A python-psutil security update has been released for Debian GNU/Linux 8 LTS to address multiple double free vulnerabilities

Package : python-psutil
Version : 2.1.1-1+deb8u1
CVE ID : CVE-2019-18874
Debian Bug : #944605

It was discovered that there were multiple double free
vulnerabilities in python-psutil, a Python module providing
convenience functions for accessing system process data.

This was caused by incorrect reference counting handling within
for/while loops that convert system data into said Python objects.

For Debian 8 "Jessie", this issue has been fixed in python-psutil
version 2.1.1-1+deb8u1.

We recommend that you upgrade your python-psutil packages.