CVE-2014-3125 Denial of service in n/a

Medium 6.2 Published 2 May 2014 Updated 6 Aug 2024

Local guest users on ARM systems can crash the Xen hypervisor by improperly modifying hardware timers due to a context switch error.

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-2014-3125?

CVE-2014-3125 is a medium-severity denial of service vulnerability in Xen Xen, published on 2 May 2014. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Xen 4.4.x, when running on an ARM system, does not properly context switch the CNTKCTL_EL1 register, which allows local guest users to modify the hardware timers and cause a denial of service (crash) via unspecified vectors.

Weakness: CWE-264

Which versions are affected by CVE-2014-3125?

It affects 1 product.

Products include Xen Xen.

How do I fix CVE-2014-3125?

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-2014-3125 being exploited?

There is no known exploitation of CVE-2014-3125 in the wild and no public exploit code.

All Xen Xen vulnerabilities

Sources

Also known as GHSA-r57q-666q-xr8j, UBUNTU-CVE-2014-3125.