Dan Rosenberg discovered that FUSE did not correctly check mount locations. A local attacker, with access to use FUSE, could unmount arbitrary locations, leading to a denial of service.
The problem can be corrected by updating your system to the following package versions:
28 January 2010
A security issue affects these releases of Ubuntu and its derivatives:
Dan Rosenberg discovered that FUSE did not correctly check mount locations. A local attacker, with access to use FUSE, could unmount arbitrary locations, leading to 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 upgrade is sufficient to effect the necessary changes.
Vulmon