In case you hadn't noticed yet, they've updated one of our favorite tools, Wireshark.  The new version includes some security fixes in several of the protocol dissectors (including LDAP).  For the Mac fans, there is also an experimental package for MacOS X 10.5.5 and above.

References:

Release announcement: http://www.wireshark.org/news/20090408.html

Advisory: http://www.wireshark.org/security/wnpa-sec-2009-02.html