CVE-2017-15593 Denial of service in n/a
A memory leak in Xen allows guest OS users to cause a denial of service by mishandling reference counts.
- 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-2017-15593?
CVE-2017-15593 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 through 4.9.x allowing x86 PV guest OS users to cause a denial of service (memory leak) because reference counts are mishandled.
Weakness: CWE-772
Which versions are affected by CVE-2017-15593?
It affects 1 product.
Products include Xen Xen.
How do I fix CVE-2017-15593?
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-2017-15593 being exploited?
There is no known exploitation of CVE-2017-15593 in the wild and no public exploit code.
Other vulnerabilities in Xen Xen
Sources
Also known as ALPINE-CVE-2017-15593, DEBIAN-CVE-2017-15593, GHSA-j465-85mv-hcv9, UBUNTU-CVE-2017-15593.