CVE-2015-2752 Denial of service in n/a
Local users in x86 HVM domains can cause host CPU exhaustion and denial of service via crafted requests when PCI passthrough is enabled.
- 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-2015-2752?
CVE-2015-2752 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 1 Apr 2015. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The XEN_DOMCTL_memory_mapping hypercall in Xen 3.2.x through 4.5.x, when using a PCI passthrough device, is not preemptible, which allows local x86 HVM domain users to cause a denial of service (host CPU consumption) via a crafted request to the device model (qemu-dm).
Weakness: CWE-20
Which versions are affected by CVE-2015-2752?
It affects 2 products.
Products include Fedoraproject Fedora, Xen Xen.
How do I fix CVE-2015-2752?
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-2015-2752 being exploited?
There is no known exploitation of CVE-2015-2752 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as DEBIAN-CVE-2015-2752, GHSA-rf4p-xq4w-3f34, UBUNTU-CVE-2015-2752.