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Category:   Device (Multimedia)  >   Apple TV Vendors:   Apple
Apple TV Bugs Let Remote Users Execute Arbitrary Code and Let Local Users View Memory Contents and Gain Elevated Privileges
SecurityTracker Alert ID:  1039952
SecurityTracker URL:  http://securitytracker.com/id/1039952
CVE Reference:   CVE-2017-13833, CVE-2017-13855, CVE-2017-13856, CVE-2017-13861, CVE-2017-13862, CVE-2017-13865, CVE-2017-13866, CVE-2017-13867, CVE-2017-13868, CVE-2017-13869, CVE-2017-13870, CVE-2017-13876, CVE-2017-7156, CVE-2017-7157   (Links to External Site)
Updated:  Dec 14 2017
Original Entry Date:  Dec 5 2017
Impact:   Disclosure of system information, Disclosure of user information, Execution of arbitrary code via local system, Execution of arbitrary code via network, Root access via local system, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 11.2
Description:   A vulnerability was reported in Apple TV. A remote user can execute arbitrary code. A local user can gain elevated privileges. A local user can view memory contents.

An application can trigger an out-of-bounds memory read error in the the kernel component to read restricted memory [CVE-2017-13833].

An application can trigger a memory handling error in the the kernel component to read restricted memory [CVE-2017-13855].

An application can trigger a memory corruption error in the IOSurface component to execute arbitrary code with kernel privileges [CVE-2017-13861].

An application can trigger a memory corruption error in the the kernel component to execute arbitrary code with kernel privileges [CVE-2017-13862].

An application can trigger a input validation flaw in the the kernel component to read restricted memory [CVE-2017-13865].

An application can trigger a memory corruption error in the the kernel component to execute arbitrary code with kernel privileges [CVE-2017-13867].

An application can trigger a input validation flaw in the the kernel component to read restricted memory [CVE-2017-13868, CVE-2017-13869].

An application can trigger a memory corruption error in the the kernel component to execute arbitrary code with kernel privileges [CVE-2017-13876].

A remote user can create specially crafted web content that, when loaded by the target user, will trigger a memory corruption error in the WebKit component to execute arbitrary code [CVE-2017-13856, CVE-2017-13866, CVE-2017-13870, CVE-2017-7156, CVE-2017-7157].

Brandon Azad, Jeonghoon Shin, an anonymous researcher, Ian Beer of Google Project Zero, and Jann Horn of Google Project Zero reported these vulnerabilities.

Impact:   A local user can gain elevated privileges.

A local user can view memory contents.

A remote user can create content that, when loaded by the target user, will execute arbitrary code on the target user's system.

Solution:   The vendor has issued a fix (11.2).

The vendor advisory is available at:

https://support.apple.com/en-us/HT208327

Vendor URL:  support.apple.com/en-us/HT208327 (Links to External Site)
Cause:   Access control error, Input validation error

Message History:   None.


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