About the security content of tvOS 9.2.1 - Apple Support

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.

tvOS 9.2.1

• CFNetwork Proxies

Available for: Apple TV (4th generation)

Impact: An attacker in a privileged network position may be able to leak sensitive user information

Description: An information leak existed in the handling of HTTP and HTTPS requests. This issue was addressed through improved URL handling.

CVE-ID

CVE-2016-1801 : Alex Chapman and Paul Stone of Context Information Security

• CommonCrypto

Available for: Apple TV (4th generation)

Impact: A malicious application may be able to leak sensitive user information

Description: An issue existed in the handling of return values in CCCrypt. This issue was addressed through improved key length management.

CVE-ID

CVE-2016-1802 : Klaus Rodewig

• CoreCapture

Available for: Apple TV (4th generation)

Impact: An application may be able to execute arbitrary code with kernel privileges

Description: A null pointer dereference was addressed through improved validation.

CVE-ID

CVE-2016-1803 : Ian Beer of Google Project Zero, daybreaker working with Trend Micro’s Zero Day Initiative

• Disk Images

Available for: Apple TV (4th generation)

Impact: An application may be able to read kernel memory

Description: A race condition was addressed through improved locking.

CVE-ID

CVE-2016-1807 : Ian Beer of Google Project Zero

• Disk Images

Available for: Apple TV (4th generation)

Impact: An application 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-2016-1808 : Moony Li (@Flyic) and Jack Tang (@jacktang310) of Trend Micro

• ImageIO

Available for: Apple TV (4th generation)

Impact: Processing a maliciously crafted image may lead to a denial of service

Description: A null pointer dereference was addressed through improved validation.

CVE-ID

CVE-2016-1811 : Lander Brandt (@landaire)

• IOAcceleratorFamily

Available for: Apple TV (4th generation)

Impact: An application may be able to execute arbitrary code with kernel privileges

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

CVE-ID

CVE-2016-1817 : Moony Li (@Flyic) and Jack Tang (@jacktang310) of Trend Micro working with Trend Micro’s Zero Day Initiative

CVE-2016-1818: Juwei Lin of TrendMicro, sweetchip@GRAYHASH working with Trend Micro’s Zero Day Initiative

Entry updated December 13, 2016

• IOAcceleratorFamily

Available for: Apple TV (4th generation)

Impact: An application may be able to cause a denial of service

Description: A null pointer dereference was addressed through improved locking.

CVE-ID

CVE-2016-1814 : Juwei Lin of TrendMicro

• IOAcceleratorFamily

Available for: Apple TV (4th generation)

Impact: An application may be able to execute arbitrary code with kernel privileges

Description: A memory corruption vulnerability was addressed through improved locking.

CVE-ID

CVE-2016-1819 : Ian Beer of Google Project Zero

• IOAcceleratorFamily

Available for: Apple TV (4th generation)

Impact: An application may be able to execute arbitrary code with kernel privileges

Description: A null pointer dereference was addressed through improved validation.

CVE-ID

CVE-2016-1813 : Ian Beer of Google Project Zero

• IOHIDFamily

Available for: Apple TV (4th generation)

Impact: An application may be able to execute arbitrary code with kernel privileges

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

CVE-ID

CVE-2016-1823 : Ian Beer of Google Project Zero

CVE-2016-1824 : Marco Grassi (@marcograss) of KeenLab (@keen_lab), Tencent

CVE-2016-4650 : Peter Pi of Trend Micro working with HPs Zero Day Initiative

• Kernel

Available for: Apple TV (4th generation)

Impact: An application may be able to execute arbitrary code with kernel privileges

Description: Multiple memory corruption issues were addressed through improved memory handling.

CVE-ID

CVE-2016-1827 : Brandon Azad

CVE-2016-1828 : Brandon Azad

CVE-2016-1829 : CESG

CVE-2016-1830 : Brandon Azad

• libc

Available for: Apple TV (4th generation)

Impact: An application may be able to cause unexpected application termination or arbitrary code execution

Description: A memory corruption issue was addressed through improved input validation.

CVE-ID

CVE-2016-1832 : Karl Williamson

• libxml2

Available for: Apple TV (4th generation)

Impact: Processing maliciously crafted XML may lead to an unexpected application termination or arbitrary code execution

Description: Multiple memory corruption issues were addressed through improved memory handling.

CVE-ID

CVE-2016-1833 : Mateusz Jurczyk

CVE-2016-1834 : Apple

CVE-2016-1836 : Wei Lei and Liu Yang of Nanyang Technological University

CVE-2016-1837 : Wei Lei and Liu Yang of Nanyang Technological University

CVE-2016-1838 : Mateusz Jurczyk

CVE-2016-1839 : Mateusz Jurczyk

CVE-2016-1840 : Kostya Serebryany

• libxslt

Available for: Apple TV (4th generation)

Impact: Processing maliciously crafted web content may lead to arbitrary code execution

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

CVE-ID

CVE-2016-1841 : Sebastian Apelt

• OpenGL

Available for: Apple TV (4th generation)

Impact: Processing maliciously crafted web content may lead to arbitrary code execution

Description: Multiple memory corruption issues were addressed through improved memory handling.

CVE-ID

CVE-2016-1847 : Tongbo Luo and Bo Qu of Palo Alto Networks

• WebKit

Available for: Apple TV (4th generation)

Impact: Processing maliciously crafted web content may disclose data from another website

Description: An insufficient taint tracking issue in the parsing of svg images was addressed through improved taint tracking.

CVE-ID

CVE-2016-1858 : an anonymous researcher

• WebKit

Available for: Apple TV (4th generation)

Impact: Processing maliciously crafted web content may lead to arbitrary code execution

Description: Multiple memory corruption issues were addressed through improved memory handling.

CVE-ID

CVE-2016-1854 : Anonymous working with Trend Micro’s Zero Day Initiative

CVE-2016-1855 : Tongbo Luo and Bo Qu of Palo Alto Networks

CVE-2016-1856 : lokihardt working with Trend Micro’s Zero Day Initiative

CVE-2016-1857 : Jeonghoon [email protected], Liang Chen, Zhen Feng, wushi of KeenLab, Tencent working with Trend Micro’s Zero Day Initiative

• WebKit Canvas

Available for: Apple TV (4th generation)

Impact: Processing maliciously crafted web content may lead to arbitrary code execution

Description: Multiple memory corruption issues were addressed through improved memory handling.

CVE-ID

CVE-2016-1859 : Liang Chen, wushi of KeenLab, Tencent working with Trend Micro’s Zero Day Initiative