Apple Posts Security Content of Watch OS 1.0.1, and It's Sobering

Apple, as it always does, has posted the security details of its Watch OS 1.0.1 update. If you thought this update was minor, thanks to Apple's typical low-key description, take a look at the details. Then update right away.

APPLE-SA-2015-05-19-1 Watch OS 1.0.1

Watch OS 1.0.1 is now available and addresses the following:

Certificate Trust Policy
Available for:  Apple Watch Sport, Apple Watch,
and Apple Watch Edition
Impact:  Update to the certificate trust policy
Description:  The certificate trust policy was updated. The complete list of certificates may be viewed at
https://support.apple.com/kb/204873

FontParser
Available for:  Apple Watch Sport, Apple Watch,
and Apple Watch Edition
Impact:  Processing a maliciously crafted font file may lead to
arbitrary code execution
Description:  A memory corruption issue existed in the processing of font files. This issue was addressed through improved bounds
checking.
CVE-ID
CVE-2015-1093 : Marc Schoenefeld

Foundation
Available for:  Apple Watch Sport, Apple Watch,
and Apple Watch Edition
Impact:  An application using NSXMLParser may be misused to disclose information
Description:  An XML External Entity issue existed in NSXMLParser's handling of XML. This issue was addressed by not loading external entities across origins.
CVE-ID
CVE-2015-1092 : Ikuya Fukumoto

IOHIDFamily
Available for:  Apple Watch Sport, Apple Watch,
and Apple Watch Edition
Impact:  A malicious application may be able to determine kernel
memory layout
Description:  An issue existed in IOHIDFamily that led to the
disclosure of kernel memory content. This issue was addressed through improved bounds checking.
CVE-ID
CVE-2015-1096 : Ilja van Sprundel of IOActive

IOAcceleratorFamily
Available for:  Apple Watch Sport, Apple Watch,
and Apple Watch Edition
Impact:  A malicious application may be able to determine kernel
memory layout
Description:  An issue existed in IOAcceleratorFamily that led to the disclosure of kernel memory content. This issue was addressed by removing unneeded code.
CVE-ID
CVE-2015-1094 : Cererdlong of Alibaba Mobile Security Team

Kernel
Available for:  Apple Watch Sport, Apple Watch,
and Apple Watch Edition
Impact:  A malicious application may be able to cause a system denial of service
Description:  A race condition existed in the kernel's setreuid
system call. This issue was addressed through improved state
management.
CVE-ID
CVE-2015-1099 : Mark Mentovai of Google Inc.

Kernel
Available for:  Apple Watch Sport, Apple Watch,
and Apple Watch Edition
Impact:  An attacker with a privileged network position may be able to redirect user traffic to arbitrary hosts
Description:  ICMP redirects were enabled by default. This issue was addressed by disabling ICMP redirects.
CVE-ID
CVE-2015-1103 : Zimperium Mobile Security Labs

Kernel
Available for:  Apple Watch Sport, Apple Watch,
and Apple Watch Edition
Impact:  A remote attacker may be able to cause a denial of service
Description:  A state inconsistency issue existed in the handling of TCP out of band data. This issue was addressed through improved state management.
CVE-ID
CVE-2015-1105 : Kenton Varda of Sandstorm.io

Kernel
Available for:  Apple Watch Sport, Apple Watch,
and Apple Watch Edition
Impact:  A malicious application may escalate privileges using a
compromised service intended to run with reduced privileges
Description:  setreuid and setregid system calls failed to drop
privileges permanently. This issue was addressed by correctly
dropping privileges.
CVE-ID
CVE-2015-1117 : Mark Mentovai of Google Inc.

Kernel
Available for:  Apple Watch Sport, Apple Watch,
and Apple Watch Edition
Impact:  A remote attacker may be able to bypass network filters
Description:  The system would treat some IPv6 packets from remote network interfaces as local packets. The issue was addressed by rejecting these packets.
CVE-ID
CVE-2015-1104 : Stephen Roettger of the Google Security Team

Kernel
Available for:  Apple Watch Sport, Apple Watch,
and Apple Watch Edition
Impact:  An attacker with a privileged network position may be able to cause a denial of service
Description:  A state inconsistency existed in the processing of TCP headers. This issue was addressed through improved state handling.
CVE-ID
CVE-2015-1102 : Andrey Khudyakov and Maxim Zhuravlev of Kaspersky Lab

Kernel
Available for:  Apple Watch Sport, Apple Watch,
and Apple Watch Edition
Impact:  A malicious application may be able to cause unexpected
system termination or read kernel memory
Description:  An out of bounds memory access issue existed in the kernel. This issue was addressed through improved memory handling.
CVE-ID
CVE-2015-1100 : Maxime Villard of m00nbsd

Kernel
Available for:  Apple Watch Sport, Apple Watch,
and Apple Watch Edition
Impact:  A malicious application may be able to execute arbitrary code with system privileges
Description:  A memory corruption issue existed in the kernel. This issue was addressed through improved memory handling.
CVE-ID
CVE-2015-1101 : [email protected] working with HP's Zero Day Initiative

Secure Transport
Available for:  Apple Watch Sport, Apple Watch,
and Apple Watch Edition
Impact:  An attacker with a privileged network position may intercept SSL/TLS connections
Description:  Secure Transport accepted short ephemeral RSA keys, usually used only in export-strength RSA cipher suites, on
connections using full-strength RSA cipher suites. This issue, also known as FREAK, only affected connections to servers which support export-strength RSA cipher suites, and was addressed by removing support for ephemeral RSA keys.
CVE-ID
CVE-2015-1067 : Benjamin Beurdouche, Karthikeyan Bhargavan, Antoine Delignat-Lavaud, Alfredo Pironti, and Jean Karim Zinzindohoue of Prosecco at Inria Paris

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