It was discovered that QEMU did not properly setup the virtio networkingfeatures available to its guests. A remote attacker could exploit this tocrash QEMU guests which use virtio networking on Linux kernels earlierthan 2.6.26.
The problem can be corrected by updating your system to the following
To update your system, please follow these instructions:
After a standard system upgrade you need to restart any QEMU guests toeffect the necessary changes.