Headline
CVE-2022-26448: September 2022
In apusys, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07063849; Issue ID: ALPS07063849.
September 2022 Product Security Bulletin
Published 2022-09-05
The MediaTek Product Security Bulletin contains details of security vulnerabilities affecting MediaTek Smartphone, Tablet, AIoT, Smart display, Smart platform, OTT and TV chipsets. Device OEMs have been notified of all the issues and the corresponding security patches for at least two months before publication.
The severity of the identified vulnerabilities was conducted based on the Common Vulnerability Scoring System version 3.1 (CVSS v3.1).
****Summary****
Severity
CVEs
High
CVE-2022-26447
Medium
CVE-2022-26448, CVE-2022-26449, CVE-2022-26450, CVE-2022-26451, CVE-2022-26453, CVE-2022-26454, CVE-2022-26455, CVE-2022-26456, CVE-2022-26457, CVE-2022-26458, CVE-2022-26459, CVE-2022-26460, CVE-2022-26461, CVE-2022-26462, CVE-2022-26463, CVE-2022-26464, CVE-2022-26465, CVE-2022-26466, CVE-2022-26467, CVE-2022-26468, CVE-2022-26469, CVE-2022-26470
****Details****
CVE
CVE-2022-26447
Title
Improper input validation in BT firmware
Severity
High
Vulnerability Type
RCE
CWE
CWE-20 Improper Input Validation
Description
In BT firmware, there is a possible out of bounds write due to a missing bounds check. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6580, MT6735, MT6737, MT6739, MT6750S, MT6753, MT6755S, MT6757, MT6757C, MT6757CD, MT6757CH, MT6763, MT6771, MT8163, MT8167, MT8167S, MT8173, MT8183, MT8321, MT8362A, MT8385, MT8518, MT8532, MT8765, MT8788
Affected Software Versions
Android 10.0, 11.0, 12.0 and Yocto 3.1
CVE
CVE-2022-26448
Title
Improper input validation in apusys
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-20 Improper Input Validation
Description
In apusys, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6853T, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893
Affected Software Versions
Android 11.0, 12.0
CVE
CVE-2022-26449
Title
Improper input validation in apusys
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-20 Improper Input Validation
Description
In apusys, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6879, MT6895, MT6983
Affected Software Versions
Android 12.0
CVE
CVE-2022-26450
Title
Concurrent execution using shared resource with improper synchronization (‘race condition’) in apusys
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization (‘Race Condition’)
Description
In apusys, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6879, MT6895, MT6983
Affected Software Versions
Android 12.0
CVE
CVE-2022-26451
Title
Improper synchronization in ged
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-662 Improper Synchronization
Description
In ged, there is a possible use after free due to improper locking. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6789, MT6855, MT6879, MT6895, MT6983, MT8168, MT8365
Affected Software Versions
Android 12.0
CVE
CVE-2022-26453
Title
Use after free in teei
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-416 Use After Free
Description
In teei, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6761, MT6765, MT6768, MT6771, MT6779, MT6781, MT6785, MT6833, MT6853, MT6875, MT6877, MT6879, MT6885, MT6893, MT6895, MT6983
Affected Software Versions
Android 11.0, 12.0
CVE
CVE-2022-26454
Title
Integer overflow or wraparound in teei
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-190 Integer Overflow or Wraparound
Description
In teei, there is a possible memory corruption due to an integer overflow. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6761, MT6765, MT6768, MT6771, MT6779, MT6781, MT6785, MT6833, MT6853, MT6875, MT6877, MT6879, MT6885, MT6893, MT6895, MT6983
Affected Software Versions
Android 11.0, 12.0
CVE
CVE-2022-26455
Title
Improper handling of exceptional conditions in gz
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-755 Improper Handling of Exceptional Conditions
Description
In gz, there is a possible memory corruption due to incorrect error handling. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6789, MT6855, MT6879, MT6895, MT6983
Affected Software Versions
Android 12.0
CVE
CVE-2022-26456
Title
Unix symbolic link (symlink) following in vow
Severity
Medium
Vulnerability Type
ID
CWE
CWE-61 UNIX Symbolic Link (Symlink) Following
Description
In vow, there is a possible information disclosure due to a symbolic link following. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6769, MT6781, MT6785, MT6789, MT6833, MT6853, MT6855, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT6983, MT8185, MT8789, MT8791, MT8797
Affected Software Versions
Android 11.0
CVE
CVE-2022-26457
Title
Improper input validation in vow
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-20 Improper Input Validation
Description
In vow, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6769, MT6781, MT6785, MT6833, MT6855, MT6877, MT6879, MT6893, MT6983, MT8791, MT8797
Affected Software Versions
Android 11.0, 12.0
CVE
CVE-2022-26458
Title
Improper input validation in vow
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-20 Improper Input Validation
Description
In vow, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6853, MT6855, MT6873, MT6877, MT6883, MT6885, MT6893, MT6895, MT6983, MT8791, MT8797
Affected Software Versions
Android 11.0, 12.0
CVE
CVE-2022-26459
Title
Integer overflow or wraparound in vow
Severity
Medium
Vulnerability Type
ID
CWE
CWE-190 Integer Overflow or Wraparound
Description
In vow, there is a possible out of bounds read due to an integer overflow. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6833, MT6853, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6889, MT6893, MT6895, MT6983, MT8791, MT8797
Affected Software Versions
Android 11.0, 12.0
CVE
CVE-2022-26460
Title
Improper input validation in vow
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-20 Improper Input Validation
Description
In vow, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6833, MT6853, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6889, MT6893, MT6895, MT6983, MT8791, MT8797
Affected Software Versions
Android 11.0, 12.0
CVE
CVE-2022-26461
Title
Undefined behavior for input to api in vow
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-475 Undefined Behavior for Input to API
Description
In vow, there is a possible undefined behavior due to an API misuse. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6833, MT6853, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6889, MT6893, MT6895, MT6983, MT8791, MT8797
Affected Software Versions
Android 11.0, 12.0
CVE
CVE-2022-26462
Title
Improper input validation in vow
Severity
Medium
Vulnerability Type
ID
CWE
CWE-20 Improper Input Validation
Description
In vow, there is a possible out of bounds read due to an incorrect bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6833, MT6853, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6889, MT6893, MT6895, MT6983, MT8791, MT8797
Affected Software Versions
Android 11.0, 12.0
CVE
CVE-2022-26463
Title
Improper input validation in vow
Severity
Medium
Vulnerability Type
ID
CWE
CWE-20 Improper Input Validation
Description
In vow, there is a possible out of bounds read due to an incorrect bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6833, MT6853, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6889, MT6893, MT6895, MT6983, MT8791, MT8797
Affected Software Versions
Android 11.0, 12.0
CVE
CVE-2022-26464
Title
Improper input validation in vow
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-20 Improper Input Validation
Description
In vow, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6833, MT6853, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6889, MT6893, MT6895, MT6983, MT8791, MT8797
Affected Software Versions
Android 11.0, 12.0
CVE
CVE-2022-26465
Title
Improper input validation in audio ipi
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-20 Improper Input Validation
Description
In audio ipi, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6779, MT6781, MT6785, MT6853, MT6853T, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6889, MT6893, MT6895, MT6983, MT8512A, MT8518, MT8791, MT8797, MT8798
Affected Software Versions
Android 11.0, 12.0 and Yocto 3.1
CVE
CVE-2022-26466
Title
Integer overflow or wraparound in audio ipi
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-190 Integer Overflow or Wraparound
Description
In audio ipi, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6779, MT6781, MT6785, MT6853, MT6853T, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6889, MT6893, MT6895, MT6983, MT8512A, MT8518, MT8519_M1V1, MT8519_P1V1, MT8791, MT8797, MT8798
Affected Software Versions
Android 11.0, 12.0 and Yocto 3.1
CVE
CVE-2022-26467
Title
Improper input validation in rpmb
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-20 Improper Input Validation
Description
In rpmb, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6580, MT6735, MT6737, MT6739, MT6753, MT6761, MT6765, MT6768, MT6771, MT6779, MT6781, MT6785, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6889, MT6893, MT6895, MT6983, MT8168, MT8183, MT8321, MT8365, MT8385, MT8666, MT8675, MT8765, MT8768, MT8786, MT8788, MT8797
Affected Software Versions
Android 11.0, 12.0
CVE
CVE-2022-26468
Title
Improper input validation in preloader (usb)
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-20 Improper Input Validation
Description
In preloader (usb), there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege, for an attacker who has physical access to the device, with no additional execution privileges needed. User interaction is needed for exploitation.
Affected Chipsets
MT6735, MT6739, MT6761, MT6763, MT6765, MT6768, MT6771, MT6779, MT6781, MT6785, MT6833, MT6853, MT6855, MT6873, MT6877, MT6879, MT6885, MT6893, MT6895, MT6983, MT8163, MT8167, MT8167S, MT8168, MT8173, MT8175, MT8183, MT8185, MT8321, MT8362A, MT8365, MT8385, MT8666, MT8667, MT8675, MT8735A, MT8735B, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8797
Affected Software Versions
Android 11.0, 12.0
CVE
CVE-2022-26469
Title
Use of externally-controlled input to select classes or code (‘unsafe reflection’) in MtkEmail
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-470 Use of Externally-Controlled Input to Select Classes or Code (‘Unsafe Reflection’)
Description
In MtkEmail, there is a possible escalation of privilege due to fragment injection. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6580, MT6735, MT6737, MT6739, MT6761, MT6765, MT6768, MT6771, MT6779, MT6781, MT6785, MT6833, MT6853, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6889, MT6895, MT6983, MT8167, MT8167S, MT8168, MT8173, MT8175, MT8185, MT8321, MT8362A, MT8365, MT8385, MT8666, MT8675, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8797
Affected Software Versions
Android 11.0, 12.0
CVE
CVE-2022-26470
Title
Improper input validation in aie
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-20 Improper Input Validation
Description
In aie, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6879, MT6895, MT6983, MT8321, MT8385, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789
Affected Software Versions
Android 12.0
****Vulnerability Type Definition****
Abbreviation
Definition
RCE
Remote Code Execution
EoP
Elevation of Privilege
ID
Information Disclosure
DoS
Denial of Service
N/A
Classification not available
****Versions****
Version
Date
Description
1.0
September 5, 2022
Bulletin published.
****Notes****
Information above is generated only at the time of creation of this Security Bulletin. The list of affected chipsets could be not complete. For any further information, device OEMs can reach your MediaTek contact person if needed.
If you want to report a security vulnerability in MediaTek chipsets or products, please go to Report Security Vulnerability page on MediaTek website.
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