The set_mgmt_parameters function in item.py in cobbler before 2.2.2 allows context-dependent attackers to execute arbitrary code via vectors related to the use of the yaml.load function instead of the yaml.safe_load function, as demonstrated using Puppet.
https://bugzilla.novell.com/show_bug.cgi?id=757062
https://bugs.launchpad.net/ubuntu/oneiric/+source/cobbler/+bug/858883
http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00019.html