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Security Update 2018-002 (Sierra and El Capitan)

Apple has released Security Update 2018-002 for macOS 10.12 Sierra and 10.11 El Capitan, patching security vulnerabilities that the company addressed in 10.13.4 High Sierra (see “macOS 10.13.4 High Sierra Adds Business Chat and External GPU Support,” 30 March 2018). Both of the older operating systems also address a logic issue with disk images that could launch an application after mounting, resolve a race condition in iCloud Drive that could grant an application elevated privileges, and fix a memory corruption issue that could allow an application to execute arbitrary code with system privileges. (Free. For 10.12.6 Sierra, 779.6 MB; for 10.11.6 El Capitan, 869.6 MB; security content release notes)

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