rsync could be made to consume resources if it received specially crafted network traffic.
Ryan Finnie discovered that the rsync daemon incorrectly handled invalid usernames. A remote attacker could use this issue to cause rsync to consume resources, resulting in a denial of service.
23 April 2014
A security issue affects these releases of Ubuntu and its derivatives:
rsync could be made to consume resources if it received specially crafted network traffic.
Ryan Finnie discovered that the rsync daemon incorrectly handled invalid usernames. A remote attacker could use this issue to cause rsync to consume resources, resulting in a denial of service.
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
Vulmon