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OL 9 must implement nonexecutable data to protect its memory from unauthorized code execution.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-271760OL09-00-002422SV-271760r1091992_ruleCCI-002824medium
Description
ExecShield uses the segmentation feature on all x86 systems to prevent execution in memory higher than a certain address. It writes an address as a limit in the code segment descriptor, to control where code can be executed, on a per-process basis. When the kernel places a process's memory regions such as the stack and heap higher than this address, the hardware prevents execution in that address range. This is enabled by default on the latest Oracle systems if supported by the hardware.
STIGDate
Oracle Linux 9 Security Technical Implementation Guide2026-02-17

Related Frameworks

1 mapping across 4 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (5) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

CFG-02Secure Baseline Configurations
1.00
CRY-01Use of Cryptographic Controls
1.00
DCH-01Data Protection
1.00
IAC-21Least Privilege
1.00
SEA-10Memory Protection
1.00
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (14) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-6(10)Prohibit Non-privileged Users from Executing Privileged Functions
1.00
AU-12Audit Record Generation
1.00
AU-3(1)Additional Audit Information
1.00
CM-6Configuration Settings
1.00
CM-7Least Functionality
1.00
CM-7(2)Prevent Program Execution
1.00
SC-2Separation of System and User Functionality
1.00
SC-3Security Function Isolation
1.00
SC-39Process Isolation
1.00
SC-5Denial-of-service Protection
1.00

+4 more (top 10 by confidence shown)

CCI1 mapping
CCI-002824
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

PR.DS-10
1.00

Who does this work

7 NICE work roles and 7 EC-Council certifications.

This is an inference across published mappings, not a single claim by anyone. This check maps to a control, which maps to a Cybersecurity Framework outcome, which NIST assigns to the work roles below. EC-Council separately maps its certifications to those same roles.

A certification prepares someone for a role. It is not evidence that a holder is qualified, and neither NIST nor EC-Council has stated that any certification here addresses this check.

Work-role assignments published by NIST (NICE Framework Components 2.2.0 and the CSF 2.0 OLIR crosswalk). Certification mappings published by EC-Council.

Details

Check Text (C-271760r1091992_chk)

Verify that OL 9 ExecShield is enabled on 64-bit systems with the following command: $ sudo dmesg | grep '[NX|DX]*protection' [ 0.000000] NX (Execute Disable) protection: active If "dmesg" does not show "NX (Execute Disable) protection" active, this is a finding.

Fix Text (F-75717r1091991_fix)

Update the GRUB 2 bootloader configuration. Run the following command: $ sudo grubby --update-kernel=ALL --remove-args=noexec