July 2023 Product Security Bulletin

Published 2023-07-03
The MediaTek Product Security Bulletin contains details of security vulnerabilities affecting MediaTek Smartphone, Tablet, AIoT, Smart display, Smart platform, OTT and Wi-Fi 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-2023-20754, CVE-2023-20755
Medium CVE-2023-20753, CVE-2023-20756, CVE-2023-20757, CVE-2023-20758, CVE-2023-20759, CVE-2023-20760, CVE-2023-20761, CVE-2023-20766, CVE-2023-20767, CVE-2023-20768, CVE-2023-20771, CVE-2023-20772, CVE-2023-20773, CVE-2023-20774, CVE-2023-20775, CVE-2023-20689, CVE-2023-20690, CVE-2023-20691, CVE-2023-20692, CVE-2023-20693, CVE-2022-32666, CVE-2023-20748


Details

CVE CVE-2023-20754
Title Integer overflow or wraparound in keyinstall
Severity High
Vulnerability Type EoP
CWE CWE-190 Integer Overflow or Wraparound
Description In keyinstall, 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 MT6580, MT6731, MT6735, MT6737, MT6739, MT6753, MT6757, MT6757C, MT6757CD, MT6757CH, MT6761, MT6762, MT6763, MT6765, MT6768, MT6769, MT6771, MT6779, MT6781, MT6785, MT6789, MT6833, MT6835, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6886, MT6889, MT6891, MT6893, MT6895, MT6983, MT6985, MT8185, MT8321, MT8385, MT8666, MT8667, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8797
Affected Software Versions Android 11.0, 12.0, 13.0

CVE CVE-2023-20755
Title Improper input validation in keyinstall
Severity High
Vulnerability Type EoP
CWE CWE-20 Improper Input Validation
Description In keyinstall, 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 MT6580, MT6731, MT6735, MT6737, MT6739, MT6753, MT6757, MT6757C, MT6757CD, MT6757CH, MT6761, MT6762, MT6763, MT6765, MT6768, MT6769, MT6771, MT6779, MT6781, MT6785, MT6789, MT6833, MT6835, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6886, MT6889, MT6891, MT6893, MT6895, MT6983, MT6985, MT8185, MT8321, MT8385, MT8666, MT8667, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8797
Affected Software Versions Android 11.0, 12.0, 13.0

CVE CVE-2023-20753
Title Out-of-bounds write in rpmb
Severity Medium
Vulnerability Type EoP
CWE CWE-787 Out-of-bounds Write
Description In rpmb, there is a possible out of bounds write 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.
Affected Chipsets MT6580, MT6731, MT6735, MT6737, MT6739, MT6753, MT6757, MT6757C, MT6757CD, MT6757CH, MT6761, MT6762, MT6763, MT6765, MT6768, MT6769, MT6771, MT6779, MT6781, MT6785, MT6789, MT6833, MT6835, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6886, MT6889, MT6891, MT6893, MT6895, MT6983, MT6985, MT8185, MT8321, MT8385, MT8666, MT8673, MT8675, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788, MT8789, MT8791T, MT8797
Affected Software Versions Android 11.0, 12.0, 13.0

CVE CVE-2023-20756
Title Integer overflow or wraparound in keyinstall
Severity Medium
Vulnerability Type EoP
CWE CWE-190 Integer Overflow or Wraparound
Description In keyinstall, 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 MT6580, MT6731, MT6735, MT6737, MT6739, MT6753, MT6757, MT6757C, MT6757CD, MT6757CH, MT6761, MT6762, MT6763, MT6765, MT6768, MT6769, MT6771, MT6779, MT6781, MT6785, MT6789, MT6833, MT6835, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6886, MT6889, MT6891, MT6893, MT6895, MT6983, MT6985, MT8185, MT8321, MT8385, MT8666, MT8667, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8797
Affected Software Versions Android 12.0, 13.0

CVE CVE-2023-20757
Title Improper input validation in cmdq
Severity Medium
Vulnerability Type EoP
CWE CWE-20 Improper Input Validation
Description In cmdq, 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 MT6739, MT6768, MT6771, MT6785, MT6833, MT6853, MT6853T, MT6873, MT6877, MT6883, MT6885, MT6889, MT6893, MT8786, MT8789, MT8797
Affected Software Versions Android 12.0, 13.0

CVE CVE-2023-20758
Title Improper input validation in cmdq
Severity Medium
Vulnerability Type DoS
CWE CWE-20 Improper Input Validation
Description In cmdq, there is a possible memory corruption due to a missing bounds check. This could lead to local denial of service with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets MT6739, MT6768, MT6771, MT6781, MT6785, MT6833, MT6853, MT6853T, MT6873, MT6877, MT6883, MT6885, MT6889, MT6893, MT8786, MT8789, MT8797
Affected Software Versions Android 12.0, 13.0

CVE CVE-2023-20759
Title Improper input validation in cmdq
Severity Medium
Vulnerability Type DoS
CWE CWE-20 Improper Input Validation
Description In cmdq, there is a possible memory corruption due to a missing bounds check. This could lead to local denial of service with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets MT6739, MT6768, MT6771, MT6781, MT6785, MT6833, MT6853, MT6853T, MT6873, MT6877, MT6883, MT6885, MT6889, MT6893, MT8786, MT8789, MT8797
Affected Software Versions Android 12.0, 13.0

CVE CVE-2023-20760
Title Improper input validation in apu
Severity Medium
Vulnerability Type EoP
CWE CWE-20 Improper Input Validation
Description In apu, 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, MT8195
Affected Software Versions Android 12.0, 13.0

CVE CVE-2023-20761
Title Improper input validation in ril
Severity Medium
Vulnerability Type EoP
CWE CWE-20 Improper Input Validation
Description In ril, 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 MT6739, MT6761, MT6762, MT6763, MT6765, MT6768, MT6769, MT6771, MT6779, MT6781, MT6785, MT6789, MT6833, MT6835, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6886, MT6889, MT6891, MT6893, MT6895, MT6983, MT6985, MT8321, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8797
Affected Software Versions Android 12.0, 13.0

CVE CVE-2023-20766
Title Improper input validation in gps
Severity Medium
Vulnerability Type EoP
CWE CWE-20 Improper Input Validation
Description In gps, 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 MT6580, MT6735, MT6739, MT6753, MT6757, MT6761, MT6762, MT6763, MT6765, MT6768, MT6769, MT6771, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6886, MT6891, MT6893, MT6895, MT6983, MT6985, MT8167, MT8168, MT8173, MT8175, MT8185, MT8321, MT8362A, MT8365, MT8385, MT8666, MT8667, MT8675, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8797
Affected Software Versions Android 11.0, 12.0, 13.0

CVE CVE-2023-20767
Title Improper input validation in pqframework
Severity Medium
Vulnerability Type EoP
CWE CWE-20 Improper Input Validation
Description In pqframework, 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, MT6886, MT6895, MT6983, MT6985, MT8167, MT8168, MT8195, MT8673
Affected Software Versions Android 12.0, 13.0

CVE CVE-2023-20768
Title Access of resource using incompatible type ('type confusion') in ion
Severity Medium
Vulnerability Type EoP
CWE CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')
Description In ion, there is a possible out of bounds read due to type confusion. 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, MT6757, MT6757C, MT6757CD, MT6757CH, MT6761, MT6762, MT6763, MT6765, MT6768, MT6769, MT6771, MT6779, MT6781, MT6785, MT6833, MT6853, MT6853T, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8168, MT8195, MT8321, MT8666, MT8675, MT8765, MT8766, MT8768, MT8786, MT8788, MT8791T, MT8797
Affected Software Versions Android 11.0, 12.0

CVE CVE-2023-20771
Title Concurrent execution using shared resource with improper synchronization ('race condition') in display
Severity Medium
Vulnerability Type EoP
CWE CWE-662 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Description In display, there is a possible memory corruption 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 MT6580, MT6739, MT6761, MT6765, MT6768, MT6771, MT6779, MT6785, MT8168, MT8781
Affected Software Versions Android 12.0

CVE CVE-2023-20772
Title Improper authentication in vow
Severity Medium
Vulnerability Type EoP
CWE CWE-287 Improper Authentication
Description In vow, there is a possible escalation of privilege due to a missing permission check. 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, MT6753, MT6761, MT6765, MT6768, MT6771, MT6779, MT6781, MT6785, MT6789, MT6833, MT6835, MT6853, MT6853T, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6886, MT6889, MT6893, MT6895, MT6983, MT6985, MT8781, MT8791, MT8791T, MT8797
Affected Software Versions Android 12.0, 13.0

CVE CVE-2023-20773
Title Improper authentication in vow
Severity Medium
Vulnerability Type EoP
CWE CWE-287 Improper Authentication
Description In vow, there is a possible escalation of privilege due to a missing permission check. 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, MT6753, MT6761, MT6765, MT6768, MT6771, MT6779, MT6781, MT6785, MT6789, MT6833, MT6835, MT6853, MT6853T, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6886, MT6889, MT6893, MT6895, MT6983, MT6985, MT8781, MT8791, MT8791T, MT8797
Affected Software Versions Android 12.0, 13.0

CVE CVE-2023-20774
Title Improper input validation in display
Severity Medium
Vulnerability Type EoP
CWE CWE-20 Improper Input Validation
Description In display, there is a possible out of bounds read 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 MT6789, MT6835, MT6855, MT6886, MT6895, MT6983, MT6985, MT8195, MT8673, MT8781
Affected Software Versions Android 12.0, 13.0

CVE CVE-2023-20775
Title Buffer copy without checking size of input ('classic buffer overflow') in display
Severity Medium
Vulnerability Type EoP
CWE CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Description In display, 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 MT6739, MT6757, MT6757C, MT6757CD, MT6757CH, MT6761, MT6763, MT6765, MT6768, MT6771, MT6779, MT6781, MT6785, MT6789, MT6833, MT6835, MT6853, MT6853T, MT6855, MT6873, MT6877, MT6879, MT6885, MT6886, MT6889, MT6890, MT6893, MT6895, MT6983, MT6985, MT6990, MT8168, MT8183, MT8195, MT8673, MT8781
Affected Software Versions Android 12.0, 13.0 / OpenWrt 21.02 / RDKB 2022Q3

CVE CVE-2023-20689
Title Integer overflow to buffer overflow in wlan
Severity Medium
Vulnerability Type DoS
CWE CWE-680 Integer Overflow to Buffer Overflow
Description In wlan firmware, there is possible system crash due to an integer overflow. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets MT6739, MT8167, MT8321, MT8365, MT8385, MT8666, MT8765, MT8788
Affected Software Versions Android 11.0 / IOT-v23.0 (Yocto 4.0)

CVE CVE-2023-20690
Title Integer overflow to buffer overflow in wlan
Severity Medium
Vulnerability Type DoS
CWE CWE-680 Integer Overflow to Buffer Overflow
Description In wlan firmware, there is possible system crash due to an integer overflow. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets MT6739, MT8167, MT8168, MT8321, MT8365, MT8385, MT8666, MT8765, MT8788
Affected Software Versions Android 11.0, 12.0 / IOT-v23.0 (Yocto 4.0)

CVE CVE-2023-20691
Title Integer overflow to buffer overflow in wlan
Severity Medium
Vulnerability Type DoS
CWE CWE-680 Integer Overflow to Buffer Overflow
Description In wlan firmware, there is possible system crash due to an integer overflow. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets MT6739, MT8167, MT8321, MT8365, MT8385, MT8666, MT8765, MT8788
Affected Software Versions Android 11.0, 12.0 / IOT-v23.0 (Yocto 4.0)

CVE CVE-2023-20692
Title Null pointer dereference in wlan
Severity Medium
Vulnerability Type DoS
CWE CWE-476 NULL Pointer Dereference
Description In wlan firmware, there is possible system crash due to an uncaught exception. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets MT6739, MT8167, MT8168, MT8321, MT8365, MT8385, MT8666, MT8765, MT8788
Affected Software Versions Android 11.0 / IOT-v23.0 (Yocto 4.0)

CVE CVE-2023-20693
Title Null pointer dereference in wlan
Severity Medium
Vulnerability Type DoS
CWE CWE-477 NULL Pointer Dereference
Description In wlan firmware, there is possible system crash due to an uncaught exception. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets MT6739, MT6895, MT6983, MT8167, MT8168, MT8195, MT8321, MT8365, MT8385, MT8666, MT8765, MT8781, MT8788
Affected Software Versions Android 11.0, 12.0 / IOT-v23.0 (Yocto 4.0)

CVE CVE-2022-32666
Title User interface (ui) misrepresentation of critical information in Wi-Fi
Severity Medium
Vulnerability Type DoS
CWE CW3-451 User Interface (UI) Misrepresentation of Critical Information
Description In Wi-Fi, there is a possible low throughput due to misrepresentation of critical information. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets MT7603, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915, MT7916, MT7981, MT7986, MT8365
Affected Software Versions 7.6.6.0 / IOT-v23.0 (Yocto 4.0)

CVE CVE-2023-20748
Title Improper input validation in display
Severity Medium
Vulnerability Type ID
CWE CWE-20 Improper Input Validation
Description In display, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets MT6879, MT6886, MT6895, MT6983, MT6985, MT8673, MT8781
Affected Software Versions Android 12.0, 13.0


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 July 3, 2023 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.