Authentication flaw

The protocol engine in ntp 4.2.6 before 4.2.8p11 allows a remote attackers to cause a denial of service disruption by continually sending a packet with a zero-origin timestamp and source IP address of the "other side" of an interleaved association causing the victim ntpd to reset its association...

CVE-2018-7184

CVE-2018-7184 affects ntpd 4.2.8p4 through 4.2.8p10, where a zero-origin timestamp in certain packets can disrupt the association and cause DoS. This is described as a result of an incomplete fix for CVE-2015-7704. Remediation available: upgrade to ntpd 4.2.8p11 or later; several advisories (e.g....

CVE-2018-7185

The protocol engine in ntp 4.2.6 before 4.2.8p11 allows a remote attackers to cause a denial of service disruption by continually sending a packet with a zero-origin timestamp and source IP address of the "other side" of an interleaved association causing the victim ntpd to reset its association...

EUVD-2018-18927

The protocol engine in ntp 4.2.6 before 4.2.8p11 allows a remote attackers to cause a denial of service disruption by continually sending a packet with a zero-origin timestamp and source IP address of the "other side" of an interleaved association causing the victim ntpd to reset its association...

CVE-2018-7184

ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the "received" timestamp, which allows remote attackers to cause a denial of service disruption by sending a packet with a zero-origin timestamp causing the association to reset and setting the contents of the packet as the mos...

CVE-2018-7170

CVE-2018-7170 affects ntp’s ntpd component in ntp 4.2.x before 4.2.8p7 and 4.3.x before 4.3.92. An authenticated attacker who knows a private symmetric key can create many ephemeral associations to win the clock selection (Sybil attack) and modify a victim’s clock. The issue arises from an incomp...

CVE-2018-7185

CVE-2018-7185 affects ntp protocol engine in ntp 4.2.6 before 4.2.8p11, where a remote attacker can send crafted packets with a zero-origin timestamp and the source IP of the other side of an interleaved association to cause the victim ntpd to reset its association, producing a denial of service....

CVE-2018-7185

The protocol engine in ntp 4.2.6 before 4.2.8p11 allows a remote attackers to cause a denial of service disruption by continually sending a packet with a zero-origin timestamp and source IP address of the "other side" of an interleaved association causing the victim ntpd to reset its association...

CVE-2018-7170

ntpd in ntp 4.2.x before 4.2.8p7 and 4.3.x before 4.3.92 allows authenticated users that know the private symmetric key to create arbitrarily-many ephemeral associations in order to win the clock selection of ntpd and modify a victim's clock via a Sybil attack. This issue exists because of an...

1.7 Tbps DDoS Attack — ​Memcached UDP Reflections Set New Record

The bar has been raised. As more amplified attacks were expected following the record-breaking 1.35 Tbps Github DDoS attack, someone has just set a new record after only four days — 1.7 Tbps DDoS attack. Network security and monitoring company Arbor Networks claims that its ATLAS global traffic a...

CVE-2018-7182

The ctlgetitem method in ntpd in ntp-4.2.8p6 before 4.2.8p11 allows remote attackers to cause a denial of service out-of-bounds read via a crafted mode 6 packet with a ntpd instance from 4.2.8p6 through 4.2.8p10...

CVE-2018-7184

ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the "received" timestamp, which allows remote attackers to cause a denial of service disruption by sending a packet with a zero-origin timestamp causing the association to reset and setting the contents of the packet as the mos...

CVE-2018-7185

The protocol engine in ntp 4.2.6 before 4.2.8p11 allows a remote attackers to cause a denial of service disruption by continually sending a packet with a zero-origin timestamp and source IP address of the "other side" of an interleaved association causing the victim ntpd to reset its association...

Slackware 14.0 / 14.1 / 14.2 / current : ntp (SSA:2018-060-02)

New ntp packages are available for Slackware 14.0, 14.1, 14.2, and -current to fix security issues. C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were extracted from Slackware Security Advisory 2018-060-02. The text itself is copyright C Slackware Linux,...

[slackware-security] ntp

New ntp packages are available for Slackware 14.0, 14.1, 14.2, and -current to fix security issues. Here are the details from the Slackware 14.2 ChangeLog: patches/packages/ntp-4.2.8p11-i586-1slack14.2.txz: Upgraded. This release addresses five security issues in ntpd: LOW/MEDIUM: Sec 3012 /...

CVE-2018-7183

Buffer overflow in the decodearr function in ntpq in ntp 4.2.8p6 through 4.2.8p10 allows remote attackers to execute arbitrary code by leveraging an ntpq query and sending a response with a crafted array...

CVE-2018-7185

The protocol engine in ntp 4.2.6 before 4.2.8p11 allows a remote attackers to cause a denial of service disruption by continually sending a packet with a zero-origin timestamp and source IP address of the "other side" of an interleaved association causing the victim ntpd to reset its association...

CVE-2018-7184

ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the "received" timestamp, which allows remote attackers to cause a denial of service disruption by sending a packet with a zero-origin timestamp causing the association to reset and setting the contents of the packet as the mos...

FreeBSD : ntp -- multiple vulnerabilities (af485ef4-1c58-11e8-8477-d05099c0ae8c)

Network Time Foundation reports : The NTP Project at Network Time Foundation is releasing ntp-4.2.8p11. This release addresses five security issues in ntpd : - LOW/MEDIUM: Sec 3012 / CVE-2016-1549 / VU961909: Sybil vulnerability: ephemeral association attack - INFO/MEDIUM: Sec 3412 / CVE-2018-718...

Arista Networks EOS Multiple Vulnerabilities (SA0019)

The version of Arista Networks EOS running on the remote device is affected by multiple vulnerabilities : - A flaw exists in NTP in the receive function within file ntpd/ntpproto.c that allows packets with an origin timestamp of zero to bypass security checks. An unauthenticated, remote attacker...