CVE-2018-8956

CVE-2018-8956 affects ntp (ntpd) in ntp 4.2.8p10–4.2.8p13. A remote attacker can prevent a broadcast client from synchronizing with a broadcast NTP server by sending spoofed soofed mode 3/5 packets. Exploitation requires access to the same broadcast network or control of a slave that can relay pa...

CVE-2018-8956

ntpd in ntp 4.2.8p10, 4.2.8p11, 4.2.8p12 and 4.2.8p13 allow remote attackers to prevent a broadcast client from synchronizing its clock with a broadcast NTP server via soofed mode 3 and mode 5 packets. The attacker must either be a part of the same broadcast network or control a slave in that...

CVE-2020-11868

ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows an off-path attacker to block unauthenticated synchronization via a server mode packet with a spoofed source IP address, because transmissions are rescheduled even when a packet lacks a valid origin timestamp...

CVE-2020-11868

ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows an off-path attacker to block unauthenticated synchronization via a server mode packet with a spoofed source IP address, because transmissions are rescheduled even when a packet lacks a valid origin timestamp...

Design/Logic Flaw

ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows an off-path attacker to block unauthenticated synchronization via a server mode packet with a spoofed source IP address, because transmissions are rescheduled even when a packet lacks a valid origin timestamp...

CVE-2020-11868

ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows an off-path attacker to block unauthenticated synchronization via a server mode packet with a spoofed source IP address, because transmissions are rescheduled even when a packet lacks a valid origin timestamp...

CVE-2020-11868

ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows an off-path attacker to block unauthenticated synchronization via a server mode packet with a spoofed source IP address, because transmissions are rescheduled even when a packet lacks a valid origin timestamp...

CVE-2020-11868

NTOP vulnerability CVE-2020-11868 affects ntp in ntp (before 4.2.8p14 and 4.3.x before 4.3.100). An off-path attacker can block unauthenticated synchronization by sending a server-mode packet with a spoofed source IP, because transmissions can be rescheduled even when the origin timestamp is inva...

NTP ntpd Denial of Service Vulnerability (CNVD-2020-24010)

Network Time Protocol NTP is a network protocol that synchronizes the clocks of two computers by exchanging packets. ntpd is one of the operating system daemons that uses NTP to synchronize with the system time of a time server. A security vulnerability exists in ntpd in versions of NTP prior to...

Low: Red Hat Security Advisory: ntp security update

An update for ntp is now available for Red Hat Enterprise Linux 7.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...

Denial Of Service (DoS)

The Network Time Protocol NTP is vulnerable to Denial Of Service DoS. Robin Park and Dmitri Vinokurov discovered a flaw in the way ntpd handled certain malformed NTP packets. ntpd logged information about all such packets and replied with an NTP packet that was treated as malformed when received ...

Arbitrary Code Execution

ntpd is vulnerable to arbitrary code execution. A buffer overflow flaw was discovered in the ntpd daemon's NTPv4 authentication code. If ntpd was configured to use public key cryptography for NTP packet authentication, a remote attacker could use this flaw to send a specially-crafted request pack...

Linux: Read /etc/ntp.conf (KB)

The ntpd program is an operating system daemon which sets and maintains the system time of day in synchronism with Internet standard time servers. It is a complete implementation of the Network Time Protocol NTP version 4, but also retains compatibility with version 3, as defined by RFC-1305, and...

CVE-2015-7851

Directory traversal vulnerability in the saveconfig function in ntpd in ntpcontrol.c in NTP before 4.2.8p4, when used on systems that do not use '' or '/' characters for directory separation such as OpenVMS, allows remote authenticated users to overwrite arbitrary files...

CVE-2015-7851

CVE-2015-7851 is a directory traversal vulnerability in ntpd’s save_config path (ntp_control.c) affecting ntpd before 4.2.8p4. The issue arises on systems where directory separators differ (e.g., OpenVMS), allowing remote authenticated users to overwrite arbitrary files via crafted config saves. ...

Huawei EulerOS: Security Advisory for ntp (EulerOS-SA-2019-1222)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

EulerOS 2.0 SP3 : ntp (EulerOS-SA-2019-2637)

According to the versions of the ntp packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - NTP before 4.2.8p6 and 4.3.x before 4.3.90, when configured in broadcast mode, allows man-in-the-middle attackers to conduct replay attacks by...

NTPsec ntpd Out of Bounds Read (CVE-2019-6444)

An out of bounds read vulnerability has been reported in NTPsec ntpd. The vulnerability is due to insufficient validation of the address of a field to be read in a NTP packet. Successful exploitation could lead to disclosure of sensitive information...

EulerOS Virtualization for ARM 64 3.0.2.0 : ntp (EulerOS-SA-2019-1938)

According to the versions of the ntp packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities : - The Network Time Protocol NTP is used to synchronize a computer's time with another reference time source. This package...

NewStart CGSL MAIN 4.05 : ntp Multiple Vulnerabilities (NS-SA-2019-0114)

The remote NewStart CGSL host, running version MAIN 4.05, has ntp packages installed that are affected by multiple vulnerabilities: - 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...