CVE-2016-1550

CVE-2016-1550 exists in the message authentication of libntp in ntp 4.2.8p4 and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92. The root cause is a non-constant-time memory comparison when validating the authentication digest on incoming packets, which can enable a timing attack. An attacker sen...

CVE-2016-1549

CVE-2016-1549 affects ntpd; a malicious authenticated peer can create arbitrarily-many ephemeral associations to win the clock selection and modify a victim’s clock. Affected versions: ntpd 4.2.8p4 and earlier. Remediation: upgrade ntp/ntpd to a fixed release (upstream fix vs. later advisories in...

CVE-2016-1548

An attacker can spoof a packet from a legitimate ntpd server with an origin timestamp that matches the peer-dst timestamp recorded for that server. After making this switch, the client in NTP 4.2.8p4 and earlier and NTPSec aa48d001683e5b791a743ec9c575aaf7d867a2b0c will reject all future legitimat...

NTP.org 'ntpd' Multiple Vulnerabilities

NTP.org SPDX-FileCopyrightText: 2017 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 CPE = "cpe:/a:ntp:ntp"; ifdescription scriptoid"1.3.6.1.4.1.25623.1.0.809858";...

Amazon Linux AMI : ntp (ALAS-2017-781)

The following security-related issues were resolved : CVE-2016-7426 : Client rate limiting and server responses CVE-2016-7429 : Attack on interface selection CVE-2016-7433 : Broken initial sync calculations regression CVE-2016-9310 : Mode 6 unauthenticated trap information disclosure and DDoS...

CVE-2016-9312

ntpd in NTP before 4.2.8p9, when running on Windows, allows remote attackers to cause a denial of service via a large UDP packet...

Medium: ntp

Issue Overview: The following security-related issues were resolved: CVE-2016-7426: Client rate limiting and server responses CVE-2016-7429: Attack on interface selection CVE-2016-7433: Broken initial sync calculations regression CVE-2016-9310: Mode 6 unauthenticated trap information disclosure a...

How to Setup Time on XenServer Manually When There Is No NTP Server

This is a situation where you don't have an AD , DC ,DNS or an NTP server in the environment to point the servers for syncing time...

BusyBox: Denial of service

Background BusyBox is a set of tools for embedded systems and is a replacement for GNU Coreutils. Description The recvandprocessclientpkt function in networking/ntpd.c in BusyBox allows remote attackers to cause a Denial of Service CPU and bandwidth consumption via a forged NTP packet, which...

CVE-2016-9042

An exploitable denial of service vulnerability exists in the origin timestamp check functionality of ntpd 4.2.8p9. A specially crafted unauthenticated network packet can be used to reset the expected origin timestamp for target peers. Legitimate replies from targeted peers will fail the origin...

openSUSE Security Update : ntp (openSUSE-2016-1525)

This update for ntp fixes the following issues : ntp was updated to 4.2.8p9. Security issues fixed : - CVE-2016-9311, CVE-2016-9310, bsc1011377: Mode 6 unauthenticated trap information disclosure and DDoS vector. - CVE-2016-7427, bsc1011390: Broadcast Mode Replay Prevention DoS. - CVE-2016-7428,...

FreeBSD : FreeBSD -- Multiple vulnerabilities of ntp (fcedcdbb-c86e-11e6-b1cf-14dae9d210b8)

Multiple vulnerabilities have been discovered in the NTP suite : CVE-2016-9311: Trap crash, Reported by Matthew Van Gundy of Cisco ASIG. CVE-2016-9310: Mode 6 unauthenticated trap information disclosure and DDoS vector. Reported by Matthew Van Gundy of Cisco ASIG. CVE-2016-7427: Broadcast Mode...

F5 Networks BIG-IP : NTP vulnerability (K05046514)

NTP before 4.2.8p6 and 4.3.x before 4.3.90 allows remote attackers to cause a denial of service client-server association tear down by sending broadcast packets with invalid authentication to a broadcast client. CVE-2015-7979 C Tenable Network Security, Inc. The descriptive text and package check...

FreeBSD-SA-16:39.ntp

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-16:39.ntp Security Advisory The FreeBSD Project Topic: Multiple vulnerabilities of ntp Category: contrib Module: ntp Announced: 2016-12-22 Credits: Network Time...

FreeBSD -- Multiple vulnerabilities of ntp

Problem Description: Multiple vulnerabilities have been discovered in the NTP suite: CVE-2016-9311: Trap crash, Reported by Matthew Van Gundy of Cisco ASIG. CVE-2016-9310: Mode 6 unauthenticated trap information disclosure and DDoS vector. Reported by Matthew Van Gundy of Cisco ASIG. CVE-2016-742...

F5 Networks BIG-IP : NTP vulnerabilities (K06288381)

CVE-2015-7977 ntpd in NTP before 4.2.8p6 and 4.3.x before 4.3.90 allows remote attackers to cause a denial of service NULL pointer dereference via a ntpdc reslist command. CVE-2015-7978 NTP before 4.2.8p6 and 4.3.0 before 4.3.90 allows a remote attackers to cause a denial of service stack...

F5 Networks BIG-IP : NTP vulnerability (K01324833)

The getresponse function in ntpq in NTP versions before 4.2.8p9 and 4.3.x before 4.3.90 allows remote attackers to cause a denial of service infinite loop via crafted packets with incorrect values. CVE-2015-8158 C Tenable Network Security, Inc. The descriptive text and package checks in this plug...

F5 Networks BIG-IP : NTP vulnerability (K11251130)

An off-path attacker can cause a preemptible client association to be demobilized in NTP 4.2.8p4 and earlier and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 by sending a crypto NAK packet to a victim client with a spoofed source address of an existing associated peer. This is true even if...

SUSE SLES11 Security Update : ntp (SUSE-SU-2016:3193-1)

This update for ntp fixes the following issues : - Simplify ntpd's search for its own executable to prevent AppArmor warnings bsc956365. Security issues fixed update to 4.2.8p9 : - CVE-2016-9311, CVE-2016-9310, bsc1011377: Mode 6 unauthenticated trap information disclosure and DDoS vector. -...

F5 Networks BIG-IP : NTP vulnerability (K03331206)

ntpd in NTP 4.x before 4.2.8p8, when autokey is enabled, allows remote attackers to cause a denial of service peer-variable clearing and association outage by sending 1 a spoofed crypto-NAK packet or 2 a packet with an incorrect MAC value at a certain time.CVE-2016-4955 C Tenable Network Security...