Pixel / Nexus Security Bulletin—September 2018

The Pixel / Nexus Security Bulletin contains details of security vulnerabilities and functional improvements affecting supported Google Pixel and Nexus devices (Google devices). For Google devices, security patch levels of 2018-09-05 or later address all issues in this bulletin and all issues in the September 2018 Android Security Bulletin. To learn how to check a device’s security patch level, see Check & update your Android version.

All supported Google devices will receive an update to the 2018-09-05 patch level. We encourage all customers to accept these updates to their devices.

Note: The Google device firmware images are available on the Google Developer site.

Announcements

In addition to the security vulnerabilities described in the September 2018 Android Security Bulletin, Google devices also contain patches for the security vulnerabilities described below.

Security patches

Vulnerabilities are grouped under the component they affect. There is a description of the issue and a table with the CVE, associated references, type of vulnerability, severity, and updated Android Open Source Project (AOSP) versions (where applicable). When available, we link the public change that addressed the issue to the bug ID, such as the AOSP change list. When multiple changes relate to a single bug, additional references are linked to numbers following the bug ID.

Kernel components

CVE	References	Type	Severity	Component
CVE-2018-9517	A-38159931 Upstream kernel	EoP	Moderate	L2TP
CVE-2018-9519	A-69808833*	EoP	Moderate	Easel
CVE-2018-9516	A-71361580 Upstream kernel	EoP	Moderate	HID debug driver
CVE-2018-9518	A-73083945 Upstream kernel	EoP	Moderate	NFC

Qualcomm components

CVE	References	Type	Severity	Component
CVE-2018-11265	A-109741922 QC-CR#2212592	N/A	Moderate	MProc
CVE-2018-11273	A-109741750 QC-CR#2204285 [2]	N/A	Moderate	Audio
CVE-2018-11276	A-109741853 QC-CR#2204959	N/A	Moderate	Kernel
CVE-2018-11281	A-109741734 QC-CR#2191541 [2]	N/A	Moderate	Data HLOS - LNX
CVE-2018-11293	A-109741621 QC-CR#2170668	N/A	Moderate	WLAN Host
CVE-2018-11295	A-109741911 QC-CR#2201190	N/A	Moderate	WLAN Host
CVE-2018-11296	A-109741886 QC-CR#2204463	N/A	Moderate	WLAN Host
CVE-2018-11297	A-109741872 QC-CR#2175439	N/A	Moderate	WLAN Host
CVE-2018-11298	A-109741777 QC-CR#2180699	N/A	Moderate	WLAN Host
CVE-2018-11300	A-109741735 QC-CR#2191365	N/A	Moderate	WLAN Host
CVE-2018-11301	A-109741830 QC-CR#2205372	N/A	Moderate	WLAN Host

Functional patches

These updates are included for affected Pixel devices to address functionality issues not related to the security of Pixel devices. The table includes associated references; the affected category, such as Bluetooth or mobile data; improvements; and affected devices.

References	Category	Improvements	Devices
A-110489408	Battery	Improve battery charge in Retail Mode	Pixel 2, Pixel 2 XL
A-111455307	System	Improve SW Version reporting	Pixel, Pixel XL, Pixel 2, Pixel 2 XL
A-101592600	Bluetooth	Improve audio quality over car speakers	Pixel, Pixel XL, Pixel 2, Pixel 2 XL

Common questions and answers

This section answers common questions that may occur after reading this bulletin.

1. How do I determine if my device is updated to address these issues?

Security patch levels of 2018-09-05 or later address all issues associated with the 2018-09-05 security patch level and all previous patch levels. To learn how to check a device’s security patch level, read the instructions on the Pixel and Nexus update schedule.

2. What do the entries in the Type column mean?

Entries in the Type column of the vulnerability details table reference the classification of the security vulnerability.

Abbreviation	Definition
RCE	Remote code execution
EoP	Elevation of privilege
ID	Information disclosure
DoS	Denial of service
N/A	Classification not available

3. What do the entries in the References column mean?

Entries under the References column of the vulnerability details table may contain a prefix identifying the organization to which the reference value belongs.

Prefix	Reference
A-	Android bug ID
QC-	Qualcomm reference number
M-	MediaTek reference number
N-	NVIDIA reference number
B-	Broadcom reference number

4. What does a * next to the Android bug ID in the References column mean?

Issues that are not publicly available have a * next to the Android bug ID in the References column. The update for that issue is generally contained in the latest binary drivers for Pixel / Nexus devices available from the Google Developer site.

5. Why are security vulnerabilities split between this bulletin and the Android Security Bulletins?

Security vulnerabilities that are documented in the Android Security Bulletins are required to declare the latest security patch level on Android devices. Additional security vulnerabilities, such as those documented in this bulletin are not required for declaring a security patch level.

Versions

Version	Date	Notes
1.0	September 4, 2018	Bulletin published.