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.
Metrics
CVSS 2.0 2.1/10
AV:L/AC:L/Au:N/C:N/I:N/A:PWeakness enumeration
Affected software
No affected versions have been published.
Timeline
- Published
- Oct 30, 2015
- Last modified
- Jun 17, 2026
- NVD status
- Modified