Debian Security Advisory DSA 3184-1 (gnupg - security update)

# OpenVAS Vulnerability Test
# $Id: deb_3184.nasl 6609 2017-07-07 12:05:59Z cfischer $
# Auto-generated from advisory DSA 3184-1 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(703184);
    script_version("$Revision: 6609 $");
    script_cve_id("CVE-2014-3591", "CVE-2015-0837", "CVE-2015-1606");
    script_name("Debian Security Advisory DSA 3184-1 (gnupg - security update)");
    script_tag(name: "last_modification", value: "$Date: 2017-07-07 14:05:59 +0200 (Fri, 07 Jul 2017) $");
    script_tag(name: "creation_date", value: "2015-03-12 00:00:00 +0100 (Thu, 12 Mar 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_xref(name: "URL", value: "http://www.debian.org/security/2015/dsa-3184.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: "gnupg on Debian Linux");
    script_tag(name: "insight",   value: "GnuPG is GNU's tool for secure
communication and data storage. It can be used to encrypt data and to create
digital signatures. It includes an advanced key management facility and is
compliant with the proposed OpenPGP Internet standard as described in RFC 4880.");
    script_tag(name: "solution",  value: "For the stable distribution (wheezy),
these problems have been fixed in version 1.4.12-7+deb7u7.

For the upcoming stable distribution (jessie), these problems have been
fixed in version 1.4.18-7.

For the unstable distribution (sid), these problems have been fixed in
version 1.4.18-7.

We recommend that you upgrade your gnupg packages.");
    script_tag(name: "summary",   value: "Multiple vulnerabilities were discovered
in GnuPG, the GNU Privacy Guard:

CVE-2014-3591 
The Elgamal decryption routine was susceptible to a side-channel
attack discovered by researchers of Tel Aviv University. Ciphertext
blinding was enabled to counteract it. Note that this may have a
quite noticeable impact on Elgamal decryption performance.

CVE-2015-0837 
The modular exponentiation routine mpi_powm() was susceptible to a
side-channel attack caused by data-dependent timing variations when
accessing its internal pre-computed table.

CVE-2015-1606 
The keyring parsing code did not properly reject certain packet
types not belonging in a keyring, which caused an access to memory
already freed. This could allow remote attackers to cause a denial
of service (crash) via crafted keyring files.");
    script_tag(name: "vuldetect", value: "This check tests the installed software
version using the apt package manager.");
    script_tag(name:"qod_type", value:"package");
    exit(0);
}

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

res = "";
report = "";
if ((res = isdpkgvuln(pkg:"gnupg", ver:"1.4.12-7+deb7u7", rls_regex:"DEB7.[0-9]")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"gnupg-curl", ver:"1.4.12-7+deb7u7", rls_regex:"DEB7.[0-9]")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"gpgv", ver:"1.4.12-7+deb7u7", rls_regex:"DEB7.[0-9]")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"gpgv-win32", ver:"1.4.12-7+deb7u7", rls_regex:"DEB7.[0-9]")) != NULL) {
    report += res;
}

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