop-based containers. Further information on
the prerequisites of such an attack can be found at src.openvz.org.

The oldstable distribution (wheezy) is not affected.");
  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:"vzctl", ver:"4.8-1+deb8u2", rls:"DEB8")) != NULL) {
  report += res;
}

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