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

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. ...

CVE-2015-7851

Removed by vendor...

CVE-2015-7851: Improper Limitation of a Pathname to a Restricted Directory

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...

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...

EulerOS Virtualization 3.0.1.0 : ntp (EulerOS-SA-2019-1557)

According to the versions of the ntp packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - It was found that ntpd did not check whether a Message Authentication Code MAC was present in a received packet when ntpd was...

Denial Of Service (DoS)

Network Time Protocol NTP is vulnerable to denial of service DOS attacks. This occurs in the NTP server's parsing of configuration directives. A remote, authenticated attacker could cause ntpd to crash by sending a crafted message...

Denial Of Service (DoS)

ntp is vulnerable to denial of service. A NULL pointer dereference flaw was found in the way ntpd processed ntpdc reslist commands that queried restriction lists with a large amount of entries. A remote attacker could potentially use this flaw to crash ntpd...

Denial Of Service (DoS)

ntp is vulnerable to denial of service. An incomplete fix for CVE-2014-9750 resulted in improper value length checks in ntpcrypto.c. A packet with particular autokey operations that contained malicious data was not always being completely validated. A remote attacker could use a specially crafted...

Weak Authentication

The Network Time Protocol NTP is used to synchronize a computer's time with a referenced time source. Multiple buffer overflow flaws were discovered in ntpd's cryptorecv, ctlputdata, and configure functions. A remote attacker could use either of these flaws to send a specially crafted request...

[SECURITY] Fedora 29 Update: ntp-4.2.8p13-1.fc29

The Network Time Protocol NTP is used to synchronize a computer's time with another reference time source. This package includes ntpd a daemon which continuously adjusts system time and utilities used to query and configure the ntpd daemon. Perl scripts are in the ntp-perl package, ntpdate is in...

[SECURITY] Fedora 28 Update: ntp-4.2.8p13-1.fc28

The Network Time Protocol NTP is used to synchronize a computer's time with another reference time source. This package includes ntpd a daemon which continuously adjusts system time and utilities used to query and configure the ntpd daemon. Perl scripts are in the ntp-perl package, ntpdate is in...