Debian Security Advisory DSA 3216-1 (tor - security update)

# OpenVAS Vulnerability Test
# $Id: deb_3216.nasl 6609 2017-07-07 12:05:59Z cfischer $
# Auto-generated from advisory DSA 3216-1 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_id(703216);
    script_version("$Revision: 6609 $");
    script_cve_id("CVE-2015-2928", "CVE-2015-2929");
    script_name("Debian Security Advisory DSA 3216-1 (tor - security update)");
    script_tag(name: "last_modification", value: "$Date: 2017-07-07 14:05:59 +0200 (Fri, 07 Jul 2017) $");
    script_tag(name: "creation_date", value: "2015-04-06 00:00:00 +0200 (Mon, 06 Apr 2015)");
    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_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-3216.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");
    script_tag(name: "affected",  value: "tor on Debian Linux");
    script_tag(name: "insight",   value: "Tor is a connection-based low-latency anonymous communication system.");
    script_tag(name: "solution",  value: "For the stable distribution (wheezy),
these problems have been fixed in version 0.2.4.27-1.

For the unstable distribution (sid), these problems have been fixed in
version 0.2.5.12-1.

For the experimental distribution, these problems have been
fixed in version 0.2.6.7-1.

We recommend that you upgrade your tor packages.");
    script_tag(name: "summary",   value: "Several vulnerabilities have
been discovered in Tor, a connection-based low-latency anonymous
communication system:

CVE-2015-2928disgleirio 
discovered that a malicious client could trigger an
assertion failure in a Tor instance providing a hidden service,
thus rendering the service inaccessible.

CVE-2015-2929DonnchaC 
discovered that Tor clients would crash with an
assertion failure upon parsing specially crafted hidden service
descriptors.

Introduction points would accept multiple INTRODUCE1 cells on one
circuit, making it inexpensive for an attacker to overload a hidden
service with introductions. Introduction points now no longer allow
multiple cells of that type on the same circuit.");
    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:"tor", ver:"0.2.4.27-1", rls_regex:"DEB7.[0-9]")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"tor-dbg", ver:"0.2.4.27-1", rls_regex:"DEB7.[0-9]")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"tor-geoipdb", ver:"0.2.4.27-1", rls_regex:"DEB7.[0-9]")) != NULL) {
    report += res;
}

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