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    January-2022
    Product Security Bulletin

    Published 2022-01-03

    The MediaTek Product Security Bulletin contains details of security vulnerabilities affecting MediaTek Smartphone, Tablet, AIoT, Smart display, Wi-Fi and TV 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, Wi-Fi and TV 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-2021-40148, CVE-2021-35055, CVE-2021-37560, CVE-2021-37561, CVE-2021-37584, CVE-2021-37563, CVE-2021-37566, CVE-2021-37569, CVE-2021-37568, CVE-2021-37583, CVE-2021-37571, CVE-2021-31345, CVE-2021-31346, CVE-2021-31889, CVE-2021-31890
    Medium CVE-2022-20012, CVE-2022-20013, CVE-2022-20014, CVE-2022-20015, CVE-2022-20016, CVE-2022-20018, CVE-2022-20019, CVE-2022-20020, CVE-2022-20021, CVE-2022-20022, CVE-2022-20023, CVE-2021-32467, CVE-2021-32468, CVE-2021-32469, CVE-2021-37562, CVE-2021-37567, CVE-2021-37565, CVE-2021-37564, CVE-2021-37570, CVE-2021-37572, CVE-2021-41788, CVE-2021-41789

    Details

    CVE CVE-2021-40148
    Title Information disclosure in Modem EMM
    Severity High
    Vulnerability Type ID
    CWE CWE-200 Information Disclosure
    Description In Modem EMM, there is a possible information disclosure due to a missing data encryption. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT2731, MT2735, MT3967, MT6297, MT6739, MT6761, MT6762, MT6762D, MT6762M, MT6763, MT6765, MT6765T, MT6767, MT6768, MT6769, MT6769T, MT6769Z, MT6771, MT6779, MT6781, MT6783, MT6785, MT6785T, MT6833, MT6853, MT6855, MT6873, MT6875, MT6875T, MT6877, MT6880, MT6883, MT6885, MT6889, MT6890, MT6891, MT6893, MT8666, MT8675, MT8765, MT8766, MT8768, MT8771, MT8786, MT8788, MT8791, MT8797
    Affected Software Versions Modem L9, LR11, LR12, LR12A, LR13, NR15

    CVE CVE-2021-35055
    Title Out-of-bounds write in wifi driver
    Severity High
    Vulnerability Type EoP
    CWE CWE-787 Out-of-bounds Write
    Description In wifi driver, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege from a proximal attacker, if WPS is used, with no additional execution privileges needed. User interaction is needed for exploitation.
    Affected Chipsets MT7603E, MT7610, MT7612, MT7613, MT7615, MT7620, MT7622, MT7628, MT7629, MT7915
    Affected Software Versions 7.4.0.0

    CVE CVE-2021-37560
    Title Out-of-bounds write in wifi driver
    Severity High
    Vulnerability Type EoP
    CWE CWE-787 Out-of-bounds Write
    Description In wifi driver, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege from a proximal attacker, if WPS is used, with no additional execution privileges needed. User interaction is needed for exploitation.
    Affected Chipsets MT7603E, MT7610, MT7612, MT7613, MT7615, MT7620, MT7622, MT7628, MT7629, MT7915
    Affected Software Versions 7.4.0.0

    CVE CVE-2021-37561
    Title Out-of-bounds write in wifi driver
    Severity High
    Vulnerability Type EoP
    CWE CWE-787 Out-of-bounds Write
    Description In wifi driver, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege from a proximal attacker, if WPS is used, with no additional execution privileges needed. User interaction is needed for exploitation.
    Affected Chipsets MT7603E, MT7610, MT7612, MT7613, MT7615, MT7620, MT7622, MT7628, MT7629, MT7915
    Affected Software Versions 7.4.0.0

    CVE CVE-2021-37584
    Title Out-of-bounds write in wifi driver
    Severity High
    Vulnerability Type EoP
    CWE CWE-787 Out-of-bounds Write
    Description In wifi driver, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege from a proximal attacker, if WPS is used, with no additional execution privileges needed. User interaction is needed for exploitation.
    Affected Chipsets MT7603E, MT7610, MT7612, MT7613, MT7615, MT7620, MT7622, MT7628, MT7629, MT7915
    Affected Software Versions 7.4.0.0

    CVE CVE-2021-37563
    Title Out-of-bounds write in wifi driver
    Severity High
    Vulnerability Type EoP
    CWE CWE-787 Out-of-bounds Write
    Description In wifi driver, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege from a proximal attacker, if WPS is used, with no additional execution privileges needed. User interaction is needed for exploitation.
    Affected Chipsets MT7603E, MT7610, MT7612, MT7613, MT7615, MT7620, MT7622, MT7628, MT7629, MT7915
    Affected Software Versions 7.4.0.0

    CVE CVE-2021-37566
    Title Out-of-bounds write in 1905 daemon
    Severity High
    Vulnerability Type EoP
    CWE CWE-787 Out-of-bounds Write
    Description In 1905 daemon, there is a possible out of bounds write due to a incorrect bounds check. This could lead to remote escalation of privilege from a proximal attacker, if Wi-Fi EasyMesh R2 is used, with no additional execution privileges needed. User interaction is needed for exploitation.
    Affected Chipsets MT7603E, MT7610, MT7613, MT7615, MT7620, MT7622, MT7628, MT7629, MT7915
    Affected Software Versions 2.0.2

    CVE CVE-2021-37569
    Title Out-of-bounds write in 1905 daemon
    Severity High
    Vulnerability Type EoP
    CWE CWE-787 Out-of-bounds Write
    Description In 1905 daemon, there is a possible out of bounds write due to a incorrect bounds check. This could lead to remote escalation of privilege from a proximal attacker, if Wi-Fi EasyMesh R2 is used, with no additional execution privileges needed. User interaction is needed for exploitation.
    Affected Chipsets MT7603E, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915
    Affected Software Versions 2.0.2

    CVE CVE-2021-37568
    Title Out-of-bounds write in 1905 daemon
    Severity High
    Vulnerability Type EoP
    CWE CWE-787 Out-of-bounds Write
    Description In 1905 daemon, there is a possible out of bounds write due to a incorrect bounds check. This could lead to remote escalation of privilege from a proximal attacker, if Wi-Fi EasyMesh R2 is used, with no additional execution privileges needed. User interaction is needed for exploitation.
    Affected Chipsets MT7603E, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915
    Affected Software Versions 2.0.2

    CVE CVE-2021-37583
    Title Out-of-bounds write in 1905 daemon
    Severity High
    Vulnerability Type EoP
    CWE CWE-787 Out-of-bounds Write
    Description In 1905 daemon, there is a possible out of bounds write due to a incorrect bounds check. This could lead to remote escalation of privilege from a proximal attacker, if Wi-Fi EasyMesh R2 is used, with no additional execution privileges needed. User interaction is needed for exploitation.
    Affected Chipsets MT7603E, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915
    Affected Software Versions 2.0.2

    CVE CVE-2021-37571
    Title Out-of-bounds write in 1905 daemon
    Severity High
    Vulnerability Type EoP
    CWE CWE-787 Out-of-bounds Write
    Description In 1905 daemon, there is a possible out of bounds write due to a incorrect bounds check. This could lead to remote escalation of privilege from a proximal attacker, if Wi-Fi EasyMesh R2 is used, with no additional execution privileges needed. User interaction is needed for exploitation.
    Affected Chipsets MT7603E, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915
    Affected Software Versions 2.0.2

    CVE CVE-2021-31345
    Title Improper restriction of operations within the bounds of a memory buffer in Modem
    Severity High
    Vulnerability Type ID
    CWE CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
    Description In Modem UDP protocol integrated from Nucleus NET TCP/IP software, there is a possible out of bounds write due to a missing bounds check. This could lead to remote information disclosure or denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT2735, MT6779, MT6781, MT6783, MT6785, MT6833, MT6853, MT6855, MT6873, MT6875, MT6877, MT6880, MT6883, MT6885, MT6889, MT6890, MT6891, MT6893, MT8771, MT8789, MT8791, MT8797
    Affected Software Versions Modem LR13, NR15

    CVE CVE-2021-31346
    Title Improper restriction of operations within the bounds of a memory buffer in Modem
    Severity High
    Vulnerability Type ID
    CWE CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
    Description In Modem ICMP protocol integrated from Nucleus NET TCP/IP software, there is a possible out of bounds write due to a missing bounds check. This could lead to remote information disclosure or denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT2735, MT6779, MT6781, MT6783, MT6785, MT6833, MT6853, MT6855, MT6873, MT6875, MT6877, MT6880, MT6883, MT6885, MT6889, MT6890, MT6891, MT6893, MT8771, MT8789, MT8791, MT8797
    Affected Software Versions Modem LR13, NR15

    CVE CVE-2021-31889
    Title Improper restriction of operations within the bounds of a memory buffer in Modem
    Severity High
    Vulnerability Type DoS
    CWE CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
    Description In Modem TCP protocol integrated from Nucleus NET TCP/IP software, there is a possible system crash due to an improper input validation. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT2731, MT2735, MT6725, MT6739, MT6761, MT6762, MT6762D, MT6762M, MT6763, MT6765, MT6765T, MT6767, MT6768, MT6769, MT6769T, MT6769Z, MT6771, MT6779, MT6781, MT6783, MT6785, MT6833, MT6853, MT6855, MT6873, MT6875, MT6877, MT6880, MT6883, MT6885, MT6889, MT6890, MT6891, MT6893, MT8765, MT8766, MT8768, MT8771, MT8786, MT8788, MT8789, MT8791, MT8797
    Affected Software Versions Modem LR12A, LR13, NR15

    CVE CVE-2021-31890
    Title Improper restriction of operations within the bounds of a memory buffer in Modem
    Severity High
    Vulnerability Type ID
    CWE CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
    Description In Modem TCP protocol integrated from Nucleus NET TCP/IP software, there is a possible out of bounds write due to a missing bounds check. This could lead to remote information disclosure or denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT2735, MT6779, MT6781, MT6783, MT6785, MT6833, MT6853, MT6855, MT6873, MT6875, MT6877, MT6880, MT6883, MT6885, MT6889, MT6890, MT6891, MT6893, MT8771, MT8789, MT8791, MT8797
    Affected Software Versions Modem LR13, NR15

    CVE CVE-2022-20012
    Title Integer overflow or wraparound in mdp driver
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-190 Integer Overflow or Wraparound
    Description In mdp driver, there is a possible memory corruption due to an integer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT6580, MT6739, MT6750, MT6750S, MT6753, MT6755, MT6757, MT6761, MT6762, MT6765, MT6768, MT6769, MT6771, MT6779, MT6785, MT6833, MT6853, MT6853T, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8127, MT8163, MT8167, MT8168, MT8169, MT8173, MT8183, MT8188, MT8195, MT8321, MT8362A, MT8365, MT8385, MT8765, MT8788
    Affected Software Versions Android 10.0, 11.0, 12.0

    CVE CVE-2022-20013
    Title Time-of-check time-of-use (toctou) race condition in vow driver
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
    Description In vow driver, 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 MT6781, MT6785, MT6833, MT6853, MT6853T, MT6873, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8185, MT8789, MT8791, MT8797
    Affected Software Versions Android 10.0, 11.0

    CVE CVE-2022-20014
    Title Improper input validation in vow driver
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-20 Improper Input Validation
    Description In vow driver, there is a possible memory corruption 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 MT6781, MT6785, MT6833, MT6853, MT6853T, MT6873, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8183, MT8185, MT8385, MT8788, MT8789
    Affected Software Versions Android 10.0, 11.0, 12.0

    CVE CVE-2022-20015
    Title Exposure of sensitive information to an unauthorized actor in kd_camera_hw driver
    Severity Medium
    Vulnerability Type ID
    CWE CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
    Description In kd_camera_hw driver, there is a possible information disclosure due to uninitialized data. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT6739, MT6757, MT6757C, MT6757CD, MT6757CH, MT6761, MT6762, MT6763, MT6765, MT6768, MT6771, MT6779, MT6781, MT6785, MT6833, MT6853, MT6853T, MT6873, MT6877, MT6883, MT6885, MT6889, MT6893, MT8169
    Affected Software Versions Android 10.0, 11.0

    CVE CVE-2022-20016
    Title Improper restriction of operations within the bounds of a memory buffer in vow driver
    Severity Medium
    Vulnerability Type EoP
    CWE CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
    Description In vow driver, 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 MT6781, MT6785, MT6833, MT6853, MT6853T, MT6873, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8185, MT8789, MT8791, MT8797
    Affected Software Versions Android 10.0, 11.0

    CVE CVE-2022-20018
    Title Exposure of sensitive information to an unauthorized actor in seninf driver
    Severity Medium
    Vulnerability Type ID
    CWE CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
    Description In seninf driver, there is a possible information disclosure due to uninitialized data. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT6580, MT6739, 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, MT8167, MT8168, MT8173, MT8362A, MT8365
    Affected Software Versions Android 10.0, 11.0, 12.0

    CVE CVE-2022-20019
    Title Exposure of sensitive information to an unauthorized actor in libMtkOmxGsmDec
    Severity Medium
    Vulnerability Type ID
    CWE CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
    Description In libMtkOmxGsmDec, there is a possible information disclosure due to an incorrect bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT6595, MT6735, MT6737, MT6739, MT6750, MT6750S, MT6753, MT6755, MT6755S, MT6757, MT6757C, MT6757CD, MT6757CH, MT6758, MT6761, MT6762, MT6763, MT6765, MT6768, MT6769, MT6771, MT6779, MT6781, MT6785, MT6795, MT6797, MT6799, MT6833, MT6853, MT6853T, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8768
    Affected Software Versions Android 10.0, 11.0

    CVE CVE-2022-20020
    Title Exposure of sensitive information to an unauthorized actor in libvcodecdrv
    Severity Medium
    Vulnerability Type ID
    CWE CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
    Description In libvcodecdrv, there is a possible information disclosure due to a missing bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT6739, MT6768, MT6779, MT6781, MT6785, MT6833, MT6853, MT6873, MT6877, MT6885, MT6893, MT8167, MT8168, MT8173, MT8185, MT8321, MT8362A, MT8365, MT8385, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8797
    Affected Software Versions Android 11.0

    CVE CVE-2022-20021
    Title Expected behavior violation in Bluetooth
    Severity Medium
    Vulnerability Type DoS
    CWE CWE-440 Expected Behavior Violation
    Description In Bluetooth, there is a possible application crash due to bluetooth does not properly handle the reception of multiple LMP_host_connection_req. This could lead to remote denial of service of bluetooth with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT6580, MT6630, MT6735, MT6737, MT6739, MT6750S, MT6753, MT6755S, MT6757, MT6757C, MT6757CD, MT6757CH, MT6763, MT6771, MT7662T, MT7663, MT7668, MT8163, MT8167, MT8167S, MT8173, MT8183, MT8321, MT8362A, MT8362B, MT8385, MT8765, MT8788
    Affected Software Versions Android 10.0, 11.0

    CVE CVE-2022-20022
    Title Expected behavior violation in Bluetooth
    Severity Medium
    Vulnerability Type DoS
    CWE CWE-440 Expected Behavior Violation
    Description In Bluetooth, there is a possible link disconnection due to bluetooth does not properly handle a connection attempt from a host with the same BD address as the currently connected BT host. This could lead to remote denial of service of bluetooth with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT6580, MT6630, MT6735, MT6737, MT6739, MT6750S, MT6753, MT6755S, MT6757, MT6757C, MT6757CD, MT6757CH, MT6763, MT6771, MT7662T, MT7663, MT7668, MT8163, MT8167, MT8167S, MT8173, MT8183, MT8321, MT8362A, MT8362B, MT8385, MT8765, MT8788
    Affected Software Versions Android 10.0, 11.0

    CVE CVE-2022-20023
    Title Expected behavior violation in Bluetooth
    Severity Medium
    Vulnerability Type DoS
    CWE CWE-440 Expected Behavior Violation
    Description In Bluetooth, there is a possible application crash due to bluetooth flooding a device with LMP_AU_rand packet. This could lead to remote denial of service of bluetooth with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT6580, MT6630, MT6735, MT6737, MT6739, MT6750S, MT6753, MT6755S, MT6757, MT6757C, MT6757CD, MT6757CH, MT6761, MT6762, MT6763, MT6765, MT6768, MT6771, MT6779, MT6785, MT6833, MT6853, MT6853T, MT6873, MT6877, MT6885, MT6889, MT6893, MT7662T, MT7663, MT7668, MT7915, MT7920, MT7921, MT7922, MT8163, MT8167, MT8167S, MT8168, MT8173, MT8175, MT8183, MT8185, MT8195, MT8321, MT8362A, MT8362B, MT8365, MT8385, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8797
    Affected Software Versions Android 10.0, 11.0

    CVE CVE-2021-32467
    Title Out-of-bounds read in wifi driver
    Severity Medium
    Vulnerability Type DoS
    CWE CWE-125 Out-of-bounds Read
    Description In wifi driver, there is a possible out of bounds read due to a missing bounds check. This could lead to remote denial of service from a proximal attacker, if WPS is used, with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT7603E, MT7610, MT7612, MT7613, MT7615, MT7620, MT7622, MT7628, MT7629, MT7915
    Affected Software Versions 7.4.0.0

    CVE CVE-2021-32468
    Title Out-of-bounds read in wifi driver
    Severity Medium
    Vulnerability Type DoS
    CWE CWE-125 Out-of-bounds Read
    Description In wifi driver, there is a possible out of bounds read due to a missing bounds check. This could lead to remote denial of service from a proximal attacker, if WPS is used, with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT7603E, MT7610, MT7612, MT7613, MT7615, MT7620, MT7622, MT7628, MT7629, MT7915
    Affected Software Versions 7.4.0.0

    CVE CVE-2021-32469
    Title Out-of-bounds read in wifi driver
    Severity Medium
    Vulnerability Type DoS
    CWE CWE-125 Out-of-bounds Read
    Description In wifi driver, there is a possible out of bounds read due to a missing bounds check. This could lead to remote denial of service from a proximal attacker, if WPS is used, with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT7603E, MT7610, MT7612, MT7613, MT7615, MT7620, MT7622, MT7628, MT7629, MT7915
    Affected Software Versions 7.4.0.0

    CVE CVE-2021-37562
    Title Out-of-bounds read in wifi driver
    Severity Medium
    Vulnerability Type DoS
    CWE CWE-125 Out-of-bounds Read
    Description In wifi driver, there is a possible out of bounds read due to a missing bounds check. This could lead to remote denial of service from a proximal attacker, if WPS is used, with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT7603E, MT7610, MT7612, MT7613, MT7615, MT7620, MT7622, MT7628, MT7629, MT7915
    Affected Software Versions 7.4.0.0

    CVE CVE-2021-37567
    Title Out-of-bounds read in 1905 daemon
    Severity Medium
    Vulnerability Type DoS
    CWE CWE-125 Out-of-bounds Read
    Description In 1905 daemon, there is a possible out of bounds read due to an incorrect bounds check. This could lead to remote denial of service from a proximal attacker, if Wi-Fi EasyMesh R2 is used, with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT7603E, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915
    Affected Software Versions 2.0.2

    CVE CVE-2021-37565
    Title Out-of-bounds read in 1905 daemon
    Severity Medium
    Vulnerability Type DoS
    CWE CWE-125 Out-of-bounds Read
    Description In 1905 daemon, there is a possible out of bounds read due to an incorrect bounds check. This could lead to remote denial of service from a proximal attacker, if Wi-Fi EasyMesh R2 is used, with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT7603E, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915
    Affected Software Versions 2.0.2

    CVE CVE-2021-37564
    Title Out-of-bounds read in 1905 daemon
    Severity Medium
    Vulnerability Type DoS
    CWE CWE-125 Out-of-bounds Read
    Description In 1905 daemon, there is a possible out of bounds read due to an incorrect bounds check. This could lead to remote denial of service from a proximal attacker, if Wi-Fi EasyMesh R2 is used, with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT7603E, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915
    Affected Software Versions 2.0.2

    CVE CVE-2021-37570
    Title Out-of-bounds read in 1905 daemon
    Severity Medium
    Vulnerability Type DoS
    CWE CWE-125 Out-of-bounds Read
    Description In 1905 daemon, there is a possible out of bounds read due to an incorrect bounds check. This could lead to remote denial of service from a proximal attacker, if Wi-Fi EasyMesh R2 is used, with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT7603E, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915
    Affected Software Versions 2.0.2

    CVE CVE-2021-37572
    Title Missing authorization in 1905 daemon
    Severity Medium
    Vulnerability Type DoS
    CWE CWE-862 Missing Authorization
    Description In 1905 daemon, there is a possible missing authorization due to a missing permission check. This could lead to remote denial of service from a proximal attacker, if attacker can connect to Wi-Fi using EasyMesh R2, with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT7603E, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915
    Affected Software Versions 2.0.2

    CVE CVE-2021-41788
    Title Improper input validation in wifi driver
    Severity Medium
    Vulnerability Type DoS
    CWE CWE-20 Improper Input Validation
    Description In wifi driver, there is a possible system crash due to a missing validation check. This could lead to remote denial of service from a proximal attacker with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT7603E, MT7612, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915
    Affected Software Versions 7.4.0.0

    CVE CVE-2021-41789
    Title Improper input validation in wifi driver
    Severity Medium
    Vulnerability Type DoS
    CWE CWE-20 Improper Input Validation
    Description In wifi driver, there is a possible system crash due to a missing validation check. This could lead to remote denial of service from a proximal attacker with no additional execution privileges needed. User interaction is not needed for exploitation.
    Affected Chipsets MT7615, MT7622
    Affected Software Versions 4.4.1.1

    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 January 3, 2022 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.