A CUPS security update has been released for Ubuntu Linux 18.04 LTS, 20.04 LTS, 22.04 LTS, 22.10, and 23.04.

[USN-6128-1] CUPS vulnerability

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Ubuntu Security Notice USN-6128-1
June 01, 2023

cups vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 23.04
- Ubuntu 22.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

CUPS could be made to crash or run programs if it received specially
crafted network traffic.

Software Description:
- cups: Common UNIX Printing System(tm)

Details:

It was discovered that CUPS incorrectly handled logging. A remote attacker
could use this issue to cause CUPS to crash, resulting in a denial of
service, or possibly execute arbitrary code.

Update instructions:

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

Ubuntu 23.04:
cups 2.4.2-3ubuntu2.1

Ubuntu 22.10:
cups 2.4.2-1ubuntu2.1

Ubuntu 22.04 LTS:
cups 2.4.1op1-1ubuntu4.2

Ubuntu 20.04 LTS:
cups 2.3.1-9ubuntu1.3

Ubuntu 18.04 LTS:
cups 2.2.7-1ubuntu2.10

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

References:
https://ubuntu.com/security/notices/USN-6128-1
CVE-2023-32324

Package Information:
https://launchpad.net/ubuntu/+source/cups/2.4.2-3ubuntu2.1
https://launchpad.net/ubuntu/+source/cups/2.4.2-1ubuntu2.1
https://launchpad.net/ubuntu/+source/cups/2.4.1op1-1ubuntu4.2
https://launchpad.net/ubuntu/+source/cups/2.3.1-9ubuntu1.3
https://launchpad.net/ubuntu/+source/cups/2.2.7-1ubuntu2.10