Xen 4.4.x, when running on an ARM system, does not properly context switch the CNTKCTL_EL1 register, which allows local guest users to modify the hardware timers and cause a denial of service (crash) via unspecified vectors.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Xen | Xen | 4.4.0 (including) | 4.4.0 (including) |
Xen | Xen | 4.4.0-rc1 (including) | 4.4.0-rc1 (including) |
Xen | Ubuntu | devel | * |
Xen | Ubuntu | trusty | * |
Xen-3.3 | Ubuntu | upstream | * |