CVE-2017-15591 Denial of service in n/a
Attackers controlling a stub domain can crash the host OS due to a missing range check in the DMOP map/unmap implementation.
- 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-2017-15591?
CVE-2017-15591 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 4.5.x through 4.9.x allowing attackers (who control a stub domain kernel or tool stack) to cause a denial of service (host OS crash) because of a missing comparison (of range start to range end) within the DMOP map/unmap implementation.
Weakness: CWE-20
Which versions are affected by CVE-2017-15591?
It affects 1 product.
Products include Xen Xen.
How do I fix CVE-2017-15591?
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-2017-15591 being exploited?
There is no known exploitation of CVE-2017-15591 in the wild and no public exploit code.
Other vulnerabilities in Xen Xen
Sources
Also known as ALPINE-CVE-2017-15591, DEBIAN-CVE-2017-15591, GHSA-6hjm-pwqm-vx85, UBUNTU-CVE-2017-15591.