Release Notes

Open Source Used In AsyncOS 8.8 for Cisco Web Security Appliances
10
While nothing in particular says that a Kerberos4 library must use any
particular license, the one I've tried and used successfully so far
(kth-krb4) is partly Original BSD-licensed with the announcement
clause. Some of the code in libcurl that is written to deal with
Kerberos4 is Modified BSD-licensed.
MIT Kerberos http://web.mit.edu/kerberos/www/dist/
(May be used for GSS support) MIT licensed, that shouldn't collide
with any other parts.
Heimdal http://www.pdc.kth.se/heimdal/
(May be used for GSS support) Heimdal is Original BSD licensed with
the announcement clause.
GNU GSS http://www.gnu.org/software/gss/
(May be used for GSS support) GNU GSS is GPL licensed. Note that you
may not distribute binary curl packages that uses this if you build
curl to also link and use any Original BSD licensed libraries!
fbopenssl
(Used for SPNEGO support) Unclear license. Based on its name, I assume
that it uses the OpenSSL license and thus shares the same issues as
described for OpenSSL above.
libidn http://josefsson.org/libidn/
(Used for IDNA support) Uses the GNU Lesser General Public
License [3]. LGPL is a variation of GPL with slightly less aggressive
"copyleft". This license requires more requirements to be met when
distributing binaries, see the license for details. Also note that if
you distribute a binary that includes this library, you must also
include the full LGPL license text. Please properly point out what
parts of the distributed package that the license addresses.
OpenLDAP http://www.openldap.org/software/release/license.html
(Used for LDAP support) Uses a Modified BSD-style license. Since
libcurl uses OpenLDAP as a shared library only, I have not heard of
anyone that ships OpenLDAP linked with libcurl in an app.
libssh2 http://www.libssh2.org/
(Used for scp and sftp support) libssh2 uses a Modified BSD-style