STIGQter: STIG Summary: Oracle Linux 8 Security Technical Implementation Guide Version: 2 Release: 9 Benchmark Date: 01 Jul 2026:

OL 8 must implement non-executable data to protect its memory from unauthorized code execution.

DISA Rule

SV-248589r958928_rule

Vulnerability Number

V-248589

Group Title

SRG-OS-000433-GPOS-00192

Rule Version

OL08-00-010420

Severity

CAT II

CCI(s)

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

Weight

10

Fix Recommendation

Enable the NX bit execute protection in the system BIOS.

Check Contents

Verify the NX (no-execution) bit flag is set on the system with the following commands:

$ sudo dmesg | grep NX

[ 0.000000] NX (Execute Disable) protection: active

If "dmesg" does not show "NX (Execute Disable) protection" active, check the "cpuinfo" settings with the following command:

$ sudo less /proc/cpuinfo | grep -i flags
flags : fpu vme de pse tsc ms nx rdtscp lm constant_tsc

If "flags" does not contain the "nx" flag, this is a finding.

Vulnerability Number

V-248589

Documentable

False

Rule Version

OL08-00-010420

Severity Override Guidance

Verify the NX (no-execution) bit flag is set on the system with the following commands:

$ sudo dmesg | grep NX

[ 0.000000] NX (Execute Disable) protection: active

If "dmesg" does not show "NX (Execute Disable) protection" active, check the "cpuinfo" settings with the following command:

$ sudo less /proc/cpuinfo | grep -i flags
flags : fpu vme de pse tsc ms nx rdtscp lm constant_tsc

If "flags" does not contain the "nx" flag, this is a finding.

Check Content Reference

M

Target Key

5416