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CVE-2021-0696: Android Security Bulletin—October 2022  |  Android Open Source Project

In dllist_remove_node of TBD, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android SoCAndroid ID: A-242344778

CVE
#vulnerability#android#google#dos#rce#nokia#samsung#huawei

Published October 3, 2022 | Updated October 5, 2022

The Android Security Bulletin contains details of security vulnerabilities affecting Android devices. Security patch levels of 2022-10-05 or later address all of these issues. To learn how to check a device’s security patch level, see Check and update your Android version.

Android partners are notified of all issues at least a month before publication. Source code patches for these issues will be released to the Android Open Source Project (AOSP) repository in the next 48 hours. We will revise this bulletin with the AOSP links when they are available.

The most severe of these issues is a critical security vulnerability in the Framework component that could lead to local escalation of privilege with no additional execution privileges needed. 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.

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.

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.

2022-10-01 security patch level vulnerability details

In the sections below, we provide details for each of the security vulnerabilities that apply to the 2022-10-01 patch level. Vulnerabilities are grouped under the component they affect. Issues are described in the tables below and include CVE ID, 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. Devices with Android 10 and later may receive security updates as well as Google Play system updates.

Framework

The most severe vulnerability in this section could lead to local escalation of privilege with no additional execution privileges needed.

CVE

References

Type

Severity

Updated AOSP versions

CVE-2022-20419

A-237290578

ID

Critical

12L, 13

CVE-2022-20420

A-238377411

EoP

High

13

CVE-2022-20351

A-224771921

ID

High

10, 11, 12, 12L

CVE-2021-39624

A-67862680

DoS

High

11, 12, 12L

CVE-2021-39758

A-205130886

EoP

Moderate

10, 11, 12

CVE-2022-20415

A-231322873

EoP

Moderate

10, 11, 12, 12L, 13

Media Framework

The most severe vulnerability in this section could lead to local information disclosure with User execution privileges needed.

CVE

References

Type

Severity

Updated AOSP versions

CVE-2022-20413

A-235850634

ID

High

10, 11, 12, 12L, 13

CVE-2022-20418

A-231986464

ID

High

12, 12L, 13

System

The most severe vulnerability in this section could lead to local escalation of privilege with System execution privileges needed.

CVE

References

Type

Severity

Updated AOSP versions

CVE-2022-20412

A-230794395

EoP

High

10, 11, 12, 12L, 13

CVE-2022-20416

A-237717857

EoP

High

12, 12L, 13

CVE-2022-20417

A-237288416

EoP

High

12, 12L, 13

CVE-2021-39673

A-195410559 [2]

ID

High

13

CVE-2022-20394

A-204906124

ID

High

10, 11, 12, 12L

CVE-2022-20410

A-205570663

ID

High

10, 11, 12, 12L, 13

CVE-2022-20425

A-235823407

DoS

High

10, 11, 12, 12L, 13

Google Play system updates

There are no security issues addressed in Google Play system updates (Project Mainline) this month.

2022-10-05 security patch level vulnerability details

In the sections below, we provide details for each of the security vulnerabilities that apply to the 2022-10-05 patch level. Vulnerabilities are grouped under the component they affect. Issues are described in the tables below and include CVE ID, 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.

Kernel

The most severe vulnerability in this section could lead to local escalation of privilege with no additional execution privileges needed.

CVE

References

Type

Severity

Component

CVE-2022-1786

A-230867044
Upstream kernel [2]

EoP

High

io_uring

CVE-2022-20421

A-239630375
Upstream kernel

EoP

High

Binder driver

CVE-2022-20422

A-237540956
Upstream kernel

EoP

High

armv8 emulation

CVE-2022-20423

A-239842288
Upstream kernel [2]

EoP

High

USB

Kernel components

The vulnerability in this section could lead to local escalation of privilege with System execution privileges needed.

CVE

References

Type

Severity

Component

CVE-2022-20409

A-238177383
Upstream kernel

EoP

Moderate

io_uring

Imagination Technologies

These vulnerabilities affect Imagination Technologies components and further details are available directly from Imagination Technologies. The severity assessment of these issues is provided directly by Imagination Technologies.

CVE

References

Severity

Component

CVE-2021-0696

A-242344778 *

High

PowerVR-GPU

CVE-2021-0951

A-242345085 *

High

PowerVR-GPU

CVE-2021-0699

A-242345178 *

High

PowerVR-GPU

MediaTek components

These vulnerabilities affect MediaTek components and further details are available directly from MediaTek. The severity assessment of these issues is provided directly by MediaTek.

CVE

References

Severity

Component

CVE-2022-26471

A-234037999
M-ALPS07319121 *

High

telephony

CVE-2022-26472

A-234037216
M-ALPS07319095 *

High

ims

UNISOC components

These vulnerabilities affect UNISOC components and further details are available directly from UNISOC. The severity assessment of these issues is provided directly by UNISOC.

CVE

References

Severity

Component

CVE-2022-20430

A-242221233
U-1882896 *

High

Telephony

CVE-2022-20431

A-242221238
U-1882896 *

High

Telephony

CVE-2022-20432

A-242221899
U-1882896 *

High

Telephony

CVE-2022-20433

A-242221901
U-1882896 *

High

Telephony

CVE-2022-20434

A-242244028
U-1882896 *

High

Telephony

CVE-2022-20435

A-242248367
U-1901996 *

High

Android

CVE-2022-20436

A-242248369
U-1901996 *

High

Android

CVE-2022-20437

A-242258929
U-1916307 *

High

Android

CVE-2022-20438

A-242259920
U-1916307 *

High

Android

CVE-2022-20439

A-242266172
U-1916307 *

High

Andorid

CVE-2022-20440

A-242259918
U-1916307 *

High

Android

Qualcomm components

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

CVE

References

Severity

Component

CVE-2022-25720

A-238214313
QC-CR#3048142
QC-CR#3049634
QC-CR#3051517
QC-CR#3102432

Critical

WLAN

CVE-2022-22077

A-238108281
QC-CR#3155201

High

Kernel

CVE-2022-25723

A-238108282
QC-CR#3072203

High

Kernel

CVE-2022-33214

A-238103940
QC-CR#3178237

High

Display

CVE-2022-33217

A-238103939
QC-CR#3182864

High

Kernel

Qualcomm closed-source components

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

CVE

References

Severity

Component

CVE-2022-25718

A-238106982 *

Critical

Closed-source component

CVE-2022-25748

A-238106075 *

Critical

Closed-source component

CVE-2022-25660

A-228101818 *

High

Closed-source component

CVE-2022-25661

A-228101758 *

High

Closed-source component

CVE-2022-25687

A-238106629 *

High

Closed-source component

CVE-2022-25736

A-238214356 *

High

Closed-source component

CVE-2022-25749

A-238106077 *

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 and update your Android version.

  • Security patch levels of 2022-10-01 or later address all issues associated with the 2022-10-01 security patch level.
  • Security patch levels of 2022-10-05 or later address all issues associated with the 2022-10-05 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]:[2022-10-01]
  • [ro.build.version.security_patch]:[2022-10-05]

For some devices on Android 10 or later, the Google Play system update will have a date string that matches the 2022-10-01 security patch level. Please see this article for more details on how to install security updates.

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 2022-10-01 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 2022-10-05 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

U-

UNISOC reference number

5. 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 corresponding reference ID. The update for that issue is generally contained in the latest binary drivers for Pixel 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 bulletin?

Security vulnerabilities that are documented in this security bulletin are required 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 may also publish security vulnerability details specific to their products, such as Google, Huawei, LGE, Motorola, Nokia, or Samsung.

Versions

Version

Date

Notes

1.0

October 3, 2022

Bulletin Published

1.1

October 5, 2022

Bulletin revised to include AOSP links

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Categories: Exploits and vulnerabilities Categories: News Tags: Google Tags: Android Tags: Qualcomm Tags: WLAN Tags: CVE-2022-25720 Tags: CVE-2022-25718 Tags: CVE-2022-25748 Tags: CVE-2022-20419 Tags: ActivityManager Google has issued patches for 42 vulnerabilities, including four marked critical (Read more...) The post Android vulnerabilities could allow arbitrary code execution appeared first on Malwarebytes Labs.

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