14 DAY TRIAL // In a security notice, Canonical published details about a libvirt vulnerability for its Ubuntu 13.04 (Raring Ringtail) operating system.
According to Canonical, libvirt could have been made to crash if it received specially crafted network traffic.
It has been discovered that libvirt incorrectly handled certain storage pool requests. A remote attacker could have used this issue to cause libvirt to consume resources, resulting in a denial of service.
For a more detailed description of the security problems, you can visit Canonical's security notification.
The security flaws can be fixed if you upgrade your system(s) to the latest libraw5 package, specific to each distribution. To apply the update, run the Update Manager application.
In general, a standard system update will make all the necessary changes. A system restart will not be necessary to implement the changes.