Published December 5, 2022
The Android Automotive OS (AAOS) Update Bulletin contains details of
security vulnerabilities affecting the Android Automotive OS platform.
The full AAOS update comprises the security patch level of 2022-12-05 or
later from the
December 2022 Android Security Bulletin
in addition to
all issues in this bulletin.
We encourage all customers to accept these updates to their devices.
The most severe of these issues is a high security vulnerability in the
Platform Apps 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.
Announcements
-
In addition to the security vulnerabilities described in the December 2022
Android Security Bulletin, the December 2022 Android Automotive OS Update
Bulletin also contains patches specifically for AAOS vulnerabilities as
described below.
2022-12-01
security patch level vulnerability details
In the sections below, we provide details for each of the security
vulnerabilities that apply to the 2022-12-01 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
.
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-2021-0481
|
A-172939189
|
EoP
|
High
|
10, 11
|
CVE-2021-39706
|
A-200164168
|
EoP
|
High
|
10, 11
|
CVE-2021-39707
|
A-200688991
|
EoP
|
High
|
10, 11
|
CVE-2022-20144
|
A-250637906
|
EoP
|
High
|
10, 11
|
CVE-2022-20223
|
A-223578534
|
EoP
|
High
|
10, 11
|
CVE-2022-20348
|
A-250910523
|
EoP
|
High
|
10, 11
|
CVE-2021-39631
|
A-193890833
|
ID
|
High
|
10, 11, 12, 12L, 13
|
System
The vulnerability in this section could lead to local escalation of privilege
with User execution privileges needed.
CVE
|
References
|
Type
|
Severity
|
Updated AOSP versions
|
CVE-2021-0954
|
A-143559931
|
EoP
|
High
|
11, 12, 12L, 13
|
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
Google device update schedule
.
- Security patch levels of 2022-12-01 or later address
all issues associated with the 2022-12-01 security patch
level.
Device manufacturers that include these updates should set the patch
string level to:
- [ro.build.version.security_patch]:[2022-12-01]
For some devices on Android 10 or later, the Google Play system update
will have a date string that matches the 2022-12-01
security patch level.
Please see
this article
for more details on how
to install
security updates.
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 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
.
5. 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
Versions
Version
|
Date
|
Notes
|
1.0
|
December 5, 2022
|
Bulletin Published
|