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Published January 7, 2019

The Pixel Update Bulletin contains details of security vulnerabilities and functional improvements affecting supported Google Pixel devices (Google devices). For Google devices, security patch levels of 2019-01-05 or later address all issues in this bulletin and all issues in the January 2019 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 2019-01-05 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 January 2019 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-2018-13098 A-113148387

Upstream kernel ID Moderate Filesystem CVE-2018-13099 A-113148515

Upstream kernel ID Moderate Filesystem

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 and mobile data), improvements, and affected devices.

References Category Improvements Devices A-113776612, A-118022272 Audio Improved audio quality when recording videos Pixel 3, Pixel 3 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 2019-01-05 or later address all issues associated with the 2019-01-05 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 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 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.

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