CVE-2016-9040 Denial of service in SmartOS
An attacker can cause memory exhaustion and system denial of service in Joyent SmartOS via a specific Ioctl call in the Hyprlofs file system.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2016-9040?
CVE-2016-9040 is a medium-severity denial of service vulnerability in Joyent SmartOS, published on 7 Sep 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An exploitable denial of service exists in the the Joyent SmartOS OS 20161110T013148Z Hyprlofs file system. The vulnerability is present in the Ioctl system call with the command HYPRLOFSADDENTRIES when used with a 32 bit model. An attacker can cause a buffer to be allocated and never freed. When repeatedly exploit this will result in memory exhaustion, resulting in a full system denial of service.
Weakness: CWE-400
Which versions are affected by CVE-2016-9040?
It affects 1 product.
Products include Joyent Smartos.
How do I fix CVE-2016-9040?
No fix has been published for CVE-2016-9040 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2016-9040 being exploited?
There is no known exploitation of CVE-2016-9040 in the wild and no public exploit code.
Other vulnerabilities in Joyent SmartOS
Sources
Also known as GHSA-9x7x-fv7w-r8pq.