Im verlinkten Support-Dokument lässt sich das "Sicherheitsupdate 2015-003 1.0" momentan noch nicht finden, weswegen auch unbekannt ist, welche Sicherheitslücken Apple mit der Aktualisierung schloss.

APPLE-SA-2015-03-19-1 Security Update 2015-003

Subject: APPLE-SA-2015-03-19-1 Security Update 2015-003
From: Apple Product Security <email@hidden>
Date: Thu, 19 Mar 2015 14:02:09 -0700

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APPLE-SA-2015-03-19-1 Security Update 2015-003

Security Update 2015-003 is now available and addresses the
following:

iCloud Keychain
Available for: OS X Yosemite v10.10.2
Impact: An attacker with a privileged network position may be able
to execute arbitrary code
Description: Multiple buffer overflows existed in the handling of
data during iCloud Keychain recovery. These issues were addressed
through improved bounds checking.
CVE-ID
CVE-2015-1065 : Andrey Belenko of NowSecure

IOSurface
Available for: OS X Yosemite v10.10.2
Impact: A malicious application may be able to execute arbitrary
code with system privileges
Description: A type confusion issue existed in IOSurface's handling
of serialized objects. The issue was addressed through additional
type checking.
CVE-ID
CVE-2015-1061 : Ian Beer of Google Project Zero

Note: Security Update 2015-003 includes the content of
Security Update 2015-002. For further details see
"About Security Update 2015-002" at:
https://support.apple.com/en-us/HT204413


Security Update 2015-003 may be obtained from the Mac App Store
or Apple's Software Downloads web site:
http://www.apple.com/support/downloads/

Information will also be posted to the Apple Security Updates
web site: https://support.apple.com/kb/HT1222

This message is signed with Apple's Product Security PGP key,
and details are available at:
https://www.apple.com/support/security/pgp/

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