If you are running Ubuntu systems, then today may be a good day to think about patching.

Things being patched include:

libcurl, Apache, Squid, Firefox, Python crypto, libpng, Networkmanager, dah vulnerability, KMail

No doubt there is more.  For details check the Ubuntu security pages  www.ubuntu.com/usn

Cheers

Mark H

PS Don't forget to test on, well, test systems or at least a non critical machine.