Xen 4.2.x and 4.3.x, when using Intel VT-d for PCI passthrough, does not properly flush the TLB after clearing a present translation table entry, which allows local guest administrators to cause a denial of service or gain privileges via unspecified vectors related to an inverted boolean parameter.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Xen | Xen | 4.2.1 (including) | 4.2.1 (including) |
| Xen | Xen | 4.2.2 (including) | 4.2.2 (including) |
| Xen | Xen | 4.2.3 (including) | 4.2.3 (including) |
| Xen | Xen | 4.3.0 (including) | 4.3.0 (including) |
| Xen | Xen | 4.3.1 (including) | 4.3.1 (including) |