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Published December 4, 2017 | Updated December 6, 2017

The Android Security Bulletin contains details of security vulnerabilities affecting Android devices. Security patch levels of 2017-12-05 or later address all of these issues. To learn how to check a device's security patch level, see Check & update your Android version.

Android partners are notified of all issues at least a month before publication. 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 in Media framework that could enable a remote attacker using a specially crafted file to execute arbitrary code within the context of a privileged process. 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 turned off 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 Play Protect mitigations section for details on the Android security platform protections and Google Play Protect, which improve the security of the Android platform.

Note: Information on the latest over-the-air update (OTA) and firmware images for Google devices is available in the December 2017 Pixel / Nexus Security Bulletin.

Android and Google Service Mitigations

This is a summary of the mitigations provided by the Android security platform and service protections such as Google Play Protect. 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 through Google Play Protect and warns users about Potentially Harmful Applications. Google Play Protect is enabled by default on devices with Google Mobile Services, and is especially important for users who install apps from outside of Google Play.

2017-12-01 security patch level—Vulnerability details

In the sections below, we provide details for each of the security vulnerabilities that apply to the 2017-12-01 patch level. Vulnerabilities are grouped under the component that they affect. There is a description of the issue and a table with the CVE, associated references, type of vulnerability, severity, and updated AOSP versions (where applicable). When available, we 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.

Framework

The most severe vulnerability in this section could enable a local malicious application to bypass user interaction requirements in order to gain access to additional permissions.

CVE References Type Severity Updated AOSP versions CVE-2017-0807 A-35056974* EoP High 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2 CVE-2017-0870 A-62134807 EoP High 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2, 8.0 CVE-2017-0871 A-65281159 EoP High 8.0

Media framework

The most severe vulnerability in this section could enable a remote attacker using a specially crafted file to execute arbitrary code within the context of a privileged process.

CVE References Type Severity Updated AOSP versions CVE-2017-0872 A-65290323 RCE Critical 7.0, 7.1.1, 7.1.2, 8.0 CVE-2017-0876 A-64964675* RCE Critical 6.0 CVE-2017-0877 A-66372937* RCE Critical 6.0 CVE-2017-0878 A-65186291 RCE Critical 8.0 CVE-2017-13151 A-63874456 RCE Critical 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2, 8.0 CVE-2017-13153 A-65280854 EoP High 8.0 CVE-2017-0837 A-64340921 [2] EoP High 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2, 8.0 CVE-2017-0873 A-63316255 DoS High 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2, 8.0 CVE-2017-0874 A-63315932 DoS High 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2, 8.0 CVE-2017-0880 A-65646012 [2] DoS High 7.0, 7.1.1, 7.1.2 CVE-2017-13148 A-65717533 DoS High 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2, 8.0

System

The most severe vulnerability in this section could enable a proximate attacker to execute arbitrary code within the context of a privileged process.

CVE References Type Severity Updated AOSP versions CVE-2017-13160 A-37160362 RCE Critical 7.0, 7.1.1, 7.1.2, 8.0 CVE-2017-13156 A-64211847 EoP High 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2, 8.0 CVE-2017-13157 A-32990341 ID High 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2, 8.0 CVE-2017-13158 A-32879915 ID High 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2, 8.0 CVE-2017-13159 A-32879772 ID High 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2, 8.0

2017-12-05 security patch level—Vulnerability details

In the sections below, we provide details for each of the security vulnerabilities that apply to the 2017-12-05 patch level. Vulnerabilities are grouped under the component that they affect and include details such as the CVE, associated references, type of vulnerability, severity, component (where applicable), and updated AOSP versions (where applicable). When available, we 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.

Kernel components

The most severe vulnerability in this section could enable a local malicious application to execute arbitrary code within the context of a privileged process.

CVE References Type Severity Component CVE-2017-13162 A-64216036* EoP High Binder CVE-2017-0564 A-34276203* EoP High ION CVE-2017-7533 A-63689921

Upstream kernel EoP High File handling CVE-2017-13174 A-63100473* EoP High EDL

MediaTek components

The most severe vulnerability in this section could enable a local malicious application to execute arbitrary code within the context of a privileged process.

CVE References Type Severity Component CVE-2017-13170 A-36102397*

M-ALPS03359280 EoP High Display driver CVE-2017-13171 A-64316572*

M-ALPS03479086 EoP High Performance service CVE-2017-13173 A-28067350*

M-ALPS02672361 EoP High System server

NVIDIA components

The most severe vulnerability in this section could enable a local malicious application to execute arbitrary code within the context of a privileged process.

CVE References Type Severity Component CVE-2017-6262 A-38045794*

N-CVE-2017-6262 EoP High NVIDIA driver CVE-2017-6263 A-38046353*

N-CVE-2017-6263 EoP High NVIDIA driver CVE-2017-6276 A-63802421*

N-CVE-2017-6276 EoP High Mediaserver

Qualcomm components

The most severe vulnerability in this section could enable a remote attacker using a specially crafted file to execute arbitrary code within the context of a privileged process.

CVE References Type Severity Component CVE-2017-11043 A-64728953

QC-CR#2067820 RCE Critical WLAN CVE-2016-3706 A-34499281

QC-CR#1058691 [2] RCE Critical UDP RPC CVE-2016-4429 A-68946906

QC-CR#1058691 [2] RCE Critical UDP RPC CVE-2017-11007 A-66913719

QC-CR#2068824 EoP High Fastboot CVE-2017-14904 A-63662821*

QC-CR#2109325 EoP High Gralloc CVE-2017-9716 A-63868627

QC-CR#2006695 EoP High Qbt1000 driver CVE-2017-14897 A-65468973

QC-CR#2054091 EoP High RPMB driver CVE-2017-14902 A-65468970

QC-CR#2061287 EoP High MProc CVE-2017-14895 A-65468977

QC-CR#2009308 EoP High WLAN

Qualcomm closed-source components

These vulnerabilities affect Qualcomm components and are described in further detail in the appropriate Qualcomm AMSS security bulletin or security alert. The severity assessment of these issues is provided directly by Qualcomm.

CVE References Type Severity Component CVE-2017-6211 A-36217326* N/A Critical Closed-source component CVE-2017-14908 A-62212840* N/A High Closed-source component CVE-2017-14909 A-62212839* N/A High Closed-source component CVE-2017-14914 A-62212297* N/A High Closed-source component CVE-2017-14916 A-62212841* N/A High Closed-source component CVE-2017-14917 A-62212740* N/A High Closed-source component CVE-2017-14918 A-65946406* N/A High Closed-source component CVE-2017-11005 A-66913715* N/A High Closed-source component CVE-2017-11006 A-66913717* N/A High Closed-source component

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, see Check & update your Android version.

Security patch levels of 2017-12-01 or later address all issues associated with the 2017-12-01 security patch level.

Security patch levels of 2017-12-05 or later address all issues associated with the 2017-12-05 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]:[2017-12-01]

[ro.build.version.security_patch]:[2017-12-05]

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 2017-12-01 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 2017-12-05 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. 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

4. 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

5. 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 Nexus devices available from the Google Developer site.

6. Why are security vulnerabilities split between this bulletin and device/partner security bulletins, such as the Pixel / Nexus bulletin?

Security vulnerabilities that are documented in this security bulletin are required in order to declare the latest security patch level on Android devices. Additional security vulnerabilities that are documented in the device / partner security bulletins are not required for declaring a security patch level. Android device and chipset manufacturers are encouraged to document the presence of other fixes on their devices through their own security websites, such as the Samsung, LGE, or Pixel / Nexus security bulletins.

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