Debian Security Advisory DSA 3597-1 (expat - security update)

# OpenVAS Vulnerability Test
# $Id: deb_3597.nasl 6608 2017-07-07 12:05:05Z cfischer $
# Auto-generated from advisory DSA 3597-1 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_id(703597);
    script_version("$Revision: 6608 $");
    script_cve_id("CVE-2012-0876", "CVE-2012-6702", "CVE-2016-5300");
    script_name("Debian Security Advisory DSA 3597-1 (expat - security update)");
    script_tag(name: "last_modification", value: "$Date: 2017-07-07 14:05:05 +0200 (Fri, 07 Jul 2017) $");
    script_tag(name: "creation_date", value: "2016-06-07 00:00:00 +0200 (Tue, 07 Jun 2016)");
    script_tag(name:"cvss_base", value:"7.8");
    script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/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-3597.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");
    script_tag(name: "affected",  value: "expat on Debian Linux");
    script_tag(name: "insight",   value: "This package contains xmlwf, an example
application of expat, the C library for parsing XML. The arguments to xmlwf are one
or more files which are each to be checked for XML well-formedness.");
    script_tag(name: "solution",  value: "For the stable distribution (jessie),
these problems have been fixed in version 2.1.0-6+deb8u3.

For the unstable distribution (sid), these problems have been fixed in
version 2.1.1-3.

We recommend that you upgrade your expat packages.");
    script_tag(name: "summary",   value: "Two related issues have been discovered
in Expat, a C library for parsing XML.

CVE-2012-6702It was introduced when
CVE-2012-0876 

was addressed. Stefan Srensen discovered that the use of the function
XML_Parse() seeds the random number generator generating repeated outputs
for rand() calls.

CVE-2016-5300It is the product of an incomplete solution for
CVE-2012-0876 
.
The parser poorly seeds the random number generator allowing an attacker to
cause a denial of service (CPU consumption) via an XML file with crafted
identifiers.

You might need to manually restart programs and services using expat
libraries.");
    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:"expat", ver:"2.1.0-6+deb8u3", rls_regex:"DEB8.[0-9]+")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"lib64expat1", ver:"2.1.0-6+deb8u3", rls_regex:"DEB8.[0-9]+")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"lib64expat1-dev", ver:"2.1.0-6+deb8u3", rls_regex:"DEB8.[0-9]+")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"libexpat1:amd64", ver:"2.1.0-6+deb8u3", rls_regex:"DEB8.[0-9]+")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"libexpat1:i386", ver:"2.1.0-6+deb8u3", rls_regex:"DEB8.[0-9]+")) != NULL) {
    report += res;
}

if ((res = isdpkgvuln(pkg:"libexpat1-dev:amd64", ver:"2.1.0-6+deb8u3", rls_regex:"DEB8.[0-9]+")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"libexpat1-dev:i386", ver:"2.1.0-6+deb8u3", rls_regex:"DEB8.[0-9]+")) != NULL) {
    report += res;
}


if (report != "") {
    security_message(data:report);
} else if (__pkg_match) {
    exit(99); # Not vulnerable.
}