CVE-2017-15596 Denial of service in n/a
ARM guest OS users can cause a denial of service by preventing physical CPU usage due to lock mishandling in Xen.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-15596?
CVE-2017-15596 is a medium-severity denial of service vulnerability in Xen Xen, published on 18 Oct 2017. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An issue was discovered in Xen 4.4.x through 4.9.x allowing ARM guest OS users to cause a denial of service (prevent physical CPU usage) because of lock mishandling upon detection of an add-to-physmap error.
Weakness: CWE-400
Which versions are affected by CVE-2017-15596?
It affects 1 product.
Products include Xen Xen.
How do I fix CVE-2017-15596?
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-2017-15596 being exploited?
There is no known exploitation of CVE-2017-15596 in the wild and no public exploit code.
Other vulnerabilities in Xen Xen
Sources
Also known as ALPINE-CVE-2017-15596, DEBIAN-CVE-2017-15596, GHSA-9vx2-2784-8w2r, UBUNTU-CVE-2017-15596.