CVE-2017-10922 Denial of service in n/a
Guest OS users can cause a denial of service by mishandling MMIO region grant references in the Xen hypervisor.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-10922?
CVE-2017-10922 is a high-severity denial of service vulnerability in Xen Xen, published on 5 Jul 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The grant-table feature in Xen through 4.8.x mishandles MMIO region grant references, which allows guest OS users to cause a denial of service (loss of grant trackability), aka XSA-224 bug 3.
Weakness: CWE-400
Which versions are affected by CVE-2017-10922?
It affects 1 product.
Products include Xen Xen.
How do I fix CVE-2017-10922?
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-2017-10922 being exploited?
There is no known exploitation of CVE-2017-10922 in the wild and no public exploit code.
Other vulnerabilities in Xen Xen
Sources
Also known as ALPINE-CVE-2017-10922, DEBIAN-CVE-2017-10922, GHSA-mcx2-83hc-5298, UBUNTU-CVE-2017-10922.