Apache Commons Daemon would allow unintended access to files over the network.
Wilfried Weissmann discovered that Apache Commons Daemon incorrectly dropped capabilities after starting. A remote attacker could possibly use this flaw to read certain files, bypassing the intended permissions.
12 December 2011
A security issue affects these releases of Ubuntu and its derivatives:
Apache Commons Daemon would allow unintended access to files over the network.
Wilfried Weissmann discovered that Apache Commons Daemon incorrectly dropped capabilities after starting. A remote attacker could possibly use this flaw to read certain files, bypassing the intended permissions.
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.
After a standard system update you need to restart applications which use Apache Commons Daemon, such as the Jetty web server, to make all the necessary changes.
Vulmon