-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

APPLE-SA-2018-10-30-10 Additional information for
APPLE-SA-2018-9-24-5 watchOS 5

watchOS 5 addresses the following:

CFNetwork
Available for: Apple Watch Series 1 and later
Impact: An application may be able to execute arbitrary code with
system privileges
Description: A memory corruption issue was addressed with improved
memory handling.
CVE-2018-4126: Bruno Keith (@bkth_) working with Trend Micro's Zero
Day Initiative
Entry added October 30, 2018

CoreFoundation
Available for: Apple Watch Series 1 and later
Impact: A malicious application may be able to elevate privileges
Description: A memory corruption issue was addressed with improved
input validation.
CVE-2018-4412: The UK's National Cyber Security Centre (NCSC)
Entry added October 30, 2018

CoreFoundation
Available for: Apple Watch Series 1 and later
Impact: An application may be able to gain elevated privileges
Description: A memory corruption issue was addressed with improved
input validation.
CVE-2018-4414: The UK's National Cyber Security Centre (NCSC)
Entry added October 30, 2018

CoreText
Available for: Apple Watch Series 1 and later
Impact: Processing a maliciously crafted text file may lead to
arbitrary code execution
Description: A use after free issue was addressed with improved
memory management.
CVE-2018-4347: an anonymous researcher
Entry added October 30, 2018

Grand Central Dispatch
Available for: Apple Watch Series 1 and later
Impact: An application may be able to execute arbitrary code with
system privileges
Description: A memory corruption issue was addressed with improved
memory handling.
CVE-2018-4426: Brandon Azad
Entry added October 30, 2018

Heimdal
Available for: Apple Watch Series 1 and later
Impact: An application may be able to execute arbitrary code with
system privileges
Description: A memory corruption issue was addressed with improved
memory handling.
CVE-2018-4331: Brandon Azad
CVE-2018-4332: Brandon Azad
CVE-2018-4343: Brandon Azad
Entry added October 30, 2018

IOHIDFamily
Available for: Apple Watch Series 1 and later
Impact: A malicious application may be able to execute arbitrary code
with kernel privileges
Description: A memory corruption issue was addressed with improved
input validation
CVE-2018-4408: Ian Beer of Google Project Zero
Entry added October 30, 2018

IOKit
Available for: Apple Watch Series 1 and later
Impact: A malicious application may be able to break out of its
sandbox
Description: A memory corruption issue was addressed with improved
memory handling.
CVE-2018-4341: Ian Beer of Google Project Zero
CVE-2018-4354: Ian Beer of Google Project Zero
Entry added October 30, 2018

IOKit
Available for: Apple Watch Series 1 and later
Impact: An application may be able to execute arbitrary code with
kernel privileges
Description: A memory corruption issue was addressed with improved
state management.
CVE-2018-4383: Apple
Entry added October 30, 2018

IOUserEthernet
Available for: Apple Watch Series 1 and later
Impact: An application may be able to execute arbitrary code with
kernel privileges
Description: A memory corruption issue was addressed with improved
memory handling.
CVE-2018-4401: Apple
Entry added October 30, 2018

iTunes Store
Available for: Apple Watch Series 1 and later
Impact: An attacker in a privileged network position may be able to
spoof password prompts in the iTunes Store
Description: An input validation issue was addressed with improved
input validation.
CVE-2018-4305: Jerry Decime

Kernel
Available for: Apple Watch Series 1 and later
Impact: A malicious application may be able to leak sensitive user
information
Description: An access issue existed with privileged API calls. This
issue was addressed with additional restrictions.
CVE-2018-4399: Fabiano Anemone (@anoane)
Entry added October 30, 2018

Kernel
Available for: Apple Watch Series 1 and later
Impact: An application may be able to execute arbitrary code with
kernel privileges
Description: A memory corruption issue was addressed with improved
memory handling.
CVE-2018-4336: Brandon Azad
CVE-2018-4337: Ian Beer of Google Project Zero
CVE-2018-4340: Mohamed Ghannam (@_simo36)
CVE-2018-4344: The UK's National Cyber Security Centre (NCSC)
CVE-2018-4425: cc working with Trend Micro's Zero Day Initiative,
Juwei Lin (@panicaII) of Trend Micro working with Trend Micro's Zero
Day Initiative
Entry added October 30, 2018

Kernel
Available for: Apple Watch Series 1 and later
Impact: An application may be able to read restricted memory
Description: An input validation issue existed in the kernel. This
issue was addressed with improved input validation.
CVE-2018-4363: Ian Beer of Google Project Zero

Kernel
Available for: Apple Watch Series 1 and later
Impact: An attacker in a privileged network position may be able to
execute arbitrary code
Description: A memory corruption issue was addressed with improved
validation.
CVE-2018-4407: Kevin Backhouse of Semmle Ltd.
Entry added October 30, 2018

Safari
Available for: Apple Watch Series 1 and later
Impact: A local user may be able to discover websites a user has
visited
Description: A consistency issue existed in the handling of
application snapshots. The issue was addressed with improved handling
of application snapshots.
CVE-2018-4313: 11 anonymous researchers, David Scott, Enes Mert
Ulu of Abdullah MA1/4rAide AzA1/4nenek Anadolu Lisesi -
Ankara/TA1/4rkiye, Mehmet Ferit DaAtan of Van YA1/4zA1/4ncA1/4 YA+-l
University, Metin Altug Karakaya of Kaliptus Medical Organization,
Vinodh Swami of Western Governor's University (WGU)

Security
Available for: Apple Watch Series 1 and later
Impact: A local user may be able to cause a denial of service
Description: This issue was addressed with improved checks.
CVE-2018-4395: Patrick Wardle of Digita Security
Entry added October 30, 2018

Security
Available for: Apple Watch Series 1 and later
Impact: An attacker may be able to exploit weaknesses in the RC4
cryptographic algorithm
Description: This issue was addressed by removing RC4.
CVE-2016-1777: Pepi Zawodsky

Symptom Framework
Available for: Apple Watch Series 1 and later
Impact: An application may be able to read restricted memory
Description: An out-of-bounds read was addressed with improved bounds
checking.
CVE-2018-4203: Bruno Keith (@bkth_) working with Trend Micro's Zero
Day Initiative
Entry added October 30, 2018

Text
Available for: Apple Watch Series 1 and later
Impact: Processing a maliciously crafted text file may lead to a
denial of service
Description: A denial of service issue was addressed with improved
validation.
CVE-2018-4304: jianan.huang (@Sevck)
Entry added October 30, 2018

WebKit
Available for: Apple Watch Series 1 and later
Impact: Unexpected interaction causes an ASSERT failure
Description: A memory corruption issue was addressed with improved
validation.
CVE-2018-4191: found by OSS-Fuzz

WebKit
Available for: Apple Watch Series 1 and later
Impact: Cross-origin SecurityErrors includes the accessed frame's
origin
Description: The issue was addressed by removing origin information.
CVE-2018-4311: Erling Alf Ellingsen (@steike)

WebKit
Available for: Apple Watch Series 1 and later
Impact: Processing maliciously crafted web content may lead to
arbitrary code execution
Description: Multiple memory corruption issues were addressed with
improved memory handling.
CVE-2018-4299: Samuel GroI2 (saelo) working with Trend Micro's Zero
Day Initiative
CVE-2018-4358: @phoenhex team (@bkth_ @5aelo @_niklasb) working with
Trend Micro's Zero Day Initiative
CVE-2018-4359: Samuel GroA (@5aelo)

WebKit
Available for: Apple Watch Series 1 and later
Impact: A malicious website may cause unexepected cross-origin
behavior
Description: A cross-origin issue existed with "iframe" elements.
This was addressed with improved tracking of security origins.
CVE-2018-4319: John Pettitt of Google

WebKit
Available for: Apple Watch Series 1 and later
Impact: Unexpected interaction causes an ASSERT failure
Description: A memory consumption issue was addressed with improved
memory handling.
CVE-2018-4361: found by OSS-Fuzz

Additional recognition

Core Data
We would like to acknowledge Andreas Kurtz (@aykay) of NESO Security
Labs GmbH for their assistance.

Kernel
We would like to acknowledge Brandon Azad for their assistance.

Sandbox Profiles
We would like to acknowledge Tencent Keen Security Lab working with
Trend Micro's Zero Day Initiative for their assistance.

SQLite
We would like to acknowledge Andreas Kurtz (@aykay) of NESO Security
Labs GmbH for their assistance.

WebKit
We would like to acknowledge Tencent Keen Security Lab working with
Trend Micro's Zero Day Initiative for their assistance.

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/
-----BEGIN PGP SIGNATURE-----

iQJdBAEBCABHFiEEDNXJVNCJJEAVmJdZeC9tht7TK3EFAlvYkgUpHHByb2R1Y3Qt
c2VjdXJpdHktbm9yZXBseUBsaXN0cy5hcHBsZS5jb20ACgkQeC9tht7TK3GbihAA
rJrGRlOECVnj/z6kzobQ6SjqeXQanrEJKOEbP12pOEgOcqhJd/CsRIGMGxtG8cRC
H60/qGsVtDXhqmGZQl2cBaMeg+bagLvSaRUC6urXqYLIKoGay7zsbQyWS4hAbyNu
Gpu0k5bvb2tr3IZIfqHfUcScxpsB3zJiYejtgLow2MDbkt84qNqx73xYbOIXDJoc
kfyNhb/RKqiXOi5Yvh+E84GARjUSGUFD5fMbIMu7Lf0cwGpL3XakKG8S+8L0W3/W
vGsl7V8DWeH6qbVoMkLUxWGxWzCd4bUr88J0cybski3L4SvpYbDPMMKxQkyn4Rfq
qSDG3RMS0MUeoGn/iwRcJ8p6gPMGjWTT+lvX0XaZzG3b/mkOw8C2jRs1Ds8vUbRB
Pxn1AQvg0x+EW/HIKqrvbE6i5pLjhurHYChy9tI9AS2iSHsAnrSB8DV8mc4T4v6a
zJqJO5qPPCVJ9K328l+FyXe+X5erQP4/dwol71VjweA/peSJCL34/YL3oSs9e41R
ApabYVIphnq0Ion5gVNancPhgQEbkIjMncFiGRg4wF0jly2Ni+NsnDquTKEM3VvG
mOlo0VVw3XxLhtiQF/RKbQSy+6dK0YGykIsmnz/DsstxS4xRiWbk75XErA/nSwPs
fHAicxI2AmpI+PbdYcPI4D3eJr/1ZDH8NvY1897WX5c=
=fz+z
-----END PGP SIGNATURE-----