Android Security Bulletin

Published February 06, 2017 | Updated February 8, 2017

The Android Security Bulletin contains details of security vulnerabilities affecting Android devices. Alongside the bulletin, we have released a security update to Google devices through an over-the-air (OTA) update. The Google device firmware images have also been released to the Google Developer site. Security patch levels of February 05, 2017 or later address all of these issues. Refer to the Pixel and Nexus update schedule to learn how to check a device's security patch level.

Partners were notified of the issues described in the bulletin on January 03, 2017 or earlier. Source code patches for these issues have been released to the Android Open Source Project (AOSP) repository and linked from this bulletin. This bulletin also includes links to patches outside of AOSP.

The most severe of these issues is a Critical security vulnerability that could enable remote code execution on an affected device through multiple methods such as email, web browsing, and MMS when processing media files. The severity assessment is based on the effect that exploiting the vulnerability would possibly have on an affected device, assuming the platform and service mitigations are disabled for development purposes or if successfully bypassed.

We have had no reports of active customer exploitation or abuse of these newly reported issues. Refer to the Android and Google service mitigations section for details on the Android security platform protections and service protections such as SafetyNet, which improve the security of the Android platform.

We encourage all customers to accept these updates to their devices.

Announcements

This bulletin has two security patch level strings to provide Android partners with the flexibility to more quickly fix a subset of vulnerabilities that are similar across all Android devices. See Common questions and answers for additional information:
- 2017-02-01: Partial security patch level string. This security patch level string indicates that all issues associated with 2017-02-01 (and all previous security patch level strings) are addressed.
- 2017-02-05: Complete security patch level string. This security patch level string indicates that all issues associated with 2017-02-01 and 2017-02-05 (and all previous security patch level strings) are addressed.
Supported Google devices will receive a single OTA update with the February 05, 2017 security patch level.

Android and Google service mitigations

This is a summary of the mitigations provided by the Android security platform and service protections, such as SafetyNet. These capabilities reduce the likelihood that security vulnerabilities could be successfully exploited on Android.

Exploitation for many issues on Android is made more difficult by enhancements in newer versions of the Android platform. We encourage all users to update to the latest version of Android where possible.
The Android Security team actively monitors for abuse with Verify Apps and SafetyNet, which are designed to warn users about Potentially Harmful Applications. Verify Apps is enabled by default on devices with Google Mobile Services and is especially important for users who install applications from outside of Google Play. Device rooting tools are prohibited within Google Play, but Verify Apps warns users when they attempt to install a detected rooting application—no matter where it comes from. Additionally, Verify Apps attempts to identify and block installation of known malicious applications that exploit a privilege escalation vulnerability. If such an application has already been installed, Verify Apps will notify the user and attempt to remove the detected application.
As appropriate, Google Hangouts and Messenger applications do not automatically pass media to processes such as Mediaserver.

Acknowledgements

We would like to thank these researchers for their contributions:

Daniel Dakhno: CVE-2017-0420
Daniel Micay of Copperhead Security: CVE-2017-0410
Dzmitry Lukyanenka: CVE-2017-0414
Frank Liberato of Chrome: CVE-2017-0409
Gal Beniamini of Project Zero: CVE-2017-0411, CVE-2017-0412
Gengjia Chen (@chengjia4574) and pjf of IceSword Lab, Qihoo 360 Technology Co. Ltd.: CVE-2017-0434, CVE-2017-0446, CVE-2017-0447, CVE-2017-0432
Guang Gong (龚广) (@oldfresher) of Alpha Team, Qihoo 360 Technology Co.Ltd: CVE-2017-0415
Hanxiang Wen, Wenke Dou, Mingjian Zhou ( @Mingjian_Zhou), and Xuxian Jiang of C0RE Team: CVE-2017-0418
Hao Chen and Guang Gong of Alpha Team, Qihoo 360 Technology Co. Ltd.: CVE-2017-0437, CVE-2017-0438, CVE-2017-0439, CVE-2016-8419, CVE-2016-8420, CVE-2016-8421, CVE-2017-0441, CVE-2017-0442, CVE-2016-8476, CVE-2017-0443
Jeff Sharkey of Google: CVE-2017-0421, CVE-2017-0423
Jeff Trim: CVE-2017-0422
Jianqiang Zhao ( @jianqiangzhao) and pjf of IceSword Lab, Qihoo 360: CVE-2017-0445
ma.la and Nikolay Elenkov of LINE Corporation: CVE-2016-5552
Max Spector of Google: CVE-2017-0416
Mingjian Zhou ( @Mingjian_Zhou), Yuqi Lu ( @nikos233), and Xuxian Jiang of C0RE Team: CVE-2017-0425
Qidan He (何淇丹) (@flanker_hqd) and Di Shen (申迪) (@returnsme) of KeenLab, Tencent (腾讯科恩实验室): CVE-2017-0427
Sagi Kedmi of IBM X-Force Research: CVE-2017-0433
Scott Bauer (@ScottyBauer1) and Daniel Micay of Copperhead Security: CVE-2017-0405
Seven Shen (@lingtongshen) of Trend Micro Mobile Threat Research Team: CVE-2017-0449, CVE-2016-8418
Tong Lin, Yuan-Tsung Lo, Chiachih Wu ( @chiachih_wu), and Xuxian Jiang of C0RE Team: CVE-2017-0436, CVE-2016-8481, CVE-2017-0435
V.E.O (@VYSEa) of Mobile Threat Response Team, Trend Micro: CVE-2017-0424
Weichao Sun (@sunblate) of Alibaba Inc.: CVE-2017-0407
Wenke Dou, Hongli Han, Mingjian Zhou ( @Mingjian_Zhou), and Xuxian Jiang of C0RE Team: CVE-2017-0450
Wenke Dou, Yuqi Lu ( @nikos233), Mingjian Zhou ( @Mingjian_Zhou), and Xuxian Jiang of C0RE Team: CVE-2017-0417
Wish Wu (@wish_wu) ( 吴潍浠此彼) of Ant-financial Light-Year Security Lab: CVE-2017-0408
Yao Jun, Yuan-Tsung Lo, Chiachih Wu ( @chiachih_wu), and Xuxian Jiang of C0RE Team: CVE-2016-8480
Yuan-Tsung Lo, Chiachih Wu ( @chiachih_wu), and Xuxian Jiang of C0RE Team: CVE-2017-0444
Yuan-Tsung Lo, Tong Lin, Chiachih Wu ( @chiachih_wu), and Xuxian Jiang of C0RE Team: CVE-2017-0428
Yuan-Tsung Lo, Xiaodong Wang, Chiachih Wu ( @chiachih_wu), and Xuxian Jiang of C0RE Team: CVE-2017-0448, CVE-2017-0429
Zhen Zhou ( @henices) and Zhixin Li of NSFocus: CVE-2017-0406

We would also like to thank the following for their contributions to this bulletin:

Pengfei Ding (丁鹏飞), Chenfu Bao (包沉浮), and Lenx Wei (韦韬) of Baidu X-Lab (百度安全实验室)

2017-02-01 security patch level—Vulnerability details

In the sections below, we provide details for each of the security vulnerabilities that apply to the 2017-02-01 patch level. There is a description of the issue, a severity rationale, and a table with the CVE, associated references, severity, updated Google devices, updated AOSP versions (where applicable), and date reported. When available, we will link the public change that addressed the issue to the bug ID, like the AOSP change list. When multiple changes relate to a single bug, additional references are linked to numbers following the bug ID.

Remote code execution vulnerability in Surfaceflinger

A remote code execution vulnerability in Surfaceflinger could enable an attacker using a specially crafted file to cause memory corruption during media file and data processing. This issue is rated as Critical due to the possibility of remote code execution within the context of the Surfaceflinger process.

CVE	References	Severity	Updated Google devices	Updated AOSP versions	Date reported
CVE-2017-0405	A-31960359	Critical	All	7.0, 7.1.1	Oct 4, 2016

Remote code execution vulnerability in Mediaserver

A remote code execution vulnerability in Mediaserver could enable an attacker using a specially crafted file to cause memory corruption during media file and data processing. This issue is rated as Critical due to the possibility of remote code execution within the context of the Mediaserver process.

CVE	References	Severity	Updated Google devices	Updated AOSP versions	Date reported
CVE-2017-0406	A-32915871 [2]	Critical	All	6.0, 6.0.1, 7.0, 7.1.1	Nov 14, 2016
CVE-2017-0407	A-32873375	Critical	All	6.0, 6.0.1, 7.0, 7.1.1	Nov 12, 2016

Remote code execution vulnerability in libgdx

A remote code execution vulnerability in libgdx could enable an attacker using a specially crafted file to execute arbitrary code in the context of an unprivileged process. This issue is rated as High due to the possibility of remote code execution in an application that uses this library.

CVE	References	Severity	Updated Google devices	Updated AOSP versions	Date reported
CVE-2017-0408	A-32769670	High	All	7.1.1	Nov 9, 2016

Remote code execution vulnerability in libstagefright

A remote code execution vulnerability in libstagefright could enable an attacker using a specially crafted file to execute arbitrary code in the context of an unprivileged process. This issue is rated as High due to the possibility of remote code execution in an application that uses this library.

CVE	References	Severity	Updated Google devices	Updated AOSP versions	Date reported
CVE-2017-0409	A-31999646	High	All	6.0, 6.0.1, 7.0, 7.1.1	Google internal

Elevation of privilege vulnerability in Java.Net

An elevation of privilege in the Java.Net library could enable malicious web content to redirect a user to another website without explicit permission. This issue is rated as High because it is a remote bypass of user interaction requirements.

CVE	References	Severity	Updated Google devices	Updated AOSP versions	Date reported
CVE-2016-5552	A-31858037	High	All	7.0, 7.1.1	Sep 30, 2016

Elevation of privilege vulnerability in Framework APIs

An elevation of privilege vulnerability in the Framework APIs could enable a local malicious application to execute arbitrary code within the context of a privileged process. This issue is rated as High because it could be used to gain local access to elevated capabilities, which are not normally accessible to a third-party application.

CVE	References	Severity	Updated Google devices	Updated AOSP versions	Date reported
CVE-2017-0410	A-31929765	High	All	5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1	Oct 2, 2016
CVE-2017-0411	A-33042690 [2]	High	All	7.0, 7.1.1	Nov 21, 2016
CVE-2017-0412	A-33039926 [2]	High	All	7.0, 7.1.1	Nov 21, 2016

Elevation of privilege vulnerability in Mediaserver

An elevation of privilege vulnerability in Mediaserver could enable a local malicious application to execute arbitrary code within the context of a privileged process. This issue is rated as High because it could be used to gain local access to elevated capabilities, which are not normally accessible to a third-party application.

CVE	References	Severity	Updated Google devices	Updated AOSP versions	Date reported
CVE-2017-0415	A-32706020	High	All	6.0, 6.0.1, 7.0, 7.1.1	Nov 4, 2016

Elevation of privilege vulnerability in Audioserver

An elevation of privilege vulnerability in Audioserver could enable a local malicious application to execute arbitrary code within the context of a privileged process. This issue is rated as High because it could be used to gain local access to elevated capabilities, which are not normally accessible to a third-party application.

CVE	References	Severity	Updated Google devices	Updated AOSP versions	Date reported
CVE-2017-0416	A-32886609 [2]	High	All	4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1	Google internal
CVE-2017-0417	A-32705438	High	All	4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1	Nov 7, 2016
CVE-2017-0418	A-32703959 [2]	High	All	4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1	Nov 7, 2016
CVE-2017-0419	A-32220769	High	All	4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1	Oct 15, 2016

Information disclosure vulnerability in AOSP Mail

An information disclosure vulnerability in AOSP Mail could enable a local malicious application to bypass operating system protections that isolate application data from other applications. This issue is rated as High because it could be used to gain access to data that the application does not have access to.

CVE	References	Severity	Updated Google devices	Updated AOSP versions	Date reported
CVE-2017-0420	A-32615212	High	All	4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1	Sep 12, 2016

Information disclosure vulnerability in AOSP Messaging

An information disclosure vulnerability in AOSP Messaging could enable a local malicious application to bypass operating system protections that isolate application data from other applications. This issue is rated as High because it could be used to gain access to data that the application does not have access to.

CVE	References	Severity	Updated Google devices	Updated AOSP versions	Date reported
CVE-2017-0413	A-32161610	High	All	6.0, 6.0.1, 7.0, 7.1.1	Oct 13, 2016
CVE-2017-0414	A-32807795	High	All	6.0, 6.0.1, 7.0, 7.1.1	Nov 10, 2016

Information disclosure vulnerability in Framework APIs

An information disclosure vulnerability in the Framework APIs could enable a local malicious application to bypass operating system protections that isolate application data from other applications. This issue is rated as High because it could be used to gain access to data that the application does not have access to.

CVE	References	Severity	Updated Google devices	Updated AOSP versions	Date reported
CVE-2017-0421	A-32555637	High	All	5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1	Google internal

Denial of service vulnerability in Bionic DNS

A denial of service vulnerability in Bionic DNS could enable a remote attacker to use a specially crafted network packet to cause a device hang or reboot. This issue is rated as High due to the possibility of remote denial of service.

CVE	References	Severity	Updated Google devices	Updated AOSP versions	Date reported
CVE-2017-0422	A-32322088	High	All	4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1	Oct 20, 2016

Elevation of privilege vulnerability in Bluetooth

An elevation of privilege vulnerability in Bluetooth could enable a proximate attacker to manage access to documents on the device. This issue is rated as Moderate because it first requires exploitation of a separate vulnerability in the Bluetooth stack.

CVE	References	Severity	Updated Google devices	Updated AOSP versions	Date reported
CVE-2017-0423	A-32612586	Moderate	All	5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1	Nov 2, 2016

Information disclosure vulnerability in AOSP Messaging

An information disclosure vulnerability in AOSP Messaging could enable a remote attacker using a special crafted file to access data outside of its permission levels. This issue is rated as Moderate because it is a general bypass for a user level defense in depth or exploit mitigation technology in a privileged process.

CVE	References	Severity	Updated Google devices	Updated AOSP versions	Date reported
CVE-2017-0424	A-32322450	Moderate	All	6.0, 6.0.1, 7.0, 7.1.1	Oct 20, 2016

Information disclosure vulnerability in Audioserver

An information disclosure vulnerability in Audioserver could enable a local malicious application to access data outside of its permission levels. This issue is rated as Moderate because it could be used to access sensitive data without permission.

CVE	References	Severity	Updated Google devices	Updated AOSP versions	Date reported
CVE-2017-0425	A-32720785	Moderate	All	4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1	Nov 7, 2016

Information disclosure vulnerability in Filesystem

An information disclosure vulnerability in the Filesystem could enable a local malicious application to access data outside of its permission levels. This issue is rated as Moderate because it could be used to access sensitive data without permission.

CVE	References	Severity	Updated Google devices	Updated AOSP versions	Date reported
CVE-2017-0426	A-32799236 [2]	Moderate	All	7.0, 7.1.1	Google internal

2017-02-05 security patch level—Vulnerability details

In the sections below, we provide details for each of the security vulnerabilities that apply to the 2017-02-05 patch level. There is a description of the issue, a severity rationale, and a table with the CVE, associated references, severity, updated Google devices, updated AOSP versions (where applicable), and date reported. When available, we will link the public change that addressed the issue to the bug ID, like the AOSP change list. When multiple changes relate to a single bug, additional references are linked to numbers following the bug ID.

Remote code execution vulnerability in Qualcomm crypto driver

A remote code execution vulnerability in the Qualcomm crypto driver could enable a remote attacker to execute arbitrary code within the context of the kernel. This issue is rated as Critical due to the possibility of remote code execution in the context of the kernel.

CVE	References	Severity	Updated Google devices	Date reported
CVE-2016-8418	A-32652894 QC-CR#1077457	Critical	None*	Oct 10, 2016

* Supported Google devices on Android 7.0 or later that have installed all available updates are not affected by this vulnerability.

Elevation of privilege vulnerability in kernel file system

An elevation of privilege vulnerability in the kernel file system could enable a local malicious application to execute arbitrary code within the context of the kernel. This issue is rated as Critical due to the possibility of a local permanent device compromise, which may require reflashing the operating system to repair the device.

CVE	References	Severity	Updated Google devices	Date reported
CVE-2017-0427	A-31495866*	Critical	Nexus 5X, Nexus 6, Nexus 6P, Nexus 9, Android One, Pixel C, Nexus Player, Pixel, Pixel XL	Sep 13, 2016

* The patch for this issue is not publicly available. The update is contained in the latest binary drivers for Nexus devices available from the Google Developer site.

Elevation of privilege vulnerability in NVIDIA GPU driver

An elevation of privilege vulnerability in the NVIDIA GPU driver could enable a local malicious application to execute arbitrary code within the context of the kernel. This issue is rated as Critical due to the possibility of a local permanent device compromise, which may require reflashing the operating system to repair the device.

CVE	References	Severity	Updated Google devices	Date reported
CVE-2017-0428	A-32401526* N-CVE-2017-0428	Critical	Nexus 9	Oct 25, 2016
CVE-2017-0429	A-32636619* N-CVE-2017-0429	Critical	Nexus 9	Nov 3, 2016

* The patch for this issue is not publicly available. The update is contained in the latest binary drivers for Nexus devices available from the Google Developer site.

Elevation of privilege vulnerability in kernel networking subsystem

An elevation of privilege vulnerability in the kernel networking subsystem could enable a local malicious application to execute arbitrary code within the context of the kernel. This issue is rated as Critical due to the possibility of a local permanent device compromise, which may require reflashing the operating system to repair the device.

CVE	References	Severity	Updated Google devices	Date reported
CVE-2014-9914	A-32882659 Upstream kernel	Critical	Nexus 6, Nexus Player	Nov 9, 2016

Elevation of privilege vulnerability in Broadcom Wi-Fi driver

An elevation of privilege vulnerability in the Broadcom Wi-Fi driver could enable a local malicious application to execute arbitrary code within the context of the kernel. This issue is rated as Critical due to the possibility of a local permanent device compromise, which may require reflashing the operating system to repair the device.

CVE	References	Severity	Updated Google devices	Date reported
CVE-2017-0430	A-32838767* B-RB#107459	Critical	Nexus 6, Nexus 6P, Nexus 9, Pixel C, Nexus Player	Google internal

* The patch for this issue is not publicly available. The update is contained in the latest binary drivers for Nexus devices available from the Google Developer site.

Vulnerabilities in Qualcomm components

The following vulnerability affects Qualcomm components and is described in further detail in Qualcomm AMSS September 2016 security bulletin.

CVE	References	Severity*	Updated Google devices	Date reported
CVE-2017-0431	A-32573899**	Critical	None***	Qualcomm internal

* The severity rating for these vulnerabilities was determined by the vendor.

** The patch for this issue is not publicly available. The update is contained in the latest binary drivers for Nexus devices available from the Google Developer site.

*** Supported Google devices on Android 7.0 or later that have installed all available updates are not affected by this vulnerability.

Elevation of privilege vulnerability in MediaTek driver

An elevation of privilege vulnerability in the MediaTek driver could enable a local malicious application to execute arbitrary code within the context of the kernel. This issue is rated as High because it first requires compromising a privileged process.

CVE	References	Severity	Updated Google devices	Date reported
CVE-2017-0432	A-28332719* M-ALPS02708925	High	None**	Apr 21, 2016

* The patch for this issue is not publicly available. The update is contained in the latest binary drivers for Nexus devices available from the Google Developer site.

** Supported Google devices on Android 7.0 or later that have installed all available updates are not affected by this vulnerability.

Elevation of privilege vulnerability in Synaptics touchscreen driver

An elevation of privilege vulnerability in the Synaptics touchscreen driver could enable a local malicious application to execute arbitrary code within the context of the touchscreen chipset. This issue is rated as High because it first requires compromising a privileged process.

CVE	References	Severity	Updated Google devices	Date reported
CVE-2017-0433	A-31913571*	High	Nexus 6P, Nexus 9, Android One, Pixel, Pixel XL	Sep 8, 2016
CVE-2017-0434	A-33001936*	High	Pixel, Pixel XL	Nov 18, 2016

* The patch for this issue is not publicly available. The update is contained in the latest binary drivers for Nexus devices available from the Google Developer site.

Elevation of privilege vulnerability in Qualcomm Secure Execution Environment Communicator driver

An elevation of privilege vulnerability in the Qualcomm Secure Execution Environment Communicator drive could enable a local malicious application to execute arbitrary code within the context of the kernel. This issue is rated as High because it first requires compromising a privileged process.

CVE	References	Severity	Updated Google devices	Date reported
CVE-2016-8480	A-31804432 QC-CR#1086186 [2]	High	Nexus 5X, Nexus 6, Nexus 6P, Android One, Pixel, Pixel XL	Sep 28, 2016

Elevation of privilege vulnerability in Qualcomm sound driver

An elevation of privilege vulnerability in the Qualcomm sound driver could enable a local malicious application to execute arbitrary code within the context of the kernel. This issue is rated as High because it first requires compromising a privileged process.

CVE	References	Severity	Updated Google devices	Date reported
CVE-2016-8481	A-31906415* QC-CR#1078000	High	Nexus 5X, Nexus 6P, Pixel, Pixel XL	Oct 1, 2016
CVE-2017-0435	A-31906657* QC-CR#1078000	High	Nexus 5X, Nexus 6P, Pixel, Pixel XL	Oct 1, 2016
CVE-2017-0436	A-32624661* QC-CR#1078000	High	Nexus 5X, Nexus 6P, Pixel, Pixel XL	Nov 2, 2016

* The patch for this issue is not publicly available. The update is contained in the latest binary drivers for Nexus devices available from the Google Developer site.

Elevation of privilege vulnerability in Qualcomm Wi-Fi driver

An elevation of privilege vulnerability in the Qualcomm Wi-Fi driver could enable a local malicious application to execute arbitrary code within the context of the kernel. This issue is rated as High because it first requires compromising a privileged process.

CVE	References	Severity	Updated Google devices	Date reported
CVE-2017-0437	A-32402310 QC-CR#1092497	High	Nexus 5X, Pixel, Pixel XL	Oct 25, 2016
CVE-2017-0438	A-32402604 QC-CR#1092497	High	Nexus 5X, Pixel, Pixel XL	Oct 25, 2016
CVE-2017-0439	A-32450647 QC-CR#1092059	High	Nexus 5X, Pixel, Pixel XL	Oct 25, 2016
CVE-2016-8419	A-32454494 QC-CR#1087209	High	Nexus 5X, Pixel, Pixel XL	Oct 26, 2016
CVE-2016-8420	A-32451171 QC-CR#1087807	High	Nexus 5X, Pixel, Pixel XL	Oct 26, 2016
CVE-2016-8421	A-32451104 QC-CR#1087797	High	Nexus 5X, Pixel, Pixel XL	Oct 26, 2016
CVE-2017-0440	A-33252788 QC-CR#1095770	High	Nexus 5X, Pixel, Pixel XL	Nov 11, 2016
CVE-2017-0441	A-32872662 QC-CR#1095009	High	Nexus 5X, Pixel, Pixel XL	Nov 11, 2016
CVE-2017-0442	A-32871330 QC-CR#1092497	High	Nexus 5X, Pixel, Pixel XL	Nov 13, 2016
CVE-2017-0443	A-32877494 QC-CR#1092497	High	Nexus 5X, Pixel, Pixel XL	Nov 13, 2016
CVE-2016-8476	A-32879283 QC-CR#1091940	High	Nexus 5X, Pixel, Pixel XL	Nov 14, 2016

Elevation of privilege vulnerability in Realtek sound driver

An elevation of privilege vulnerability in the Realtek sound driver could enable a local malicious application to execute arbitrary code within the context of the kernel. This issue is rated as High because it first requires compromising a privileged process.

CVE	References	Severity	Updated Google devices	Date reported
CVE-2017-0444	A-32705232*	High	Nexus 9	Nov 7, 2016

* The patch for this issue is not publicly available. The update is contained in the latest binary drivers for Nexus devices available from the Google Developer site.

Elevation of privilege vulnerability in HTC touchscreen driver

An elevation of privilege vulnerability in the HTC touchscreen driver could enable a local malicious application to execute arbitrary code within the context of the kernel. This issue is rated as High because it first requires compromising a privileged process.

CVE	References	Severity	Updated Google devices	Date reported
CVE-2017-0445	A-32769717*	High	Pixel, Pixel XL	Nov 9, 2016
CVE-2017-0446	A-32917445*	High	Pixel, Pixel XL	Nov 15, 2016
CVE-2017-0447	A-32919560*	High	Pixel, Pixel XL	Nov 15, 2016

* The patch for this issue is not publicly available. The update is contained in the latest binary drivers for Nexus devices available from the Google Developer site.

Information disclosure vulnerability in NVIDIA video driver

An information disclosure vulnerability in the NVIDIA video driver could enable a local malicious application to access data outside of its permission levels. This issue is rated as High because it could be used to access sensitive data without explicit user permission.

CVE	References	Severity	Updated Google devices	Date reported
CVE-2017-0448	A-32721029* N-CVE-2017-0448	High	Nexus 9	Nov 7, 2016

* The patch for this issue is not publicly available. The update is contained in the latest binary drivers for Nexus devices available from the Google Developer site.

Elevation of privilege vulnerability in Broadcom Wi-Fi driver

An elevation of privilege vulnerability in the Broadcom Wi-Fi driver could enable a local malicious application to execute arbitrary code within the context of the kernel. This issue is rated as Moderate because it first requires compromising a privileged process and is mitigated by current platform configurations.

CVE	References	Severity	Updated Google devices	Date reported
CVE-2017-0449	A-31707909* B-RB#32094	Moderate	Nexus 6, Nexus 6P	Sep 23, 2016

* The patch for this issue is not publicly available. The update is contained in the latest binary drivers for Nexus devices available from the Google Developer site.

Elevation of privilege vulnerability in Audioserver

An elevation of privilege vulnerability in Audioserver could enable a local malicious application to execute arbitrary code within the context of a privileged process. This issue is rated as Moderate because it is mitigated by current platform configurations.

CVE	References	Severity	Updated Google devices	Date reported
CVE-2017-0450	A-32917432*	Moderate	Nexus 9	Nov 15, 2016

* The patch for this issue is not publicly available. The update is contained in the latest binary drivers for Nexus devices available from the Google Developer site.

Elevation of privilege vulnerability in kernel file system

An elevation of privilege vulnerability in the kernel file system could enable a local malicious application to bypass protections that prevent an escalation of privileges. This issue is rated as Moderate because it is a general bypass for a user level defense in depth or exploit mitigation technology.

CVE	References	Severity	Updated Google devices	Date reported
CVE-2016-10044	A-31711619*	Moderate	Nexus 5X, Nexus 6, Nexus 6P, Nexus 9, Android One, Pixel C, Nexus Player, Pixel, Pixel XL	Google internal

* The patch for this issue is not publicly available. The update is contained in the latest binary drivers for Nexus devices available from the Google Developer site.

Information disclosure vulnerability in Qualcomm Secure Execution Environment Communicator

An information disclosure vulnerability in the Qualcomm Secure Execution Environment Communicator could enable a local malicious application to access data outside of its permission levels. This issue is rated as Moderate because it first requires compromising a privileged process.

CVE	References	Severity	Updated Google devices	Date reported
CVE-2016-8414	A-31704078 QC-CR#1076407	Moderate	Nexus 5X, Nexus 6P, Android One, Pixel, Pixel XL	Sep 23, 2016

Information disclosure vulnerability in Qualcomm sound driver

An information disclosure vulnerability in the Qualcomm sound driver could enable a local malicious application to access data outside of its permission levels. This issue is rated as Moderate because it first requires compromising a privileged process.

CVE	References	Severity	Updated Google devices	Date reported
CVE-2017-0451	A-31796345 QC-CR#1073129 [2]	Moderate	Nexus 5X, Nexus 6P, Android One, Pixel, Pixel XL	Sep 27, 2016

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?

To learn how to check a device's security patch level, read the instructions on the Pixel and Nexus update schedule.

Security patch levels of 2017-02-01 or later address all issues associated with the 2017-02-01 security patch level.
Security patch levels of 2017-02-05 or later address all issues associated with the 2017-02-05 security patch level and all previous patch levels.

Device manufacturers that include these updates should set the patch string level to:

[ro.build.version.security_patch]:[2017-02-01]
[ro.build.version.security_patch]:[2017-02-05]

2. Why does this bulletin have two security patch levels?

This bulletin has two security patch levels so that Android partners have the flexibility to fix a subset of vulnerabilities that are similar across all Android devices more quickly. Android partners are encouraged to fix all issues in this bulletin and use the latest security patch level.

Devices that use the February 1, 2017 security patch level must include all issues associated with that security patch level, as well as fixes for all issues reported in previous security bulletins.
Devices that use the security patch level of February 5, 2017 or newer must include all applicable patches in this (and previous) security bulletins.

Partners are encouraged to bundle the fixes for all issues they are addressing in a single update.

3. How do I determine which Google devices are affected by each issue?

In the 2017-02-01 and 2017-02-05 security vulnerability details sections, each table has an Updated Google devices column that covers the range of affected Google devices updated for each issue. This column has a few options:

All Google devices: If an issue affects All and Pixel devices, the table will have "All" in the Updated Google devices column. "All" encapsulates the following supported devices: Nexus 5X, Nexus 6, Nexus 6P, Nexus 9, Android One, Nexus Player, Pixel C, Pixel, and Pixel XL.
Some Google devices: If an issue doesn't affect all Google devices, the affected Google devices are listed in the Updated Google devices column.
No Google devices: If no Google devices running Android 7.0 are affected by the issue, the table will have "None" in the Updated Google devices column.

4. What do the entries in the references column map to?

Entries under the References column of the vulnerability details table may contain a prefix identifying the organization to which the reference value belongs. These prefixes map as follows:

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

Revisions

February 06, 2017: Bulletin published.
February 08, 2017: Bulletin revised to include AOSP links.