The compatibility mode hypercall argument translation in Xen 3.3.x through 4.4.x, when running on a 64-bit hypervisor, allows local 32-bit HVM guests to cause a denial of service (host crash) via vectors involving altering the high halves of registers while in 64-bit mode.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Debian_linux | Debian | 7.0 (including) | 7.0 (including) |
Xen | Ubuntu | devel | * |
Xen | Ubuntu | precise | * |
Xen | Ubuntu | trusty | * |
Xen | Ubuntu | upstream | * |
Xen | Ubuntu | utopic | * |
Xen | Ubuntu | vivid | * |
Xen-3.3 | Ubuntu | lucid | * |
Xen-3.3 | Ubuntu | upstream | * |