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    January 2023
    Product Security Bulletin

    Published 2023-01-03

    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).
    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-2022-32635, CVE-2022-32636, CVE-2022-32637
    Medium CVE-2022-32638, CVE-2022-32639, CVE-2022-32640, CVE-2022-32641, CVE-2022-32644, CVE-2022-32645, CVE-2022-32646, CVE-2022-32647, CVE-2022-32648, CVE-2022-32649, CVE-2022-32650, CVE-2022-32651, CVE-2022-32652, CVE-2022-32653, CVE-2022-32623, CVE-2022-32657, CVE-2022-32658, CVE-2022-32659, CVE-2022-32664, CVE-2022-32665

    Details

    CVE CVE-2022-32635
    Title Improper input validation in gps
    Severity High
    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 no additional 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, MT6891, MT6893, MT6895, MT6983, MT8167, MT8168, MT8173, MT8185, MT8321, MT8362A, MT8365, MT8385, MT8666, MT8667, MT8675, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8797
    Affected Software Versions Android 10.0, 11.0, 12.0, 13.0

    CVE CVE-2022-32636
    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, 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 10.0, 11.0, 12.0, 13.0

    CVE CVE-2022-32637
    Title Improper input validation in hevc decoder
    Severity High
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In hevc decoder, 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 MT6781, MT6785, MT6833, MT6853, MT6853T, MT6873, MT6883, MT6885, MT6889, MT8185, MT8789
    Affected Software Versions Android 10.0, 11.0

    CVE CVE-2022-32638
    Title Time-of-check time-of-use (toctou) race condition in isp
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
    Description In isp, there is a possible out of bounds write 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 MT6781, MT6833, MT6853, MT6855, MT6873, MT6877, MT6885, MT6893, MT8167, MT8167S, MT8168, MT8173, MT8175, MT8185, MT8321, MT8362A, MT8365, MT8385, MT8666, MT8675, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8797
    Affected Software Versions Android 11.0, 12.0, 13.0

    CVE CVE-2022-32639
    Title Exposure of sensitive information to an unauthorized actor in watchdog
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
    Description In watchdog, 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 MT6739, MT6768, MT6771, MT6781, MT6785, MT6833, MT6853, MT6873, MT6877, MT8167, MT8167S, MT8362A, MT8385, MT8518S, MT8532, MT8765, MT8786, MT8791
    Affected Software Versions Android 11.0, 12.0

    CVE CVE-2022-32640
    Title Improper input validation in meta wifi
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In meta wifi, 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, 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, MT8167, MT8168, MT8173, MT8185, MT8321, MT8362A, MT8365, MT8385, MT8666, MT8675, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8797
    Affected Software Versions Android 11.0, 12.0

    CVE CVE-2022-32641
    Title Improper input validation in meta wifi
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In meta wifi, 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 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, MT8167, MT8168, MT8173, MT8185, MT8321, MT8362A, MT8365, MT8385, MT8666, MT8675, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8797
    Affected Software Versions Android 11.0, 12.0, 13.0

    CVE CVE-2022-32644
    Title Improper synchronization in vow
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-662 Improper Synchronization
    Description In vow, 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 MT6789, MT6833, MT6853, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6891, MT6893, MT6895, MT6983, MT8781, MT8791, MT8791T, MT8797
    Affected Software Versions Android 11.0, 12.0, 13.0

    CVE CVE-2022-32645
    Title Improper synchronization in vow
    Severity Medium
    Vulnerability Type ID
    CWE CWE-662 Improper Synchronization
    Description In vow, there is a possible information disclosure due to a race condition. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT6789, MT6833, MT6853, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6891, MT6893, MT6895, MT6983, MT8781, MT8791, MT8791T, MT8797
    Affected Software Versions Android 11.0, 12.0, 13.0

    CVE CVE-2022-32646
    Title Improper input validation in gpu drm
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In gpu drm, there is a possible stack overflow 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 MT6761, MT6765, MT6768, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6889, MT6893, MT6895, MT6983, MT8675, MT8766, MT8781, MT8791
    Affected Software Versions Android 11.0, 12.0, 13.0

    CVE CVE-2022-32647
    Title Improper input validation in ccu
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In ccu, there is a possible out of bounds write due to improper input validation. 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, 13.0

    CVE CVE-2022-32648
    Title Improper synchronization in disp
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-662 Improper Synchronization
    Description In disp, 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 MT6735, MT6737, MT6739, MT6753, MT6757, MT6761, MT6763, MT6765, MT6768, MT6771, MT6779, MT6785, MT6789
    Affected Software Versions Android 11.0, 12.0

    CVE CVE-2022-32649
    Title Incorrect calculation of buffer size in jpeg
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-131 Incorrect Calculation of Buffer Size
    Description In jpeg, there is a possible use after free 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 MT6895, MT6983
    Affected Software Versions Android 12.0

    CVE CVE-2022-32650
    Title Incorrect calculation of buffer size in isp
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-131 Incorrect Calculation of Buffer Size
    Description In mtk-isp, there is a possible use after free 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 MT6879, MT6895, MT6983
    Affected Software Versions Android 12.0, 13.0

    CVE CVE-2022-32651
    Title Incorrect calculation of buffer size in mtk-aie
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-131 Incorrect Calculation of Buffer Size
    Description In mtk-aie, there is a possible use after free 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 MT6879, MT6983
    Affected Software Versions Android 12.0

    CVE CVE-2022-32652
    Title Improper input validation in isp
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In mtk-aie, there is a possible use after free 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 MT6833, MT6853, MT6877, MT6893, MT8791
    Affected Software Versions Android 11.0, 12.0, 13.0

    CVE CVE-2022-32653
    Title Improper input validation in isp
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In mtk-aie, there is a possible use after free 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 MT6789, MT6855, MT6879, MT6983, MT8781
    Affected Software Versions Android 12.0, 13.0

    CVE CVE-2022-32623
    Title Improper check or handling of exceptional conditions in mdp
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-703 Improper Check or Handling of Exceptional Conditions
    Description In mdp, there is a possible out of bounds write 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, MT8168, MT8365, MT8781
    Affected Software Versions Android 12.0

    CVE CVE-2022-32657
    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 MT7603, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915, MT7916, MT7981, MT7986
    Affected Software Versions 7.6.6.0

    CVE CVE-2022-32658
    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 MT7603, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915, MT7916, MT7981, MT7986
    Affected Software Versions 7.6.6.0

    CVE CVE-2022-32659
    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 MT7603, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915, MT7916, MT7981, MT7986, MT8518S, MT8532
    Affected Software Versions 7.6.6.0, and Yocto 3.1, 3.3

    CVE CVE-2022-32664
    Title Improper input validation in Config Manager
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In Config Manager, there is a possible command injection due to improper input validation. This could lead to remote escalation of privilege with User execution privileges needed. User interaction is needed for exploitation.
    Affected Chipsets EN7516, EN7528, EN7529, EN7561, EN7562, EN7580
    Affected Software Versions Linux SDK versions less than TLM-7.3.293.0

    CVE CVE-2022-32665
    Title Improper input validation in Boa
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In Boa, there is a possible command injection due to improper input validation. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets EN7528, EN7580
    Affected Software Versions Linux SDK versions less than TLB7.3.258.100-P1-1555

    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 January 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.

    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.