STIGQter: STIG Summary: Cloud Linux AlmaLinux OS 9 Security Technical Implementation Guide Version: 1 Release: 7 Benchmark Date: 01 Jul 2026:

AlmaLinux OS 9 must implement address space layout randomization (ASLR) to protect its memory from unauthorized code execution.

DISA Rule

SV-269452r1208318_rule

Vulnerability Number

V-269452

Group Title

SRG-OS-000433-GPOS-00193

Rule Version

ALMA-09-044900

Severity

CAT II

CCI(s)

CCI-002824 - Implement organization-defined controls to protect its memory from unauthorized code execution.

Weight

Fix Recommendation

Configure the system to enable ASLR with the following command:

$ echo 'kernel.randomize_va_space = 2' | sudo tee /etc/sysctl.d/60-aslr.conf

Reload settings from all system configuration files with the following command:

$ sudo sysctl --system

Check Contents

Verify AlmaLinux OS 9 is implementing ASLR with the following command:

$ sysctl kernel.randomize_va_space

kernel.randomize_va_space = 2

If "kernel.randomize_va_space" is not set to "2", this is a finding.

Check that the configuration files are present to enable this kernel parameter:

$ /usr/lib/systemd/systemd-sysctl --cat-config | egrep -v '^(#|;)' | grep -F kernel.randomize_va_space | tail -1

kernel.randomize_va_space = 2

If "kernel.randomize_va_space" is not set to "2", or is missing, this is a finding.

Vulnerability Number

V-269452

Documentable

False

Rule Version

ALMA-09-044900

Severity Override Guidance

Check Content Reference

Target Key

5664