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).


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.