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Ubuntu: New Apache Commons Daemon packages fix security vulnerabilities

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. Updated packages are available from security.ubuntu.com.

==========================================================================
Ubuntu Security Notice USN-1298-1
December 12, 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 versions:

Ubuntu 11.10:
 libcommons-daemon-java          1.0.6-1ubuntu0.1

Ubuntu 11.04:
 libcommons-daemon-java          1.0.4-1ubuntu0.1

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.

References:
 http://www.ubuntu.com/usn/usn-1298-1
 CVE-2011-2729

Package Information:
 https://launchpad.net/ubuntu/+source/commons-daemon/1.0.6-1ubuntu0.1
 https://launchpad.net/ubuntu/+source/commons-daemon/1.0.4-1ubuntu0.1
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