From: Apple Product Security
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APPLE-SA-2015-04-08-2 OS X 10.10.3 and Security Update 2015-004

OS X Yosemite 10.10.3 and Security Update 2015-004 are now available
and address the following:

Admin Framework
Available for:  OS X Yosemite v10.10 to v10.10.2
Impact:  A process may gain admin privileges without properly [...]