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CVE-2021-0769: Pixel Update Bulletin—December 2021  |  Android Open Source Project

In onCreate of AllowBindAppWidgetActivity.java, there is a possible bypass of user interaction requirements due to unclear UI. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-184676316

CVE
#vulnerability#android#google#dos#java

Published December 6, 2021 | Updated December 8, 2021

The Pixel Update Bulletin contains details of security vulnerabilities and functional improvements affecting supported Pixel devices (Google devices). For Google devices, security patch levels of 2021-12-05 or later address all issues in this bulletin and all issues in the December 2021 Android Security Bulletin. To learn how to check a device’s security patch level, see Check and update your Android version.

All supported Google devices will receive an update to the 2021-12-05 patch level. We encourage all customers to accept these updates to their devices.

Announcements

  • In addition to the security vulnerabilities described in the December 2021 ndroid Security Bulletin, Google devices also contain patches for the security vulnerabilities described below.

Security patches

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 Android Open Source Project (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

CVE

References

Type

Severity

Updated AOSP versions

CVE-2021-0981

A-191981182

EoP

Moderate

12

CVE-2021-0984

A-192475653

EoP

Moderate

12

CVE-2021-0985

A-190403923

EoP

Moderate

12

CVE-2021-1019

A-195031401

EoP

Moderate

12

CVE-2021-1024

A-191283525

EoP

Moderate

12

CVE-2021-0978

A-192587406

ID

Moderate

12

CVE-2021-0979

A-191772737

ID

Moderate

12

CVE-2021-0982

A-192368508

ID

Moderate

12

CVE-2021-0983

A-192245204 [2]

ID

Moderate

12

CVE-2021-0986

A-192247339

ID

Moderate

12

CVE-2021-0988

A-191954233 [2]

ID

Moderate

12

CVE-2021-1009

A-189858128

ID

Moderate

12

CVE-2021-1010

A-189857801

ID

Moderate

12

CVE-2021-1011

A-188219307

ID

Moderate

12

CVE-2021-1013

A-186404356

ID

Moderate

12

CVE-2021-1030

A-194697001

ID

Moderate

12

CVE-2021-1031

A-194697004

ID

Moderate

12

CVE-2021-1032

A-184745603

ID

Moderate

12

CVE-2021-0993

A-193849901

DoS

Moderate

12

Media Framework

CVE

References

Type

Severity

Updated AOSP versions

CVE-2021-1003

A-189857506

EoP

Moderate

12

CVE-2021-1027

A-193033243

EoP

Moderate

12

CVE-2021-1028

A-193034683

EoP

Moderate

12

CVE-2021-1029

A-193034677

EoP

Moderate

12

CVE-2021-0976

A-199680600

ID

Moderate

12

CVE-2021-0998

A-193442575

ID

Moderate

12

CVE-2021-1001

A-190435883

ID

Moderate

12

CVE-2021-1002

A-194533433

ID

Moderate

12

CVE-2021-1018

A-194110891

ID

Moderate

12

Messaging

CVE

References

Type

Severity

Updated AOSP versions

CVE-2021-0973

A-197328178

ID

Moderate

12

System

CVE

References

Type

Severity

Updated AOSP versions

CVE-2021-0769

A-184676316

EoP

Moderate

12

CVE-2021-0977

A-183487770

EoP

Moderate

12

CVE-2021-0992

A-180104327

EoP

Moderate

12

CVE-2021-0999

A-196858999

EoP

Moderate

12

CVE-2021-1004

A-197749180

EoP

Moderate

12

CVE-2021-1016

A-183610267

EoP

Moderate

12

CVE-2021-1017

A-182583850

EoP

Moderate

12

CVE-2021-1020

A-195111725

EoP

Moderate

12

CVE-2021-1021

A-195031703

EoP

Moderate

12

CVE-2021-0987

A-190619791

ID

Moderate

12

CVE-2021-0989

A-194105812

ID

Moderate

12

CVE-2021-0990

A-185591180

ID

Moderate

12

CVE-2021-0991

A-181588752

ID

Moderate

12

CVE-2021-0994

A-193801134

ID

Moderate

12

CVE-2021-0995

A-197536547

ID

Moderate

12

CVE-2021-0996

A-181346545

ID

Moderate

12

CVE-2021-0997

A-191086488

ID

Moderate

12

CVE-2021-1005

A-186530889

ID

Moderate

12

CVE-2021-1006

A-183961974

ID

Moderate

12

CVE-2021-1007

A-167759047

ID

Moderate

12

CVE-2021-1012

A-195412179

ID

Moderate

12

CVE-2021-1014

A-186776740

ID

Moderate

12

CVE-2021-1015

A-186530496

ID

Moderate

12

CVE-2021-1023

A-195963373

ID

Moderate

12

CVE-2021-1025

A-193800652

ID

Moderate

12

CVE-2021-1026

A-194798757

ID

Moderate

12

CVE-2021-1034

A-193441322

ID

Moderate

12

CVE-2021-1008

A-197327688

DoS

Moderate

12

CVE-2021-1022

A-180420059

DoS

Moderate

12

Kernel components

CVE

References

Type

Severity

Component

CVE-2020-25668

A-190228658
Upstream kernel

EoP

Moderate

Kernel

CVE-2021-23134

A-188883590
Upstream kernel

EoP

Moderate

NFC

CVE-2021-33200

A-190011721
Upstream kernel [2] [3]

EoP

Moderate

Kernel

CVE-2021-39656

A-174049066
Upstream kernel

EoP

Moderate

Kernel

CVE-2021-39636

A-120612905
Upstream kernel [2] [3] [4] [5]

ID

Moderate

Kernel

CVE-2021-39648

A-160822094
Upstream kernel

ID

Moderate

Kernel

CVE-2021-39657

A-194696049
Upstream kernel

ID

Moderate

Kernel

Pixel

CVE

References

Type

Severity

Component

CVE-2021-39639

A-198291476 *

EoP

High

Bootloader

CVE-2021-39640

A-157294279 *

EoP

High

USB

CVE-2021-39644

A-199809304 *

EoP

High

Bootloader

CVE-2021-39645

A-199805112 *

EoP

High

Bootloader

CVE-2021-1047

A-197966306 *

ID

High

Titan M2

CVE-2021-39638

A-195607566 *

EoP

Moderate

Camera

CVE-2021-39641

A-126949257 *

EoP

Moderate

Bootloader

CVE-2021-39642

A-195731663 *

EoP

Moderate

Camera

CVE-2021-39643

A-195573629 *

EoP

Moderate

Titan M2

CVE-2021-39649

A-174049006 *

EoP

Moderate

Audio

CVE-2021-39650

A-169763055 *

EoP

Moderate

Kernel

CVE-2021-39651

A-193438173 *

EoP

Moderate

Biometrics

CVE-2021-39652

A-194499021 *

EoP

Moderate

Touch

CVE-2021-39653

A-193443223 *

EoP

Moderate

Bootloader

CVE-2021-39655

A-192641593 *

EoP

Moderate

Kernel

CVE-2021-1046

A-195609074 *

ID

Moderate

Camera

CVE-2021-39637

A-193579873 *

ID

Moderate

System

CVE-2021-39646

A-201537251 *

ID

Moderate

Bootloader

CVE-2021-39647

A-198713939 *

ID

Moderate

Bootloader

Qualcomm components

CVE

References

Severity

Component

CVE-2021-30298

A-190408641
QC-CR#2873209 [2]

Moderate

Kernel

Functional patches

For details on the new bug fixes and functional patches included in this release, refer to the Pixel Community forum.

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 2021-12-05 or later address all issues associated with the 2021-12-05 security patch level and all previous patch levels. To learn how to check a device’s security patch level, read the instructions on the Google device 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

U-

UNISOC reference number

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

Issues that are not publicly available have an * 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.

Versions

Version

Date

Notes

1.0

December 6, 2021

Bulletin Released

1.1

December 8, 2021

Bulletin revised to include AOSP links

Related news

CVE-2021-0708: Android Security Bulletin—October 2021  |  Android Open Source Project

In runDumpHeap of ActivityManagerShellCommand.java, there is a possible deletion of system files due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-9 Android-10 Android-11 Android-8.1Android ID: A-183262161

CVE-2021-0870: Android Security Bulletin—October 2021  |  Android Open Source Project

In RW_SetActivatedTagType of rw_main.cc, there is possible memory corruption due to a race condition. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-9 Android-10 Android-11 Android-8.1Android ID: A-192472262

CVE-2021-0483: Android Security Bulletin—October 2021  |  Android Open Source Project

In multiple methods of AAudioService, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11Android ID: A-153358911

CVE-2021-0703: Android Security Bulletin—October 2021  |  Android Open Source Project

In SecondStageMain of init.cpp, there is a possible use after free due to incorrect shared_ptr usage. This could lead to local escalation of privilege if the attacker has physical access to the device, with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-184569329

CVE-2021-0652: Android Security Bulletin—October 2021  |  Android Open Source Project

In VectorDrawable::VectorDrawable of VectorDrawable.java, there is a possible way to introduce a memory corruption due to sharing of not thread-safe objects. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-8.1 Android-9 Android-10 Android-11Android ID: A-185178568

CVE-2021-0692: Android Security Bulletin—September 2021  |  Android Open Source Project

In sendBroadcastToInstaller of FirstScreenBroadcast.java, there is a possible activity launch due to an unsafe PendingIntent. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-9 Android-10Android ID: A-179289753

CVE-2021-0595: Android Security Bulletin—September 2021  |  Android Open Source Project

In lockAllProfileTasks of RootWindowContainer.java, there is a possible way to access the work profile without the profile PIN, after logging in. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-9 Android-10 Android-11 Android-8.1Android ID: A-177457096

CVE-2021-0683: Android Security Bulletin—September 2021  |  Android Open Source Project

In runTraceIpcStop of ActivityManagerShellCommand.java, there is a possible deletion of system files due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-8.1 Android-9 Android-10Android ID: A-185398942

CVE-2021-0684: Android Security Bulletin—September 2021  |  Android Open Source Project

In TouchInputMapper::sync of TouchInputMapper.cpp, there is a possible out of bounds write due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-8.1 Android-9Android ID: A-179839665

CVE-2021-0688: Android Security Bulletin—September 2021  |  Android Open Source Project

In lockNow of PhoneWindowManager.java, there is a possible lock screen bypass due to a race condition. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-8.1 Android-9Android ID: A-161149543

CVE-2021-0690: Android Security Bulletin—September 2021  |  Android Open Source Project

In ih264d_mark_err_slice_skip of ih264d_parse_pslice.c, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-9 Android-10 Android-11 Android-8.1Android ID: A-182152757

CVE-2021-0687: Android Security Bulletin—September 2021  |  Android Open Source Project

In ellipsize of Layout.java, there is a possible ANR due to improper input validation. This could lead to local denial of service with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-9 Android-10 Android-11 Android-8.1Android ID: A-188913943

CVE-2021-0691: Android Security Bulletin—September 2021  |  Android Open Source Project

In the SELinux policy configured in system_app.te, there is a possible way for system_app to gain code execution in other processes due to an overly-permissive SELinux policy. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-188554048

CVE-2021-0462: Pixel Update Bulletin—March 2021  |  Android Open Source Project

In the NXP NFC firmware, there is a possible insecure firmware update due to a logic error. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-168799695

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