Ubuntu Security Notice USN-1692-1
16th January, 2013
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 10.04 LTS
QEMU could be made to crash or run programs if it received specially crafted network traffic.
- qemu-kvm - Machine emulator and virtualizer
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
The problem can be corrected by updating your system to the following package version:
- Ubuntu 12.10:
- qemu-kvm 1.2.0+noroms-0ubuntu22.214.171.124
- 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
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to restart your virtual machines to
make all the necessary changes.