The remote host is missing an update for the
###############################################################################
# OpenVAS Vulnerability Test
#
# RedHat Update for ntp RHSA-2017:0252-01
#
# Authors:
# System Generated Check
#
# Copyright:
# Copyright (C) 2017 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("1.3.6.1.4.1.25623.1.0.871756");
script_version("$Revision: 12497 $");
script_tag(name:"last_modification", value:"$Date: 2018-11-23 09:28:21 +0100 (Fri, 23 Nov 2018) $");
script_tag(name:"creation_date", value:"2017-02-07 05:44:27 +0100 (Tue, 07 Feb 2017)");
script_cve_id("CVE-2016-7426", "CVE-2016-7429", "CVE-2016-7433", "CVE-2016-9310",
"CVE-2016-9311");
script_tag(name:"cvss_base", value:"7.1");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:N/A:C");
script_tag(name:"qod_type", value:"package");
script_name("RedHat Update for ntp RHSA-2017:0252-01");
script_tag(name:"summary", value:"The remote host is missing an update for the 'ntp'
package(s) announced via the referenced advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"The Network Time Protocol (NTP) is used
to synchronize a computer's time with another referenced time source. These
packages include the ntpd service which continuously adjusts system time and
utilities used to query and configure the ntpd service.
Security Fix(es):
* It was found that when ntp is configured with rate limiting for all
associations the limits are also applied to responses received from its
configured sources. A remote attacker who knows the sources can cause a
denial of service by preventing ntpd from accepting valid responses from
its sources. (CVE-2016-7426)
* A flaw was found in the control mode functionality of ntpd. A remote
attacker could send a crafted control mode packet which could lead to
information disclosure or result in DDoS amplification attacks.
(CVE-2016-9310)
* A flaw was found in the way ntpd implemented the trap service. A remote
attacker could send a specially crafted packet to cause a null pointer
dereference that will crash ntpd, resulting in a denial of service.
(CVE-2016-9311)
* A flaw was found in the way ntpd running on a host with multiple network
interfaces handled certain server responses. A remote attacker could use
this flaw which would cause ntpd to not synchronize with the source.
(CVE-2016-7429)
* A flaw was found in the way ntpd calculated the root delay. A remote
attacker could send a specially-crafted spoofed packet to cause denial of
service or in some special cases even crash. (CVE-2016-7433)");
script_tag(name:"affected", value:"ntp on
Red Hat Enterprise Linux Desktop (v. 6),
Red Hat Enterprise Linux Server (v. 6),
Red Hat Enterprise Linux Server (v. 7),
Red Hat Enterprise Linux Workstation (v. 6)");
script_tag(name:"solution", value:"Please Install the Updated Packages.");
script_xref(name:"RHSA", value:"2017:0252-01");
script_xref(name:"URL", value:"https://www.redhat.com/archives/rhsa-announce/2017-February/msg00011.html");
script_tag(name:"solution_type", value:"VendorFix");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2017 Greenbone Networks GmbH");
script_family("Red Hat Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/rhel", "ssh/login/rpms", re:"ssh/login/release=RHENT_(7|6)");
exit(0);
}
include("revisions-lib.inc");
include("pkg-lib-rpm.inc");
release = rpm_get_ssh_release();
if(!release) exit(0);
res = "";
if(release == "RHENT_7")
{
if ((res = isrpmvuln(pkg:"ntp", rpm:"ntp~4.2.6p5~25.el7_3.1", rls:"RHENT_7")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"ntp-debuginfo", rpm:"ntp-debuginfo~4.2.6p5~25.el7_3.1", rls:"RHENT_7")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"ntpdate", rpm:"ntpdate~4.2.6p5~25.el7_3.1", rls:"RHENT_7")) != NULL)
{
security_message(data:res);
exit(0);
}
if (__pkg_match) exit(99);
exit(0);
}
if(release == "RHENT_6")
{
if ((res = isrpmvuln(pkg:"ntp", rpm:"ntp~4.2.6p5~10.el6_8.2", rls:"RHENT_6")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"ntp-debuginfo", rpm:"ntp-debuginfo~4.2.6p5~10.el6_8.2", rls:"RHENT_6")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"ntpdate", rpm:"ntpdate~4.2.6p5~10.el6_8.2", rls:"RHENT_6")) != NULL)
{
security_message(data:res);
exit(0);
}
if (__pkg_match) exit(99);
exit(0);
}