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openvasCopyright (c) 2016 Greenbone Networks GmbH http://greenbone.netOPENVAS:703436
HistoryJan 08, 2016 - 12:00 a.m.

Debian Security Advisory DSA 3436-1 (openssl - security update)

2016-01-0800:00:00
Copyright (c) 2016 Greenbone Networks GmbH http://greenbone.net
plugins.openvas.org
16

0.003 Low

EPSS

Percentile

65.7%

Karthikeyan Bhargavan and Gaetan Leurent
at INRIA discovered a flaw in the TLS 1.2 protocol which could allow the MD5 hash
function to be used for signing ServerKeyExchange and Client Authentication packets
during a TLS handshake. A man-in-the-middle attacker could exploit this flaw to
conduct collision attacks to impersonate a TLS server or an
authenticated TLS client.

More information can be found at
https://www.mitls.org/pages/attacks/SLOTH

# OpenVAS Vulnerability Test
# $Id: deb_3436.nasl 6608 2017-07-07 12:05:05Z cfischer $
# Auto-generated from advisory DSA 3436-1 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(703436);
    script_version("$Revision: 6608 $");
    script_cve_id("CVE-2015-7575");
    script_name("Debian Security Advisory DSA 3436-1 (openssl - security update)");
    script_tag(name: "last_modification", value: "$Date: 2017-07-07 14:05:05 +0200 (Fri, 07 Jul 2017) $");
    script_tag(name: "creation_date", value: "2016-01-08 00:00:00 +0100 (Fri, 08 Jan 2016)");
    script_tag(name:"cvss_base", value:"4.3");
    script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:N");
    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-3436.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: "openssl on Debian Linux");
    script_tag(name: "insight",   value: "This package contains the openssl binary
and related tools.");
    script_tag(name: "solution",  value: "For the oldstable distribution (wheezy),
this problem has been fixed in version 1.0.1e-2+deb7u19.

For the stable distribution (jessie), the testing distribution (stretch)
and the unstable distribution (sid), this issue was already addressed in
version 1.0.1f-1.

We recommend that you upgrade your openssl packages.");
    script_tag(name: "summary",   value: "Karthikeyan Bhargavan and Gaetan Leurent
at INRIA discovered a flaw in the TLS 1.2 protocol which could allow the MD5 hash
function to be used for signing ServerKeyExchange and Client Authentication packets
during a TLS handshake. A man-in-the-middle attacker could exploit this flaw to
conduct collision attacks to impersonate a TLS server or an
authenticated TLS client.

More information can be found at
https://www.mitls.org/pages/attacks/SLOTH");
    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:"libssl-dev", ver:"1.0.1e-2+deb7u19", rls_regex:"DEB7.[0-9]+")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"libssl-doc", ver:"1.0.1e-2+deb7u19", rls_regex:"DEB7.[0-9]+")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"libssl1.0.0:amd64", ver:"1.0.1e-2+deb7u19", rls_regex:"DEB7.[0-9]+")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"libssl1.0.0:i386", ver:"1.0.1e-2+deb7u19", rls_regex:"DEB7.[0-9]+")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"libssl1.0.0-dbg:amd64", ver:"1.0.1e-2+deb7u19", rls_regex:"DEB7.[0-9]+")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"libssl1.0.0-dbg:i386", ver:"1.0.1e-2+deb7u19", rls_regex:"DEB7.[0-9]+")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"openssl", ver:"1.0.1e-2+deb7u19", rls_regex:"DEB7.[0-9]+")) != NULL) {
    report += res;
}

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

0.003 Low

EPSS

Percentile

65.7%

Related for OPENVAS:703436