Xen 3.0.3 through 4.1.x (possibly 4.1.6.1), 4.2.x (possibly 4.2.3), and 4.3.x (possibly 4.3.1) does not properly prevent access to hypercalls, which allows local guest users to gain privileges via a crafted application running in ring 1 or 2.
| Software | From | Fixed in |
|---|---|---|
| xen / xen | 3.2.0 | 3.2.0.x |
| xen / xen | 4.1.5 | 4.1.5.x |
| xen / xen | 3.2.1 | 3.2.1.x |
| xen / xen | 3.0.4 | 3.0.4.x |
| xen / xen | 3.4.0 | 3.4.0.x |
| xen / xen | 4.0.4 | 4.0.4.x |
| xen / xen | 4.0.2 | 4.0.2.x |
| xen / xen | 3.3.2 | 3.3.2.x |
| xen / xen | 4.1.2 | 4.1.2.x |
| xen / xen | 3.2.2 | 3.2.2.x |
| xen / xen | 3.4.4 | 3.4.4.x |
| xen / xen | 4.0.0 | 4.0.0.x |
| xen / xen | 4.1.1 | 4.1.1.x |
| xen / xen | 4.1.0 | 4.1.0.x |
| xen / xen | 3.4.3 | 3.4.3.x |
| xen / xen | 3.0.3 | 3.0.3.x |
| xen / xen | 4.1.3 | 4.1.3.x |
| xen / xen | 3.2.3 | 3.2.3.x |
| xen / xen | 4.1.6.1 | 4.1.6.1.x |
| xen / xen | 3.3.1 | 3.3.1.x |
| xen / xen | 3.4.2 | 3.4.2.x |
| xen / xen | 4.1.4 | 4.1.4.x |
| xen / xen | 3.4.1 | 3.4.1.x |
| xen / xen | 3.1.4 | 3.1.4.x |
| xen / xen | 3.3.0 | 3.3.0.x |
| xen / xen | 3.1.3 | 3.1.3.x |
| xen / xen | 4.0.1 | 4.0.1.x |
| xen / xen | 4.0.3 | 4.0.3.x |
| xen / xen | 4.2.2 | 4.2.2.x |
| xen / xen | 4.2.3 | 4.2.3.x |
| xen / xen | 4.2.0 | 4.2.0.x |
| xen / xen | 4.2.1 | 4.2.1.x |
| xen / xen | 4.3.0 | 4.3.0.x |
| xen / xen | 4.3.1 | 4.3.1.x |