Ubuntu 12.10: 1692-1 Moderate: QEMU Denial of Service Threat

ubuntu

January 16, 2013

QEMU could be made to crash or run programs if it received specially crafted network traffic.

Summary

QEMU could be made to crash or run programs if it received specially

crafted network traffic.

Software Description:

- qemu-kvm: Machine emulator and virtualizer

Details:

It was discovered that QEMU incorrectly handled certain e1000 packet sizes.

In certain environments, an attacker may use this flaw in combination with

large packets to cause a denial of service or execute arbitrary code in the

guest.

Topics Covered

security advisory denial of service moderate severity ubuntu kvm network issue qemu

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 12.10:
  qemu-kvm                        1.2.0+noroms-0ubuntu2.12.10.2

Ubuntu 12.04 LTS:
  qemu-kvm                        1.0+noroms-0ubuntu14.7

Ubuntu 11.10:
  qemu-kvm                        0.14.1+noroms-0ubuntu6.6

Ubuntu 10.04 LTS:
  qemu-kvm                        0.12.3+noroms-0ubuntu9.21

After a standard system update you need to restart your virtual machines to
make all the necessary changes.