Hero Banner DESKTOP 1920X677

    April 2023
    Product Security Bulletin

    Published 2023-04-06

    The MediaTek Product Security Bulletin contains details of security vulnerabilities affecting MediaTek Smartphone, Tablet, AIoT, Smart display, Smart platform and OTT 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 and OTT 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-2022-32599, CVE-2023-20652, CVE-2023-20653, CVE-2023-20654, CVE-2023-20655, CVE-2023-20656, CVE-2023-20657
    Medium CVE-2023-20658, CVE-2023-20659, CVE-2023-20660, CVE-2023-20661, CVE-2023-20662, CVE-2023-20663, CVE-2023-20664, CVE-2023-20665, CVE-2023-20666, CVE-2023-20670, CVE-2023-20674, CVE-2023-20675, CVE-2023-20676, CVE-2023-20677, CVE-2023-20679, CVE-2023-20680, CVE-2023-20681, CVE-2023-20682, CVE-2023-20684, CVE-2023-20685, CVE-2023-20686, CVE-2023-20687, CVE-2023-20688

    Details

    CVE CVE-2022-32599
    Title Out-of-bounds write in rpmb
    Severity High
    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, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6889, MT6891, MT6893, MT6895, MT6983, MT8185, MT8321, MT8385, MT8765, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789
    Affected Software Versions Android 10.0, 11.0, 12.0, 13.0

    CVE CVE-2023-20652
    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 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, MT8185, MT8192, MT8321, MT8385, MT8666, MT8667, MT8673, MT8675, MT8765, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8795T, MT8797, MT8798, MT8871, MT8891
    Affected Software Versions Android 10.0, 11.0, 12.0, 13.0

    CVE CVE-2023-20653
    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 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, MT8185, MT8192, MT8321, MT8385, MT8666, MT8667, MT8673, MT8675, MT8765, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8795T, MT8797, MT8798, MT8871, MT8891
    Affected Software Versions Android 10.0, 11.0, 12.0, 13.0

    CVE CVE-2023-20654
    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 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, MT8185, MT8192, MT8321, MT8385, MT8666, MT8667, MT8673, MT8675, MT8765, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8795T, MT8797, MT8798, MT8871, MT8891
    Affected Software Versions Android 10.0, 11.0, 12.0, 13.0

    CVE CVE-2023-20655
    Title Improper input validation in mmsdk
    Severity High
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In mmsdk, there is a possible escalation of privilege due to a parcel format mismatch. This could lead to local code execution with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT2715, MT6580, MT6735, MT6737, MT6739, MT6753, MT6761, MT6765, MT6768, MT6771, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6889, MT6893, MT6895, MT6983, MT8167, MT8167S, MT8168, MT8173, MT8175, MT8185, MT8192, MT8195, MT8321, MT8362A, MT8365, MT8385, MT8395, MT8666, MT8667, MT8673, MT8675, MT8765, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8795T, MT8797, MT8798, MT8871, MT8891
    Affected Software Versions Android 10.0, 11.0, 12.0, 13.0

    CVE CVE-2023-20656
    Title Write-what-where condition in geniezone
    Severity High
    Vulnerability Type EoP
    CWE CWE-123 Write-what-where Condition
    Description In geniezone, 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 MT6765, MT6768, MT6771, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6889, MT6893, MT6895, MT6983, MT8321, MT8385, MT8765, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791T, MT8795T, MT8797, MT8798
    Affected Software Versions Android 10.0, 11.0, 12.0, 13.0

    CVE CVE-2023-20657
    Title Out-of-bounds write in mtee
    Severity High
    Vulnerability Type EoP
    CWE CWE-787 Out-of-bounds Write
    Description In mtee, 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, MT6737, MT6739, MT6753, MT6761, MT6765, MT6768, MT6771, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6889, MT6893, MT6983, MT8321, MT8385, MT8765, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791T, MT8795T, MT8797, MT8798
    Affected Software Versions Android 10.0, 11.0, 12.0, 13.0

    CVE CVE-2023-20658
    Title Improper input validation in isp
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In isp, 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 MT6895, MT6983, MT8188, MT8195, MT8673, MT8795T, MT8798
    Affected Software Versions Android 12.0, 13.0

    CVE CVE-2023-20659
    Title Improper input validation in wlan
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In wlan, 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 MT5221, MT6781, MT6789, MT6833, MT6855, MT6877, MT6879, MT6895, MT6983, MT7663, MT7668, MT7902, MT7921, MT8167S, MT8168, MT8169, MT8175, MT8185, MT8362A, MT8365, MT8385, MT8518, MT8532, MT8675, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791T, MT8797, MT8798
    Affected Software Versions Android 11.0, 12.0, 13.0 / Yocto 3.1, 3.3, 4.0 / Linux-4.19 (for MT5221, MT7663, MT7668, MT7902 and MT7921 chipsets only)

    CVE CVE-2023-20660
    Title Improper input validation in wlan
    Severity Medium
    Vulnerability Type ID
    CWE CWE-20 Improper Input Validation
    Description In wlan, there is a possible out of bounds read due to an integer overflow. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT5221, MT6879, MT6895, MT6983, MT7902, MT7921, MT8167S, MT8168, MT8175, MT8362A, MT8365, MT8385, MT8518, MT8532, MT8696, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791T, MT8795T, MT8797, MT8798
    Affected Software Versions Android 12.0, 13.0 / Yocto 3.1, 3.3, 4.0 / Linux-4.19 (for MT5221, MT7921 and MT7902 chipsets only)

    CVE CVE-2023-20661
    Title Improper input validation in wlan
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In wlan, 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 MT5221, MT6879, MT6895, MT6983, MT7902, MT7921, MT8167S, MT8168, MT8175, MT8362A, MT8365, MT8385, MT8518, MT8532, MT8696, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791T, MT8795T, MT8797, MT8798
    Affected Software Versions Android 12.0, 13.0 / Yocto 3.1, 3.3, 4.0 / Linux-4.19 (for MT5221, MT7921 and MT7902 chipsets only)

    CVE CVE-2023-20662
    Title Improper input validation in wlan
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In wlan, 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 MT5221, MT6879, MT6895, MT6983, MT7902, MT7921, MT8167S, MT8168, MT8175, MT8362A, MT8365, MT8385, MT8518, MT8532, MT8696, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791T, MT8795T, MT8797, MT8798
    Affected Software Versions Android 12.0, 13.0 / Yocto 3.1, 3.3, 4.0 / Linux-4.19 (for MT5221, MT7921 and MT7902 chipsets only)

    CVE CVE-2023-20663
    Title Improper input validation in wlan
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In wlan, 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 MT5221, MT6879, MT6895, MT6983, MT7902, MT7921, MT8167S, MT8168, MT8175, MT8362A, MT8365, MT8385, MT8518, MT8532, MT8696, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791T, MT8795T, MT8797, MT8798
    Affected Software Versions Android 12.0, 13.0 / Yocto 3.1, 3.3, 4.0 / Linux-4.19 (for MT5221, MT7921 and MT7902 chipsets only)

    CVE CVE-2023-20664
    Title Double free in gz
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-415 Double Free
    Description In gz, there is a possible double free due to a use after free. 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, MT6761, MT6765, MT6768, MT6771, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6889, MT6893, MT6895, MT6983, MT8168, MT8185, MT8188, MT8321, MT8362A, MT8365, MT8385, MT8666, MT8673, MT8675, MT8696, MT8765, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8795T, MT8797, MT8798, MT8871, MT8891
    Affected Software Versions Android 10.0, 11.0, 12.0, 13.0

    CVE CVE-2023-20665
    Title Improper input validation in ril
    Severity Medium
    Vulnerability Type ID
    CWE CWE-20 Improper Input Validation
    Description In ril, 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 MT6739, 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, MT8321, MT8365, MT8765, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791T, MT8795T, MT8797, MT8798
    Affected Software Versions Android 12.0, 13.0

    CVE CVE-2023-20666
    Title Improper input validation in display drm
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In display drm, 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 MT6789, MT6855, MT6895, MT6983, MT8188, MT8195, MT8365, MT8781, MT8795T, MT8798
    Affected Software Versions Android 12.0, 13.0

    CVE CVE-2023-20670
    Title Improper input validation in audio
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In audio, 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 MT2715, MT6580, MT6739, MT6761, MT6765, MT6768, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6889, MT6893, MT6895, MT6983, MT8167, MT8188, MT8195, MT8321, MT8365, MT8385, MT8675, MT8696, MT8765, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791, MT8795T, MT8797, MT8798, MT8871, MT8891
    Affected Software Versions Android 12.0, 13.0

    CVE CVE-2023-20674
    Title Improper input validation in wlan
    Severity Medium
    Vulnerability Type ID
    CWE CWE-20 Improper Input Validation
    Description In wlan, 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 MT5221, MT6781, MT6789, MT6833, MT6855, MT6877, MT6879, MT6895, MT6983, MT7663, MT7668, MT7902, MT7921, MT8167S, MT8168, MT8169, MT8175, MT8185, MT8362A, MT8365, MT8385, MT8518, MT8532, MT8675, MT8695, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791T, MT8797, MT8798
    Affected Software Versions Android 11.0, 12.0, 13.0 / Yocto 3.1, 3.3, 4.0 / Linux-4.19 (for MT5221, MT7663, MT7668, MT7902 and MT7921 chipsets only)

    CVE CVE-2023-20675
    Title Improper input validation in wlan
    Severity Medium
    Vulnerability Type ID
    CWE CWE-20 Improper Input Validation
    Description In wlan, 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 MT5221, MT6781, MT6789, MT6833, MT6855, MT6877, MT6879, MT6895, MT6983, MT7663, MT7668, MT7902, MT7921, MT8167S, MT8168, MT8169, MT8175, MT8185, MT8362A, MT8365, MT8385, MT8518, MT8532, MT8675, MT8695, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791T, MT8797, MT8798
    Affected Software Versions Android 11.0, 12.0, 13.0 / Yocto 3.1, 3.3, 4.0 / Linux-4.19 (for MT5221, MT7663, MT7668, MT7902 and MT7921 chipsets only)

    CVE CVE-2023-20676
    Title Improper input validation in wlan
    Severity Medium
    Vulnerability Type ID
    CWE CWE-20 Improper Input Validation
    Description In wlan, 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 MT5221, MT6781, MT6789, MT6833, MT6855, MT6877, MT6879, MT6895, MT6983, MT7663, MT7668, MT7902, MT7921, MT8167S, MT8168, MT8169, MT8175, MT8185, MT8362A, MT8365, MT8385, MT8518, MT8532, MT8675, MT8695, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791T, MT8797, MT8798
    Affected Software Versions Android 11.0, 12.0, 13.0 / Yocto 3.1, 3.3, 4.0 / Linux-4.19 (for MT5221, MT7663, MT7668, MT7902 and MT7921 chipsets only)

    CVE CVE-2023-20677
    Title Improper input validation in wlan
    Severity Medium
    Vulnerability Type ID
    CWE CWE-20 Improper Input Validation
    Description In wlan, 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 MT5221, MT6781, MT6789, MT6833, MT6855, MT6877, MT6879, MT6895, MT6983, MT7663, MT7668, MT7902, MT7921, MT8167S, MT8168, MT8169, MT8175, MT8185, MT8362A, MT8365, MT8385, MT8518, MT8532, MT8675, MT8695, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791T, MT8797, MT8798
    Affected Software Versions Android 11.0, 12.0, 13.0 / Yocto 3.1, 3.3, 4.0 / Linux-4.19 (for MT5221, MT7663, MT7668, MT7902 and MT7921 chipsets only)

    CVE CVE-2023-20679
    Title Improper input validation in wlan
    Severity Medium
    Vulnerability Type ID
    CWE CWE-20 Improper Input Validation
    Description In wlan, 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 MT5221, MT6781, MT6789, MT6833, MT6855, MT6877, MT6879, MT6895, MT6983, MT7663, MT7668, MT7902, MT7921, MT8167S, MT8168, MT8169, MT8175, MT8185, MT8362A, MT8365, MT8385, MT8518, MT8532, MT8675, MT8695, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791T, MT8797, MT8798
    Affected Software Versions Android 11.0, 12.0, 13.0 / Yocto 3.1, 3.3, 4.0 / Linux-4.19 (for MT5221, MT7663, MT7668, MT7902 and MT7921 chipsets only)

    CVE CVE-2023-20680
    Title Improper input validation in adsp
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In adsp, 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 MT6779, MT6781, MT6785, MT6833, MT6853, MT6873, MT6877, MT6879, MT6885, MT6893, MT6895, MT6983, MT8365, MT8695, MT8771, MT8781, MT8791, MT8791T, MT8795T, MT8797, MT8798
    Affected Software Versions Android 11.0, 12.0, 13.0

    CVE CVE-2023-20681
    Title Improper input validation in adsp
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In adsp, 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 MT6886, MT6895, MT6983, MT6985, MT8365, MT8771, MT8781, MT8781WIFI, MT8791, MT8791T, MT8791WIFI, MT8795T, MT8797, MT8797WIFI, MT8798
    Affected Software Versions Android 12.0, 13.0

    CVE CVE-2023-20682
    Title Improper input validation in wlan
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In wlan, 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 MT5221, MT6580, MT6735, MT6765, MT6768, MT6771, MT6779, MT6785, MT6833, MT6853, MT6873, MT6877, MT6885, MT6983, MT7663, MT7668, MT7902, MT7921, MT7933, MT8167S, MT8168, MT8169, MT8175, MT8185, MT8362A, MT8365, MT8385, MT8518, MT8532, MT8675, MT8695, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791T, MT8797, MT8798
    Affected Software Versions Android 11.0, 12.0, 13.0 / Yocto 3.1, 3.3, 4.0 / Linux-4.19 (for MT5221, MT7663, MT7668, MT7902 and MT7921 chipsets only)

    CVE CVE-2023-20684
    Title Concurrent execution using shared resource with improper synchronization ('race condition') in vdec
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-662 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
    Description In vdec, 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, MT6855, MT6879, MT6895, MT6983, MT8673, MT8781, MT8795T, MT8798, MT8891
    Affected Software Versions Android 12.0, 13.0

    CVE CVE-2023-20685
    Title Concurrent execution using shared resource with improper synchronization ('race condition') in vdec
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-662 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
    Description In vdec, 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, MT6855, MT6879, MT6895, MT6983, MT8673, MT8781, MT8795T, MT8798, MT8891
    Affected Software Versions Android 12.0, 13.0

    CVE CVE-2023-20686
    Title Improper synchronization in display drm
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-662 Improper Synchronization
    Description In display drm, there is a possible double 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, MT8781
    Affected Software Versions Android 12.0, 13.0

    CVE CVE-2023-20687
    Title Improper synchronization in display drm
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-662 Improper Synchronization
    Description In display drm, there is a possible double 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, MT8781
    Affected Software Versions Android 12.0, 13.0

    CVE CVE-2023-20688
    Title Active debug code in power
    Severity Medium
    Vulnerability Type ID
    CWE CWE-489 Active Debug Code
    Description In power, 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 MT2715, 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, MT8169, MT8173, MT8175, MT8183, MT8185, MT8188, MT8192, MT8195, MT8321, MT8362A, MT8365, MT8385, MT8390, MT8395, MT8666, MT8673, MT8675, MT8696, MT8765, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8795T, MT8797, MT8798, MT8891
    Affected Software Versions Android 11.0, 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 April 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.