The system must use available memory address randomization techniques.

From Red Hat Enterprise Linux 5 Security Technical Implementation Guide

Associated with IA controls: ECSC-1

Associated with: CCI-000366

SV-37979r1_rule The system must use available memory address randomization techniques.

Vulnerability discussion

Successful exploitation of buffer overflow vulnerabilities relies in some measure to having a predictable address structure of the executing program. Address randomization techniques reduce the probability of a successful exploit.

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Fix text

Edit the kernel boot parameters, or "/etc/sysctl.conf", and set exec-shield to "1". Reboot the system.

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