About the security content of OS X El Capitan 10.11.3 and Security Update 2016-001

This document describes the security content of OS X El Capitan 10.11.3 and Security Update 2016-001.

For the protection of our customers, Apple does not disclose, discuss, or confirm security issues until a full investigation has occurred and any necessary patches or releases are available. To learn more about Apple Product Security, see the Apple Product Security website.

For information about the Apple Product Security PGP Key, see How to use the Apple Product Security PGP Key.

Where possible, CVE IDs are used to reference the vulnerabilities for further information.

To learn about other security updates, see Apple security updates.

OS X El Capitan 10.11.3 and Security Update 2016-001

• AppleGraphicsPowerManagement

  Available for: OS X El Capitan v10.11 to v10.11.2

  Impact: A local user may be able to execute arbitrary code with kernel privileges

  Description: A memory corruption issue was addressed through improved memory handling.

  CVE-ID

  CVE-2016-1716 : moony li of Trend Micro and Liang Chen and Sen Nie of KeenLab, Tencent

• Disk Images

  Available for: OS X El Capitan v10.11 to v10.11.2

  Impact: A local user may be able to execute arbitrary code with kernel privileges

  Description: A memory corruption issue existed in the parsing of disk images. This issue was addressed through improved memory handling.

  CVE-ID

  CVE-2016-1717 : Frank Graziano of Yahoo! Pentest Team

• IOAcceleratorFamily

  Available for: OS X El Capitan v10.11.0 to v10.11.2

  Impact: A local user may be able to execute arbitrary code with kernel privileges

  Description: A memory corruption issue was addressed through improved memory handling.

  CVE-ID

  CVE-2016-1718 : Juwei Lin Trend Micro working with HP's Zero Day Initiative

• IOHIDFamily

  Available for: OS X El Capitan v10.11 to v10.11.2

  Impact: A local user may be able to execute arbitrary code with kernel privileges

  Description: A memory corruption issue existed in an IOHIDFamily API. This issue was addressed through improved memory handling.

  CVE-ID

  CVE-2016-1719 : Ian Beer of Google Project Zero

• IOKit

  Available for: OS X El Capitan v10.11 to v10.11.2

  Impact: A local user may be able to execute arbitrary code with kernel privileges

  Description: A memory corruption issue was addressed through improved memory handling.

  CVE-ID

  CVE-2016-1720 : Ian Beer of Google Project Zero

• Kernel

  Available for: OS X El Capitan v10.11 to v10.11.2

  Impact: A local user may be able to execute arbitrary code with kernel privileges

  Description: A memory corruption issue was addressed through improved memory handling.

  CVE-ID

  CVE-2016-1721 : Ian Beer of Google Project Zero and Ju Zhu of Trend Micro

• libxslt

  Available for: OS X Mavericks v10.9.5, OS X Yosemite v10.10.5, and OS X El Capitan v10.11 to v10.11.2

  Impact: Visiting a maliciously crafted website may lead to arbitrary code execution

  Description: A type confusion issue existed in libxslt. This issue was addressed through improved memory handling.

  CVE-ID

  CVE-2015-7995 : puzzor

• OSA Scripts

  Available for: OS X El Capitan v10.11 to v10.11.2

  Impact: A quarantined application may be able to override OSA script libraries installed by the user

  Description: An issue existed when searching for scripting libraries. This issue was addressed through improved search order and quarantine checks.

  CVE-ID

  CVE-2016-1729 : an anonymous researcher

• syslog

  Available for: OS X El Capitan v10.11 to v10.11.2

  Impact: A local user may be able to execute arbitrary code with root privileges

  Description: A memory corruption issue was addressed through improved memory handling.

  CVE-ID

  CVE-2016-1722 : Joshua J. Drake and Nikias Bassen of Zimperium zLabs