A procps-ng security update has been released for Ubuntu Linux 16.04 LTS, 18.04 LTS, 20.04 LTS, 22.04 LTS, 23.04, and 23.10.

[USN-6477-1] procps-ng vulnerability

==========================================================================
Ubuntu Security Notice USN-6477-1
November 14, 2023

procps vulnerability
==========================================================================

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

- Ubuntu 23.10
- Ubuntu 23.04
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS (Available with Ubuntu Pro)
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)

Summary:

procps-ng could be made to crash if it received specially crafted input.

Software Description:
- procps: /proc file system utilities

Details:

It was discovered that the procps-ng ps tool incorrectly handled memory.
An attacker could possibly use this issue to cause procps-ng to crash,
resulting in a denial of service.

Update instructions:

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

Ubuntu 23.10:
  procps                          2:4.0.3-1ubuntu1.23.10.1

Ubuntu 23.04:
  procps                          2:4.0.3-1ubuntu1.23.04.1

Ubuntu 22.04 LTS:
  procps                          2:3.3.17-6ubuntu2.1

Ubuntu 20.04 LTS:
  procps                          2:3.3.16-1ubuntu2.4

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
  procps                          2:3.3.12-3ubuntu1.2+esm1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
  procps                          2:3.3.10-4ubuntu2.5+esm1

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

References:
  https://ubuntu.com/security/notices/USN-6477-1
  CVE-2023-4016

Package Information:
https://launchpad.net/ubuntu/+source/procps/2:4.0.3-1ubuntu1.23.10.1
https://launchpad.net/ubuntu/+source/procps/2:4.0.3-1ubuntu1.23.04.1
  https://launchpad.net/ubuntu/+source/procps/2:3.3.17-6ubuntu2.1
  https://launchpad.net/ubuntu/+source/procps/2:3.3.16-1ubuntu2.4