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    October 2023
    Product Security Bulletin

    Published 2023-10-02

    The MediaTek Product Security Bulletin contains details of security vulnerabilities affecting MediaTek Smartphone, Tablet, AIoT, Smart display, Smart platform, OTT, Wi-Fi, TV and Audio 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, Wi-Fi, TV and Audio 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-2023-20819, CVE-2023-32819, CVE-2023-32820
    Medium CVE-2023-32821, CVE-2023-32822, CVE-2023-32823, CVE-2023-32824, CVE-2023-32826, CVE-2023-32827, CVE-2023-32828, CVE-2023-32829, CVE-2023-32830

    Details

    CVE CVE-2023-20819
    Title Out-of-bounds write in CDMA PPP protocol
    Severity High
    Vulnerability Type EoP
    CWE CWE-787 Out-of-bounds Write
    Description In CDMA PPP protocol, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege with no additional execution privilege needed. User interaction is not needed for exploitation.
    Affected Chipsets MT2731, MT6570, MT6580, MT6595, MT6732, MT6735, MT6737, MT6737M, MT6738, MT6739, MT6750, MT6750S, MT6752, MT6753, MT6755, MT6757, MT6758, MT6761, MT6762, MT6762D, MT6762M, MT6763, MT6765, MT6765T, MT6767, MT6768, MT6769, MT6769T, MT6769Z, MT6771, MT6775, MT6779, MT6781, MT6783, MT6785, MT6785T, MT6789, MT6795, MT6797, MT6799, MT6813, MT6815, MT6833, MT6835, MT6853, MT6855, MT6873, MT6875, MT6875T, MT6877, MT6878, MT6879, MT6883, MT6885, MT6886, MT6889, MT6891, MT6893, MT6895, MT6895T, MT6896, MT6897, MT6983, MT6985, MT6989, MT8666, MT8666A, MT8667, MT8673, MT8675, MT8765, MT8766, MT8766Z, MT8768, MT8768A, MT8768B, MT8768T, MT8768Z, MT8781, MT8786, MT8788, MT8788T, MT8788X, MT8788Z, MT8791, MT8791T, MT8797, MT8798
    Affected Software Versions Modem LR11, LR12A, LR13, NR15, NR16, NR17

    CVE CVE-2023-32819
    Title Exposure of sensitive information to an unauthorized actor in display
    Severity High
    Vulnerability Type ID
    CWE CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
    Description In display, there is a possible information disclosure 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 MT6765, MT6768, MT6833, MT6879, MT6883, MT6885, MT6889, MT6893, MT6983, MT6985, MT8188, MT8195, MT8797, MT8798
    Affected Software Versions Android 12.0, 13.0

    CVE CVE-2023-32820
    Title Denial of service in wlan firmware
    Severity High
    Vulnerability Type DoS
    CWE CWE-400 Denial of Service
    Description In wlan firmware, there is a possible firmware assertion due to improper input handling. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT5221, MT6781, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6886, MT6889, MT6891, MT6893, MT6895, MT6983, MT6985, MT7663, MT7668, MT7902, MT7921, MT8168, MT8365, MT8518S, MT8532, MT8666, MT8673, MT8675, MT8695, MT8766, MT8768, MT8781, MT8786, MT8789, MT8791, MT8797, MT8798
    Affected Software Versions Android 11.0, 12.0, 13.0 / Linux 4.19 / Yocto 3.1, 3.3 / IOT-v23.0

    CVE CVE-2023-32821
    Title Exposure of sensitive information to an unauthorized actor in video
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
    Description In video, there is a possible out of bounds write due to a permissions bypass. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT6761, MT6763, MT6765, MT6768, MT6771, MT6779, MT6785, MT6853, MT6873, MT6885
    Affected Software Versions Android 12.0, 13.0

    CVE CVE-2023-32822
    Title Improper input validation in ftm
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In ftm, 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 MT2713, MT6739, MT6761, MT6762, MT6765, MT6768, MT6769, MT6771, MT6779, MT6781, MT6833, MT6835, MT6855, MT6877, MT6879, MT6883, MT6885, MT6886, MT6889, MT6891, MT6893, MT6895, MT6985, MT8167, MT8167S, MT8168, MT8175, MT8188, MT8195, MT8321, MT8362A, MT8365, MT8385, MT8390, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788, MT8789, MT8791, MT8797, MT8798
    Affected Software Versions Android 12.0, 13.0

    CVE CVE-2023-32823
    Title Integer overflow or wraparound in rpmb
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-190 Integer Overflow or Wraparound
    Description In rpmb , there is a possible memory corruption 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, MT6739, MT6761, MT6762, MT6765, MT6768, MT6769, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6889, MT6891, MT6893, MT6895, MT6983, MT6985, MT8666, MT8765, MT8788
    Affected Software Versions Android 12.0, 13.0

    CVE CVE-2023-32824
    Title Double free in rpmb
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-415 Double Free
    Description In rpmb , there is a possible double 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 MT6580, MT6739, MT6761, MT6762, MT6765, MT6768, MT6769, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6889, MT6891, MT6893, MT6895, MT6983, MT6985, MT8666, MT8765, MT8788
    Affected Software Versions Android 12.0, 13.0

    CVE CVE-2023-32826
    Title Out-of-bounds write in camera middleware
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-787 Out-of-bounds Write
    Description In camera middleware, there is a possible out of bounds write due to a missing 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, MT6886, MT6895, MT6983, MT6985, MT6989, MT8167, MT8167S, MT8168, MT8173, MT8175, MT8185, MT8188, MT8195, MT8321, MT8362A, MT8365, MT8385, MT8390, MT8395, MT8666, MT8673, MT8675, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8797, MT8798
    Affected Software Versions Android 12.0, 13.0

    CVE CVE-2023-32827
    Title Out-of-bounds write in camera middleware
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-787 Out-of-bounds Write
    Description In camera middleware, there is a possible out of bounds write due to a missing 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, MT6886, MT6895, MT6983, MT6985, MT6989, MT8167, MT8167S, MT8168, MT8173, MT8175, MT8185, MT8188, MT8195, MT8321, MT8362A, MT8365, MT8385, MT8390, MT8395, MT8666, MT8673, MT8675, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8797, MT8798
    Affected Software Versions Android 12.0, 13.0

    CVE CVE-2023-32828
    Title Integer overflow or wraparound in vpu
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-190 Integer Overflow or Wraparound
    Description In vpu, 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 MT6771, MT6779, MT6785, MT6853, MT6853T, MT6873, MT6877, MT6885, MT6891, MT6893, MT8183, MT8188, MT8195, MT8390, MT8395
    Affected Software Versions Android 12.0 / IOT-v23.0

    CVE CVE-2023-32829
    Title Out-of-bounds write in apusys
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-787 Out-of-bounds Write
    Description In apusys, 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 MT6879, MT6886, MT6891, MT6895, MT6896, MT6983, MT6985, MT8137, MT8139, MT8188, MT8195, MT8195Z, MT8390, MT8395
    Affected Software Versions Android 12.0, 13.0 / Yocto 3.1, 3.3, 4.0 / IOT-v23.0

    CVE CVE-2023-32830
    Title Out-of-bounds write in TVAPI
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-787 Out-of-bounds Write
    Description In TVAPI, 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 MT5527, MT5583, MT5598, MT5599, MT5670, MT5680, MT5691, MT5695, MT5806, MT5813, MT5815, MT5816, MT5833, MT5835, MT5895, MT9010, MT9011, MT9012, MT9016, MT9020, MT9021, MT9022, MT9215, MT9216, MT9221, MT9222, MT9255, MT9256, MT9266, MT9269, MT9285, MT9286, MT9600, MT9602, MT9610, MT9612, MT9613, MT9615, MT9617, MT9629, MT9630, MT9631, MT9632, MT9633, MT9636, MT9638, MT9639, MT9649, MT9650, MT9652, MT9653, MT9660, MT9666, MT9667, MT9669, MT9670, MT9671, MT9675, MT9679, MT9685, MT9686, MT9688, MT9900, MT9901, MT9931, MT9950, MT9969, MT9970, MT9980, MT9981
    Affected Software Versions Android 10.0, 11.0

    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 October 2, 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.