CCE-91133-9| Platform: cpe:/o:ubuntu:ubuntu_linux:14.04 | Date: (C)2017-03-14 (M)2023-07-04 |
Enable Randomized Virtual Memory Region Placement (Scored)
Set the system flag to force randomized virtual memory region placement.
Parameter:
[don't_use_ASLR/randomize base address for mmap'd areas/ditto, and also randomize the brk base address]
Technical Mechanism:
Randomly placing virtual memory regions will make it difficult to write memory page exploits as the memory placement will be consistently shifting.
Fix:
Add the following line to the /etc/sysctl.conf file.
kernel.randomize_va_space = 2
| CCSS Severity: | CCSS Metrics: |
| CCSS Score : 6.2 | Attack Vector: LOCAL |
| Exploit Score: 2.5 | Attack Complexity: LOW |
| Impact Score: 3.6 | Privileges Required: NONE |
| Severity: MEDIUM | User Interaction: NONE |
| Vector: AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | Scope: UNCHANGED |
| | Confidentiality: HIGH |
| | Integrity: NONE |
| | Availability: NONE |
| | |
References: | Resource Id | Reference |
|---|
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:33854 |
