Ubuntu Security Notice USN-1298-1
12th December, 2011
commons-daemon vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 11.10
- Ubuntu 11.04
Summary
Apache Commons Daemon would allow unintended access to files over the network.
Software description
- commons-daemon - wrapper to launch Java applications as daemons
Details
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.
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 11.10:
- libcommons-daemon-java 1.0.6-1ubuntu0.1
- Ubuntu 11.04:
- libcommons-daemon-java 1.0.4-1ubuntu0.1
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.