CVE-2015-2150 Denial of service in n/a
Local guest OS users can crash the host system by manipulating PCI command registers in Xen or Linux kernels.
- 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-2015-2150?
CVE-2015-2150 is a medium-severity denial of service vulnerability in Linux kernel, published on 12 Mar 2015. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Xen 3.3.x through 4.5.x and the Linux kernel through 3.19.1 do not properly restrict access to PCI command registers, which might allow local guest OS users to cause a denial of service (non-maskable interrupt and host crash) by disabling the (1) memory or (2) I/O decoding for a PCI Express device and then accessing the device, which triggers an Unsupported Request (UR) response.
Weakness: CWE-264
Which versions are affected by CVE-2015-2150?
It affects 3 products.
Products include Linux kernel, Ubuntu Ubuntu, Xen Xen.
How do I fix CVE-2015-2150?
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-2015-2150 being exploited?
There is no known exploitation of CVE-2015-2150 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2015-2150, GHSA-w7jv-fgrf-v497, UBUNTU-CVE-2015-2150.