What is the severity of USN-6164-2?

The severity of USN-6164-2 is not specified in the description.

c-ares is a C library for asynchronous DNS requests.

What vulnerabilities does USN-6164-2 fix?

USN-6164-2 fixes several vulnerabilities in c-ares.

How can I fix the vulnerabilities in c-ares?

To fix the vulnerabilities in c-ares, you should update to the specified version provided in the update.

Where can I find more information about USN-6164-2?

You can find more information about USN-6164-2 on the Ubuntu security website.

Vulnerability/
USN-6164-2

11/9/2023

USN-6164-2: c-ares vulnerabilities

First published: Mon Sep 11 2023(Updated: )

USN-6164-1 fixed several vulnerabilities in c-ares. This update provides the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. Original advisory details: Hannes Moesl discovered that c-ares incorrectly handled certain ipv6 addresses. An attacker could use this issue to cause c-ares to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2023-31130) Xiang Li discovered that c-ares incorrectly handled certain UDP packets. A remote attacker could possibly use this issue to cause c-res to crash, resulting in a denial of service. (CVE-2023-32067)

Affected Software	Affected Version	How to fix
All of
ubuntu/libc-ares2	<1.14.0-1ubuntu0.2+esm1	1.14.0-1ubuntu0.2+esm1
	=18.04
All of
ubuntu/libc-ares2	<1.10.0-3ubuntu0.2+esm2	1.10.0-3ubuntu0.2+esm2
	=16.04

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

What is the severity of USN-6164-2?
The severity of USN-6164-2 is not specified in the description.
What is c-ares?
c-ares is a C library for asynchronous DNS requests.
What vulnerabilities does USN-6164-2 fix?
USN-6164-2 fixes several vulnerabilities in c-ares.
How can I fix the vulnerabilities in c-ares?
To fix the vulnerabilities in c-ares, you should update to the specified version provided in the update.
Where can I find more information about USN-6164-2?
You can find more information about USN-6164-2 on the Ubuntu security website.

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