CVE-2015-2752
xen - security update
EPSS 0.12%
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).
How to fix CVE-2015-2752
To remediate CVE-2015-2752, upgrade the affected package to a fixed version below.
- Debian/xen—upgrade to 4.4.1-9 or later
- Debian/xen—upgrade to 4.1.6.1-1+deb7u1 or later
Is CVE-2015-2752 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.4.1-9
- from 0, < 4.1.6.1-1+deb7u1