Copyright
All programs written for grml by the grml developers are released under the GNU General Public License. Debian packages of the grml software are available in the grml-repository, sources are available at sources.grml.org.
If not otherwise specified, the software on the ISO falls under the GNU General Public License. Take a look at /usr/share/doc/$PACKAGE/copyright for more details.
You can copy, modify, redistribute and even resell the CD without restrictions, as long as the recipient receives the same license.
Impressum
Michael Prokop Bienengasse 26/9 8020 Graz Austria / Österreich mika (at) grml.org