Home / mailings APPLE-SA-2020-11-05-5 watchOS 5.3.9
Posted on 06 November 2020
Apple Security-announceAPPLE-SA-2020-11-05-5 watchOS 5.3.9
watchOS 5.3.9 is now available and address the following issues.
Information about the security content is also available at
https://support.apple.com/HT211945.
FontParser
Available for: Apple Watch Series 1, Apple Watch Series 2, Apple
Watch Series 3, and Apple Watch Series 4 when paired to an iPhone
with iOS 12 installed
Impact: Processing a maliciously crafted font may lead to arbitrary
code execution. Apple is aware of reports that an exploit for this
issue exists in the wild.
Description: A memory corruption issue was addressed with improved
input validation.
CVE-2020-27930: Google Project Zero
Kernel
Available for: Apple Watch Series 1, Apple Watch Series 2, Apple
Watch Series 3, and Apple Watch Series 4 when paired to an iPhone
with iOS 12 installed
Impact: A malicious application may be able to disclose kernel
memory. Apple is aware of reports that an exploit for this issue
exists in the wild.
Description: A memory initialization issue was addressed.
CVE-2020-27950: Google Project Zero
Kernel
Available for: Apple Watch Series 1, Apple Watch Series 2, Apple
Watch Series 3, and Apple Watch Series 4 when paired to an iPhone
with iOS 12 installed
Impact: A malicious application may be able to execute arbitrary code
with kernel privileges. Apple is aware of reports that an exploit for
this issue exists in the wild.
Description: A type confusion issue was addressed with improved state
handling.
CVE-2020-27932: 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".
This message is signed with Apple's Product Security PGP key,
and details are available at:
https://www.apple.com/support/security/pgp/
