AlmaLinux OS 9 must implement address space layout randomization (ASLR) to protect its memory from unauthorized code execution.
An XCCDF Rule
Description
ASLR makes it more difficult for an attacker to predict the location of attack code they have introduced into a process' address space during an attempt at exploitation. Additionally, ASLR makes it more difficult for an attacker to know the location of existing code to repurpose it using return oriented programming (ROP) techniques.
- ID
- SV-269452r1050335_rule
- Version
- ALMA-09-044900
- Severity
- Medium
- References
- Updated
Remediation Templates
A Manual Procedure
Configure the system to enable ASLR with the following command:
$ echo 'kernel.randomize_va_space = 2' > /etc/sysctl.d/60-aslr.conf
Reload settings from all system configuration files with the following command:
$ sysctl --system