CVE-2017-14431 Denial of service in n/a
Guest OS users can cause host memory exhaustion and denial of service by repeatedly rebooting due to skipped cleanup logic.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-14431?
CVE-2017-14431 is a medium-severity denial of service vulnerability in Xen Xen, published on 13 Sep 2017. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Memory leak in Xen 3.3 through 4.8.x allows guest OS users to cause a denial of service (ARM or x86 AMD host OS memory consumption) by continually rebooting, because certain cleanup is skipped if no pass-through device was ever assigned, aka XSA-207.
Weakness: CWE-772
Which versions are affected by CVE-2017-14431?
It affects 1 product.
Products include Xen Xen.
How do I fix CVE-2017-14431?
Apply the vendor's patch.
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-2017-14431 being exploited?
There is no known exploitation of CVE-2017-14431 in the wild and no public exploit code.
Other vulnerabilities in Xen Xen
Sources
Also known as DEBIAN-CVE-2017-14431, GHSA-5c92-xf29-3c94, UBUNTU-CVE-2017-14431.