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    February 2023
    Product Security Bulletin

    Published 2023-02-06

    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).
    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-2023-20602
    Medium CVE-2023-20604, CVE-2023-20605, CVE-2023-20606, CVE-2023-20607, CVE-2023-20608, CVE-2023-20609, CVE-2023-20610, CVE-2023-20611, CVE-2023-20612, CVE-2023-20613, CVE-2023-20614, CVE-2023-20615, CVE-2023-20616, CVE-2023-20618, CVE-2023-20619, CVE-2022-32642, CVE-2022-32643, CVE-2022-32654, CVE-2022-32655, CVE-2022-32656, CVE-2022-32663

    Details

    CVE CVE-2023-20602
    Title Improper input validation in ged
    Severity High
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In ged, 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 MT6735, MT6737, MT6739, MT6753, MT6757, MT6761, MT6763, MT6765, MT6768, MT6771, MT6779, MT6781, MT6785, MT6833, MT6853, MT6855, MT6873, MT6877, MT6879, MT6885, MT6889, MT6893, MT6895, MT6983
    Affected Software Versions Android 10.0, 11.0, 12.0, 13.0

    CVE CVE-2023-20604
    Title Improper input validation in ged
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In ged, 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 MT6735, MT6737, MT6739, MT6753, MT6757, MT6761, MT6763, MT6765, MT6768, MT6771, MT6779, MT6781, MT6785, MT6833, MT6853, MT6855, MT6873, MT6877, MT6879, MT6885, MT6889, MT6893, MT6895, MT6983, MT8167, MT8362A
    Affected Software Versions Android 11.0, 12.0, 13.0

    CVE CVE-2023-20605
    Title Improper input validation in keyinstall
    Severity Medium
    Vulnerability Type ID
    CWE CWE-20 Improper Input Validation
    Description In keyinstall, 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 MT6580, MT6731, MT6735, MT6737, MT6739, MT6753, MT6757, MT6757C, MT6757CD, MT6757CH, MT6761, MT6762, MT6763, MT6765, MT6768, MT6769, MT6771, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6889, MT6891, MT6893, MT6895, MT6983, MT8185, MT8321, MT8385, MT8666, MT8667, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8797
    Affected Software Versions Android 11.0, 12.0, 13.0

    CVE CVE-2023-20606
    Title Improper input validation in apusys
    Severity Medium
    Vulnerability Type ID
    CWE CWE-20 Improper Input Validation
    Description In apusys, 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, MT6895, MT6983
    Affected Software Versions Android 12.0, 12.1

    CVE CVE-2023-20607
    Title Improper synchronization in ccu
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-662 Improper Synchronization
    Description In ccu, 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 MT6765, MT6768, MT8786
    Affected Software Versions Android 11.0, 12.0

    CVE CVE-2023-20608
    Title Improper synchronization in display drm
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-662 Improper Synchronization
    Description In display drm, 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 MT6761, MT6765, MT6768, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6889, MT6893, MT6895, MT6983, MT8168, MT8365, MT8675
    Affected Software Versions Android 11.0, 12.0, 13.0

    CVE CVE-2023-20609
    Title Out-of-bounds read in ccu
    Severity Medium
    Vulnerability Type ID
    CWE CWE-125 Out-of-bounds Read
    Description In ccu, there is a possible out of bounds read due to a logic error. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT6833, MT6853, MT6873, MT6877, MT6885, MT6893, MT8768, MT8786, MT8791, MT8797
    Affected Software Versions Android 11.0, 12.0, 13.0

    CVE CVE-2023-20610
    Title Improper synchronization in display drm
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-662 Improper Synchronization
    Description In display drm, 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 MT6761, MT6765, MT6768, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6889, MT6893, MT6895, MT6983, MT8168, MT8365, MT8675
    Affected Software Versions Android 11.0, 12.0, 13.0

    CVE CVE-2023-20611
    Title Improper synchronization in gpu
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-662 Improper Synchronization
    Description In gpu, 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 MT6580, MT6731, MT6735, MT6737, MT6739, MT6753, MT6757, MT6757C, MT6757CD, MT6757CH, MT6761, MT6762, MT6763, MT6765, MT6768, MT6769, MT6771, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6889, MT6891, MT6893, MT6895, MT6983, MT8168, MT8365
    Affected Software Versions Android 12.0, 13.0

    CVE CVE-2023-20612
    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, MT6765, MT6768, MT6769, MT6771, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6889, MT6891, MT6893, MT6895, MT6983, MT8321, MT8385, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8797
    Affected Software Versions Android 11.0, 12.0, 13.0

    CVE CVE-2023-20613
    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, MT6765, MT6768, MT6769, MT6771, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6889, MT6891, MT6893, MT6895, MT6983, MT8321, MT8385, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8797
    Affected Software Versions Android 11.0, 12.0, 13.0

    CVE CVE-2023-20614
    Title Out-of-bounds write in ril
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-787 Out-of-bounds Write
    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, MT6765, MT6768, MT6769, MT6771, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6889, MT6891, MT6893, MT6895, MT6983, MT8321, MT8385, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8797
    Affected Software Versions Android 11.0, 12.0, 13.0

    CVE CVE-2023-20615
    Title Out-of-bounds write in ril
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-787 Out-of-bounds Write
    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, MT6765, MT6768, MT6769, MT6771, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6889, MT6891, MT6893, MT6895, MT6983, MT8321, MT8385, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8797
    Affected Software Versions Android 11.0, 12.0, 13.0

    CVE CVE-2023-20616
    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, MT8183, MT8321, MT8365, MT8385, MT8666, MT8675, MT8765, MT8766, MT8768, MT8786, MT8788, MT8791T, MT8797
    Affected Software Versions Android 11.0, 12.0

    CVE CVE-2023-20618
    Title Out-of-bounds read in vcu
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-125 Out-of-bounds Read
    Description In vcu, there is a possible memory corruption 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 MT6761, MT6762, MT6768, MT6769, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8185, MT8786, MT8789, MT8791, MT8797
    Affected Software Versions Android 11.0, 12.0, 13.0

    CVE CVE-2023-20619
    Title Use after free in vcu
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-416 Use After Free
    Description In vcu, there is a possible memory corruption 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 MT6761, MT6762, MT6768, MT6769, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8185, MT8786, MT8789, MT8791, MT8797
    Affected Software Versions Android 11.0, 12.0, 13.0

    CVE CVE-2022-32642
    Title Improper synchronization in ccd
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-662 Improper Synchronization
    Description In ccd, 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 MT6879, MT6895, MT6983
    Affected Software Versions Android 12.0

    CVE CVE-2022-32643
    Title Improper synchronization in ccd
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-662 Improper Synchronization
    Description In ccd, 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-2022-32654
    Title Improper input validation in Wi-Fi driver
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In Wi-Fi driver, there is a possible undefined behavior 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 MT5221, MT7603, MT7613, MT7615, MT7622, MT7628, MT7629, MT7663, MT7668, MT7682, MT7686, MT7687, MT7697, MT7902, MT7915, MT7916, MT7921, MT7933, MT7981, MT7986, MT8167S, MT8175, MT8362A, MT8365, MT8385, MT8518S, MT8532, MT8695, MT8696, MT8788
    Affected Software Versions 7.6.6.0

    CVE CVE-2022-32655
    Title Improper input validation in Wi-Fi driver
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In Wi-Fi driver, there is a possible undefined behavior 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 MT5221, MT7603, MT7613, MT7615, MT7622, MT7628, MT7629, MT7663, MT7668, MT7682, MT7686, MT7687, MT7697, MT7902, MT7915, MT7916, MT7921, MT7933, MT7981, MT7986, MT8167S, MT8175, MT8362A, MT8365, MT8385, MT8518S, MT8532, MT8695, MT8696, MT8788
    Affected Software Versions 7.6.6.0

    CVE CVE-2022-32656
    Title Improper input validation in Wi-Fi driver
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In Wi-Fi driver, there is a possible undefined behavior 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 MT5221, MT7603, MT7613, MT7615, MT7622, MT7628, MT7629, MT7663, MT7668, MT7682, MT7686, MT7687, MT7697, MT7902, MT7915, MT7916, MT7921, MT7933, MT7981, MT7986, MT8167S, MT8175, MT8362A, MT8365, MT8385, MT8518S, MT8532, MT8695, MT8696, MT8788
    Affected Software Versions 7.6.6.0

    CVE CVE-2022-32663
    Title Null pointer dereference in Wi-Fi driver
    Severity Medium
    Vulnerability Type DoS
    CWE CWE-476 NULL Pointer Dereference
    Description In Wi-Fi driver, there is a possible system crash due to null pointer dereference. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT5221, MT7603, MT7613, MT7615, MT7622, MT7628, MT7629, MT7668, MT7902, MT7915, MT7916, MT7921, MT7981, MT7986, MT8167S, MT8175, MT8362A, MT8365, MT8385, MT8518S, MT8532, MT8788
    Affected Software Versions 7.6.6.1

    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 February 6, 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.

    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.