The LXC driver (lxc/lxc_driver.c) in libvirt 1.0.1 through 1.2.1 allows local users to (1) delete arbitrary host devices via the virDomainDeviceDettach API and a symlink attack on /dev in the container; (2) create arbitrary nodes (mknod) via the virDomainDeviceAttach API and a symlink attack on /dev in the container; and cause a denial of service (shutdown or reboot host OS) via the (3) virDomainShutdown or (4) virDomainReboot API and a symlink attack on /dev/initctl in the container, related to paths under /proc/$PID/root and the virInitctlSetRunLevel function.
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Libvirt | Redhat | 1.0.1 (including) | 1.0.1 (including) |
| Libvirt | Redhat | 1.0.2 (including) | 1.0.2 (including) |
| Libvirt | Redhat | 1.0.3 (including) | 1.0.3 (including) |
| Libvirt | Redhat | 1.0.4 (including) | 1.0.4 (including) |
| Libvirt | Redhat | 1.0.5 (including) | 1.0.5 (including) |
| Libvirt | Redhat | 1.0.5.1 (including) | 1.0.5.1 (including) |
| Libvirt | Redhat | 1.0.5.2 (including) | 1.0.5.2 (including) |
| Libvirt | Redhat | 1.0.5.3 (including) | 1.0.5.3 (including) |
| Libvirt | Redhat | 1.0.5.4 (including) | 1.0.5.4 (including) |
| Libvirt | Redhat | 1.0.5.5 (including) | 1.0.5.5 (including) |
| Libvirt | Redhat | 1.0.5.6 (including) | 1.0.5.6 (including) |
| Libvirt | Redhat | 1.0.6 (including) | 1.0.6 (including) |
| Libvirt | Redhat | 1.1.0 (including) | 1.1.0 (including) |
| Libvirt | Redhat | 1.1.1 (including) | 1.1.1 (including) |
| Libvirt | Redhat | 1.1.2 (including) | 1.1.2 (including) |
| Libvirt | Redhat | 1.1.3 (including) | 1.1.3 (including) |
| Libvirt | Redhat | 1.1.4 (including) | 1.1.4 (including) |
| Libvirt | Redhat | 1.2.0 (including) | 1.2.0 (including) |
| Libvirt | Redhat | 1.2.1 (including) | 1.2.1 (including) |
| Fedora | Fedoraproject | 20 (including) | 20 (including) |
| Libvirt | Ubuntu | raring | * |
| Libvirt | Ubuntu | saucy | * |