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   Security Update 2016-007 (Yosemite) and 2016-003 Supplemental (El
   Capitan)

   Agen G. N. Schmitz

   Apple released [1]Security Update 2016-007 for OS X 10.10 Yosemite and
   Security Update 2016-003 for 10.11 El Capitan on 13 December 2016 with
   patches for a number of vulnerabilities, including one that could allow
   an application to execute arbitrary code with kernel privileges and
   another that could enable a local user to cause a system denial of
   service.

   On 17 January 2017, Apple released a new version of [2]Security Update
   2016-003 to address a kernel issue that could cause a Mac running El
   Capitan to occasionally freeze and become unresponsive. If you applied
   Security Update 2016-003 before 17 January 2017, [3]Security Update
   2016-003 Supplemental will appear in Software Update. (Free. For
   10.10.5 Yosemite, 498.1 MB; for 10.11.6 El Capitan, 717 MB (623.9 MB
   for Supplemental); [4]release notes)

References

   1. https://support.apple.com/kb/DL1902
   2. https://support.apple.com/kb/DL1907
   3. https://support.apple.com/kb/DL1908
   4. https://support.apple.com/en-us/HT207423

.