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The SUSE operating system must remove all outdated software components after updated versions have been installed.


Overview

Finding ID Version Rule ID IA Controls Severity
V-234863 SLES-15-010560 SV-234863r622137_rule Medium
Description
Previous versions of software components that are not removed from the information system after updates have been installed may be exploited by adversaries. Some information technology products may remove older versions of software automatically from the information system.
STIG Date
SUSE Linux Enterprise Server 15 Security Technical Implementation Guide 2021-03-04

Details

Check Text ( C-38051r618858_chk )
Verify the SUSE operating system removes all outdated software components after updated version have been installed by running the following command:

> grep -i upgraderemovedroppedpackages /etc/zypp/zypp.conf

solver.upgradeRemoveDroppedPackages = true

If "solver.upgradeRemoveDroppedPackages" is commented out, is set to "false", or is missing completely, this is a finding.
Fix Text (F-38014r618859_fix)
Configure the SUSE operating system to remove all outdated software components after an update by editing the following line in "/etc/zypp/zypp.conf" to match the one provided below:

solver.upgradeRemoveDroppedPackages = true