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openvasCopyright (C) 2015 Greenbone Networks GmbHOPENVAS:1361412562310882208
HistoryJun 26, 2015 - 12:00 a.m.

CentOS Update for nss-util CESA-2015:1185 centos6

2015-06-2600:00:00
Copyright (C) 2015 Greenbone Networks GmbH
plugins.openvas.org
20

0.975 High

EPSS

Percentile

100.0%

Check the version of nss-util

###############################################################################
# OpenVAS Vulnerability Test
#
# CentOS Update for nss-util CESA-2015:1185 centos6
#
# Authors:
# System Generated Check
#
# Copyright:
# Copyright (C) 2015 Greenbone Networks GmbH, http://www.greenbone.net
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), as published by the Free Software Foundation.
#
# 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("1.3.6.1.4.1.25623.1.0.882208");
  script_version("$Revision: 14058 $");
  script_cve_id("CVE-2015-4000");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:N");
  script_tag(name:"last_modification", value:"$Date: 2019-03-08 14:25:52 +0100 (Fri, 08 Mar 2019) $");
  script_tag(name:"creation_date", value:"2015-06-26 06:24:29 +0200 (Fri, 26 Jun 2015)");
  script_tag(name:"qod_type", value:"package");
  script_name("CentOS Update for nss-util CESA-2015:1185 centos6");
  script_tag(name:"summary", value:"Check the version of nss-util");
  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
  script_tag(name:"insight", value:"Network Security Services (NSS) is a set
  of libraries designed to support cross-platform development of security-enabled
  client and server applications.

A flaw was found in the way the TLS protocol composes the Diffie-Hellman
(DH) key exchange. A man-in-the-middle attacker could use this flaw to
force the use of weak 512 bit export-grade keys during the key exchange,
allowing them do decrypt all traffic. (CVE-2015-4000)

Note: This update forces the TLS/SSL client implementation in NSS to
reject DH key sizes below 768 bits, which prevents sessions to be
downgraded to export-grade keys. Future updates may raise this limit to
1024 bits.

The nss and nss-util packages have been upgraded to upstream versions
3.19.1. The upgraded versions provide a number of bug fixes and
enhancements over the previous versions.

Users of nss and nss-util are advised to upgrade to these updated packages,
which fix these security flaws, bugs, and add these enhancements.");
  script_tag(name:"affected", value:"nss-util on CentOS 6");
  script_tag(name:"solution", value:"Please install the updated packages.");
  script_xref(name:"CESA", value:"2015:1185");
  script_xref(name:"URL", value:"http://lists.centos.org/pipermail/centos-announce/2015-June/021219.html");
  script_tag(name:"solution_type", value:"VendorFix");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2015 Greenbone Networks GmbH");
  script_family("CentOS Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/centos", "ssh/login/rpms", re:"ssh/login/release=CentOS6");
  exit(0);
}

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

release = rpm_get_ssh_release();
if(!release)
  exit(0);

res = "";

if(release == "CentOS6")
{

  if ((res = isrpmvuln(pkg:"nss-util", rpm:"nss-util~3.19.1~1.el6_6", rls:"CentOS6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"nss-util-devel", rpm:"nss-util-devel~3.19.1~1.el6_6", rls:"CentOS6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99);
  exit(0);
}