The (1) XENMEM_decrease_reservation, (2) XENMEM_populate_physmap, and (3) XENMEM_exchange hypercalls in Xen 4.2 and earlier allow local guest administrators to cause a denial of service (long loop and hang) via a crafted extent_order value.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Xen | Xen | * | 4.2.0 (including) |
| Xen | Xen | 3.0.2 (including) | 3.0.2 (including) |
| Xen | Xen | 3.0.3 (including) | 3.0.3 (including) |
| Xen | Xen | 3.0.4 (including) | 3.0.4 (including) |
| Xen | Xen | 3.1.3 (including) | 3.1.3 (including) |
| Xen | Xen | 3.1.4 (including) | 3.1.4 (including) |
| Xen | Xen | 3.2.0 (including) | 3.2.0 (including) |
| Xen | Xen | 3.2.1 (including) | 3.2.1 (including) |
| Xen | Xen | 3.2.2 (including) | 3.2.2 (including) |
| Xen | Xen | 3.2.3 (including) | 3.2.3 (including) |
| Xen | Xen | 3.3.0 (including) | 3.3.0 (including) |
| Xen | Xen | 3.3.1 (including) | 3.3.1 (including) |
| Xen | Xen | 3.3.2 (including) | 3.3.2 (including) |
| Xen | Xen | 3.4.0 (including) | 3.4.0 (including) |
| Xen | Xen | 3.4.1 (including) | 3.4.1 (including) |
| Xen | Xen | 3.4.2 (including) | 3.4.2 (including) |
| Xen | Xen | 3.4.3 (including) | 3.4.3 (including) |
| Xen | Xen | 3.4.4 (including) | 3.4.4 (including) |
| Xen | Xen | 4.0.0 (including) | 4.0.0 (including) |
| Xen | Xen | 4.0.1 (including) | 4.0.1 (including) |
| Xen | Xen | 4.0.2 (including) | 4.0.2 (including) |
| Xen | Xen | 4.0.3 (including) | 4.0.3 (including) |
| Xen | Xen | 4.0.4 (including) | 4.0.4 (including) |
| Xen | Xen | 4.1.0 (including) | 4.1.0 (including) |
| Xen | Xen | 4.1.1 (including) | 4.1.1 (including) |
| Xen | Xen | 4.1.2 (including) | 4.1.2 (including) |
| Xen | Xen | 4.1.3 (including) | 4.1.3 (including) |