UBUNTU-CVE-2016-1547

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...

CVE-2016-1547

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...

PT-2016-4855 · Ntp +8 · Ntp +8

Name of the Vulnerable Software and Affected Versions: NTP versions 4.2.8p4 and earlier NTPSec version a5fb34b9cc89b92a8fef2f459004865c93bb7f92 Description: An off-path attacker can cause a preemptible client association to be demobilized by sending a crypto NAK packet to a victim client with a...

Network Time Protocol Crypto-NAK Preemptible Association Denial of Service Vulnerability

SUMMARY An off-path attacker can cause a preemptible client association to be demobilized 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 authentication is enabled. Furthermore, if the attacker keeps sending cryp...

Network Time Protocol Authenticated Preemptable Modes Denial-of-Service Vulnerability

CERT VU357792 Summary Expected Behavior: The protocol should prevent against off-path Denial of Service attacks in authenticated broadcast and other modes which create preemptable associations, such as: multicast client, manycast client, pool client modes, and associations configured with the...

Network Time Protocol ntpq and ntpdc Origin Timestamp Disclosure Vulnerability

CERT VU357792 Summary To prevent off-path attackers from impersonating legitimate peers, clients require that the origin timestamp in a received response packet match the transmit timestamp from its last request to a given peer. Under assumption that only the recipient of the request packet will...

F5 Networks BIG-IP : NTP vulnerability (K17566)

The ntpd client in NTP 4.x before 4.2.8p4 and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service via a number of crafted 'KOD' messages. CVE-2015-7704 Impact An off-path attacker can send a crafted Kiss of Death KoD packet to the client, which will increase the client's...

NAK to the Future: NTP Symmetric Association Authentication Bypass Vulnerability

Talos Vulnerability Report TALOS-2015-0069 NAK to the Future: NTP Symmetric Association Authentication Bypass Vulnerability October 21, 2015 CVE Number CVE-2015-7871 Summary Unauthenticated off-path attackers can force ntpd processes to peer with malicious time sources of the attacker’s choosing...

krb5 security and bug fix update

1.6.1-36.el55.3 - add upstream patch to fix a few use-after-free bugs, including one in kadmind CVE-2010-0629, 578185 1.6.1-36.el55.2 - pull changes to libkrb5 to properly handle and chase off-path referrals back from 1.7 574387...