CVE-2015-7813
EPSS 0.08%
Description
Xen 4.4.x, 4.5.x, and 4.6.x does not limit the number of printk console messages when reporting unimplemented hypercalls, which allows local guests to cause a denial of service via a sequence of (1) HYPERVISOR_physdev_op hypercalls, which are not properly handled in the do_physdev_op function in arch/arm/physdev.c, or (2) HYPERVISOR_hvm_op hypercalls, which are not properly handled in the do_hvm_op function in arch/arm/hvm.c.
How to fix CVE-2015-7813
To remediate CVE-2015-7813, upgrade the affected package to a fixed version below.
- Debian/xen—upgrade to 4.6.0-1 or later
Is CVE-2015-7813 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 4.6.0-1