The Xen hypervisor block backend driver for Linux kernel 2.6.18, when running on a 64-bit host with a 32-bit paravirtualized guest, allows local privileged users in the guest OS to cause a denial of service (host OS crash) via a request that specifies a large number of blocks.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Linux_kernel | Linux | 2.6.18 (including) | 2.6.18 (including) |
Red Hat Enterprise Linux 5 | RedHat | kernel-0:2.6.18-53.1.19.el5 | * |
Linux-source-2.6.22 | Ubuntu | gutsy | * |
Xen-3.0 | Ubuntu | upstream | * |
Xen-3.1 | Ubuntu | upstream | * |
Xen-3.2 | Ubuntu | upstream | * |
Xen-3.3 | Ubuntu | upstream | * |