==========================================================================
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