A flaw was found in the way qemu v1.3.0 and later (virtio-rng) validates addresses when guest accesses the config space of a virtio device. If the virtio device has zero/small sized config space, such as virtio-rng, a privileged guest user could use this flaw to access the matching hosts qemu address space and thus increase their privileges on the host.
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Qemu | Qemu | 1.3.0 (including) | 1.4.2 (including) |
| Qemu | Qemu | 1.5.0-rc1 (including) | 1.5.0-rc1 (including) |
| Kvm | Ubuntu | hardy | * |
| Kvm | Ubuntu | upstream | * |
| Qemu | Ubuntu | hardy | * |
| Qemu | Ubuntu | raring | * |
| Qemu | Ubuntu | upstream | * |
| Qemu-kvm | Ubuntu | upstream | * |
| Xen-3.1 | Ubuntu | hardy | * |
| Xen-3.2 | Ubuntu | hardy | * |