USN-4229-1: NTP vulnerability

Publication date

9 January 2020

Overview

A security issue was fixed in ntpq and ntpdc.


Packages

  • ntp - Network Time Protocol daemon and utility programs

Details

It was discovered that ntpq and ntpdc incorrectly handled some arguments.
An attacker could possibly use this issue to cause ntpq or ntpdc to crash,
execute arbitrary code, or escalate to higher privileges.

It was discovered that ntpq and ntpdc incorrectly handled some arguments.
An attacker could possibly use this issue to cause ntpq or ntpdc to crash,
execute arbitrary code, or escalate to higher privileges.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
16.04 xenial ntp –  1:4.2.8p4+dfsg-3ubuntu5.10
14.04 trusty ntp –  1:4.2.6.p5+dfsg-3ubuntu2.14.04.13+esm1  
12.04 precise ntp –  1:4.2.6.p3+dfsg-1ubuntu3.13

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