CVE-2017-10917 Null dereference in n/a
Guest OS users can crash the host or read sensitive data via a NULL pointer dereference in Xen's event channel port validation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-10917?
CVE-2017-10917 is a critical 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
Xen through 4.8.x does not validate the port numbers of polled event channel ports, which allows guest OS users to cause a denial of service (NULL pointer dereference and host OS crash) or possibly obtain sensitive information, aka XSA-221.
Weakness: CWE-476
Which versions are affected by CVE-2017-10917?
It affects 1 product.
Products include Xen Xen.
How do I fix CVE-2017-10917?
Apply the vendor's patch.
Is CVE-2017-10917 being exploited?
There is no known exploitation of CVE-2017-10917 in the wild and no public exploit code.
Other vulnerabilities in Xen Xen
Sources
Also known as ALPINE-CVE-2017-10917, DEBIAN-CVE-2017-10917, GHSA-v32f-p355-m49p, UBUNTU-CVE-2017-10917.