Date: Mon, 24 Oct 2016 12:18:42 -0700
From: Apple Product Security <product-security-noreply@...ts.apple.com>
To: security-announce@...ts.apple.com
Subject: [FD] APPLE-SA-2016-10-24-5 watchOS 3.1

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APPLE-SA-2016-10-24-5 watchOS 3.1

watchOS 3.1 is now available and addresses the following:

CoreGraphics
Available for:  All Apple Watch models
Impact: Viewing a maliciously crafted JPEG file may lead to arbitrary
code execution
Description: A memory corruption issue was addressed through improved
memory handling.
CVE-2016-4673: Marco Grassi (@marcograss) of KeenLab (@keen_lab),
Tencent

FontParser
Available for:  All Apple Watch models
Impact: Parsing a maliciously crafted font may disclose sensitive
user information
Description: An out-of-bounds read was addressed through improved
bounds checking.
CVE-2016-4660: Ke Liu of Tencent's Xuanwu Lab

Kernel
Available for:  All Apple Watch models
Impact: An application may be able to disclose kernel memory
Description: A validation issue was addressed through improved input
sanitization.
CVE-2016-4680: Max Bazaliy of Lookout and in7egral

libarchive
Available for:  All Apple Watch models
Impact: A malicious archive may be able to overwrite arbitrary files
Description: An issue existed within the path validation logic for
symlinks. This issue was addressed through improved path
sanitization.
CVE-2016-4679: Omer Medan of enSilo Ltd

libxpc
Available for:  All Apple Watch models
Impact: An application may be able to execute arbitrary code with
root privileges
Description: A logic issue was addressed through additional
restrictions.
CVE-2016-4675: Ian Beer of Google Project Zero

Sandbox Profiles
Available for:  All Apple Watch models
Impact: An application may be able to retrieve metadata of photo
directories
Description: An access issue was addressed through additional sandbox
restrictions on third party applications.
CVE-2016-4664: Razvan Deaconescu, Mihai Chiroiu (University
POLITEHNICA of Bucharest); Luke Deshotels, William Enck (North
Carolina State University); Lucas Vincenzo Davi, Ahmad-Reza Sadeghi
(TU Darmstadt)

Sandbox Profiles
Available for:  All Apple Watch models
Impact: An application may be able to retrieve metadata of audio
recording directories
Description: An access issue was addressed through additional sandbox
restrictions on third party applications.
CVE-2016-4665: Razvan Deaconescu, Mihai Chiroiu (University
POLITEHNICA of Bucharest); Luke Deshotels, William Enck (North
Carolina State University); Lucas Vincenzo Davi, Ahmad-Reza Sadeghi
(TU Darmstadt)

System Boot
Available for:  All Apple Watch models
Impact: A local user may be able to cause an unexpected system
termination or arbitrary code execution in the kernel
Description: Multiple input validation issues existed in MIG
generated code. These issues were addressed through improved
validation.
CVE-2016-4669: Ian Beer of Google Project Zero

Installation note:

Instructions on how to update your Apple Watch software are
available at https://support.apple.com/kb/HT204641

To check the version on your Apple Watch, open the Apple Watch app
on your iPhone and select "My Watch > General > About".

Alternatively, on your watch, select "My Watch > General > About".

Information will also be posted to the Apple Security Updates
web site: https://support.apple.com/kb/HT201222

This message is signed with Apple's Product Security PGP key,
and details are available at:
https://www.apple.com/support/security/pgp/
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