vulnerability

Amazon Linux AMI 2: CVE-2016-7426: Security patch for ntp (ALAS-2018-1009)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
Jan 13, 2017
Added
Apr 27, 2020
Modified
May 5, 2025

Description

NTP before 4.2.8p9 rate limits responses received from the configured sources when rate limiting for all associations is enabled, which allows remote attackers to cause a denial of service (prevent responses from the sources) by sending responses with a spoofed source address.

Solutions

amazon-linux-ami-2-upgrade-ntpamazon-linux-ami-2-upgrade-ntp-debuginfoamazon-linux-ami-2-upgrade-ntp-docamazon-linux-ami-2-upgrade-ntp-perlamazon-linux-ami-2-upgrade-ntpdateamazon-linux-ami-2-upgrade-sntp
Title
Rapid7 Labs

2026 Global Threat Landscape Report

The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.