What is the vulnerability ID for this NTP vulnerability?

The vulnerability ID for this NTP vulnerability is USN-4229-2.

What is the description of the NTP vulnerability?

The NTP vulnerability allows an attacker to cause ntpq or ntpdc to crash or execute arbitrary code.

Which software versions are affected by this NTP vulnerability?

This NTP vulnerability affects Ubuntu 18.04 ESM with NTP version 1:4.2.8p10+dfsg-5ubuntu7.3+esm1, sntp version 1:4.2.8p10+dfsg-5ubuntu7.3+esm1, and ntpdate version 1:4.2.8p10+dfsg-5ubuntu7.3+esm1.

How can an attacker exploit this NTP vulnerability?

An attacker can exploit this NTP vulnerability by providing malicious arguments to ntpq or ntpdc.

Where can I find more information about this NTP vulnerability?

More information about this NTP vulnerability can be found at the following links: [CVE-2018-12327](https://ubuntu.com/security/CVE-2018-12327), [USN-4229-1](https://ubuntu.com/security/notices/USN-4229-1), [USN-4229-2](https://ubuntu.com/security/notices/USN-4229-2).

Vulnerability/
USN-4229-2

15/3/2021

USN-4229-2: NTP vulnerability

First published: Mon Mar 15 2021(Updated: )

USN-4229-1 fixed a vulnerability in NTP. This update provides the corresponding update for Ubuntu 18.04 ESM. Original advisory 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.

Affected Software	Affected Version	How to fix
All of
ubuntu/ntp	<1:4.2.8p10+dfsg-5ubuntu7.3+esm1	1:4.2.8p10+dfsg-5ubuntu7.3+esm1
	=18.04
All of
ubuntu/sntp	<1:4.2.8p10+dfsg-5ubuntu7.3+esm1	1:4.2.8p10+dfsg-5ubuntu7.3+esm1
	=18.04
All of
ubuntu/ntpdate	<1:4.2.8p10+dfsg-5ubuntu7.3+esm1	1:4.2.8p10+dfsg-5ubuntu7.3+esm1
	=18.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

CVE-2018-12327

Frequently Asked Questions

What is the vulnerability ID for this NTP vulnerability?
The vulnerability ID for this NTP vulnerability is USN-4229-2.
What is the description of the NTP vulnerability?
The NTP vulnerability allows an attacker to cause ntpq or ntpdc to crash or execute arbitrary code.
Which software versions are affected by this NTP vulnerability?
This NTP vulnerability affects Ubuntu 18.04 ESM with NTP version 1:4.2.8p10+dfsg-5ubuntu7.3+esm1, sntp version 1:4.2.8p10+dfsg-5ubuntu7.3+esm1, and ntpdate version 1:4.2.8p10+dfsg-5ubuntu7.3+esm1.
How can an attacker exploit this NTP vulnerability?
An attacker can exploit this NTP vulnerability by providing malicious arguments to ntpq or ntpdc.
Where can I find more information about this NTP vulnerability?
More information about this NTP vulnerability can be found at the following links: [CVE-2018-12327](https://ubuntu.com/security/CVE-2018-12327), [USN-4229-1](https://ubuntu.com/security/notices/USN-4229-1), [USN-4229-2](https://ubuntu.com/security/notices/USN-4229-2).

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