Headline
CVE-2023-20775: July 2023
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. Patch ID: ALPS07978760; Issue ID: ALPS07363410.
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.
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In SettingsHomepageActivity.java, there is a possible way to launch arbitrary activities via Settings due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.