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   Security Update 2016-006 (Yosemite) and 2016-002 (El Capitan)

   Agen G. N. Schmitz

   Apple has released [1]Security Update 2016-006 for OS X 10.10 Yosemite
   and [2]Security Update 2016-002 for 10.11 El Capitan, bringing a few
   select patches from the macOS 10.12.1 Sierra release (see '[3]macOS
   10.12.1 Sierra, watchOS 3.1, and tvOS 10.0.1 Mostly Fix Bugs,' 24
   October 2016) to the two older operating systems. For both systems, the
   Security Update addresses a couple of memory corruption issues (one in
   AppleGraphicsControl that could execute arbitrary code and another in
   NVIDIA graphics drivers that could cause a denial of service) and an
   SGI image parsing issue that could lead to the disclosure of process
   memory. (Free. For 10.10.5 Yosemite, 473.6 MB; for 10.11.6 El Capitan,
   414.9 MB; [4]release notes)

References

   1. https://support.apple.com/kb/DL1890
   2. https://support.apple.com/kb/DL1891
   3. http://tidbits.com/article/16853
   4. https://support.apple.com/en-us/HT207275

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