python-psutil vulnerability

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

* Ubuntu 19.10
* Ubuntu 19.04
* Ubuntu 18.04 LTS
* Ubuntu 16.04 LTS

Summary

psutil could be made to crash or run programs.

Software Description

* python-psutil - module providing convenience functions for
managing processes

Details

Riccardo Schirone discovered that psutil incorrectly handled
certain reference counting operations. An attacker could use this
issue to cause psutil 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 19.10
python-psutil - 5.5.1-1ubuntu0.19.10.1
python3-psutil - 5.5.1-1ubuntu0.19.10.1

Ubuntu 19.04
python-psutil - 5.5.1-1ubuntu0.19.04.1
python3-psutil - 5.5.1-1ubuntu0.19.04.1

Ubuntu 18.04 LTS
python-psutil - 5.4.2-1ubuntu0.1
python3-psutil - 5.4.2-1ubuntu0.1

Ubuntu 16.04 LTS
python-psutil - 3.4.2-1ubuntu0.1
python3-psutil - 3.4.2-1ubuntu0.1

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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

References

* CVE-2019-18874

--- Mystic BBS v1.12 A43 (Linux/64)
* Origin: BZ&BZ BBS (21:4/110)