CVE-2014-2986 Null dereference in n/a

Medium 5.5 Published 28 Apr 2014 Updated 6 Aug 2024

Local guest users on ARM systems can crash the Xen hypervisor host via a NULL pointer dereference in the virtual interrupt controller.

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-2014-2986?

CVE-2014-2986 is a medium-severity vulnerability in Xen Xen, published on 28 Apr 2014. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The vgic_distr_mmio_write function in the virtual guest interrupt controller (GIC) distributor (arch/arm/vgic.c) in Xen 4.4.x, when running on an ARM system, allows local guest users to cause a denial of service (NULL pointer dereference and host crash) via unspecified vectors.

Weakness: CWE-20

Which versions are affected by CVE-2014-2986?

It affects 1 product.

Products include Xen Xen.

How do I fix CVE-2014-2986?

Apply the vendor's patch.

Is CVE-2014-2986 being exploited?

There is no known exploitation of CVE-2014-2986 in the wild and no public exploit code.

All Xen Xen vulnerabilities

Sources

Also known as GHSA-6vcv-9gqw-j68m, UBUNTU-CVE-2014-2986.