November 2022 Product Security Bulletin

Published 2022-11-07
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-2022-32601, CVE-2022-32602
Medium CVE-2022-26446, CVE-2022-21778, CVE-2022-32603, CVE-2022-32605, CVE-2022-32607, CVE-2022-32608, CVE-2022-32609, CVE-2022-32610, CVE-2022-32611, CVE-2022-32612, CVE-2022-32613, CVE-2022-32614, CVE-2022-32615, CVE-2022-32616, CVE-2022-32617, CVE-2022-32618


Details

CVE CVE-2022-32601
Title Deserialization of untrusted data in telephony
Severity High
Vulnerability Type EoP
CWE CWE-502 Deserialization of Untrusted Data
Description In telephony, there is a possible permission bypass due to a parcel format mismatch. This could lead to local escalation of privilege with no additional 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, MT8385, MT8666, MT8675, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8795T, MT8797, MT8798
Affected Software Versions Android 10.0, 11.0, 12.0

CVE CVE-2022-32602
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 read 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 MT6833, MT6883, MT6983, MT8183, MT8185, MT8321, MT8385, MT8675, MT8765, MT8766, MT8768, MT8786, MT8789, MT8791, MT8791T, MT8797
Affected Software Versions Android 11.0, 12.0

CVE CVE-2022-26446
Title Reachable assertion in Modem 4G RRC
Severity Medium
Vulnerability Type DoS
CWE CWE-617 Reachable Assertion
Description In Modem 4G RRC, there is a possible system crash due to improper input validation. This could lead to remote denial of service, when concatenating improper SIB12 (CMAS message), with no additional execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets MT2731, MT2735, MT6297, MT6725, MT6739, MT6761, MT6762, MT6762D, MT6762M, MT6763, MT6765, MT6765T, MT6767, MT6768, MT6769, MT6769T, MT6769Z, MT6771, MT6779, MT6781, MT6783, MT6785, MT6785T, MT6789, MT6833, MT6853, MT6855, MT6873, MT6875, MT6877, MT6879, MT6880, MT6883, MT6885, MT6889, MT6890, MT6891, MT6893, MT6895, MT6983, MT8385, MT8666, MT8667, MT8675, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8797
Affected Software Versions Modem LR12A, LR13, NR15, NR16

CVE CVE-2022-21778
Title Improper input validation in vpu
Severity Medium
Vulnerability Type EoP
CWE CWE-20 Improper Input Validation
Description In vpu, there is a possible information disclosure due to an incorrect bounds check. 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, MT8168, MT8175, MT8183, MT8365, MT8385, MT8788
Affected Software Versions Android 10.0, 11.0, 12.0

CVE CVE-2022-32603
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 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, MT6893, MT6895, MT6985, MT8795T, MT8798
Affected Software Versions Android 12.0

CVE CVE-2022-32605
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 an incorrect bounds check. 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

CVE CVE-2022-32607
Title Improper input validation in aee
Severity Medium
Vulnerability Type EoP
CWE CWE-20 Improper Input Validation
Description In aee, there is a possible use after free 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, MT6771, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6889, MT6891, MT6893, MT6895, MT6983, MT8167, MT8167S, MT8168, MT8173, MT8175, MT8362A, MT8365, MT8385, MT8666, MT8675, MT8696, MT8765, MT8766, MT8768, MT8786, MT8788, MT8791, MT8791T, MT8795T, MT8797, MT8871, MT8891
Affected Software Versions Android 11.0, 12.0

CVE CVE-2022-32608
Title Time-of-check time-of-use (toctou) race condition in jpeg
Severity Medium
Vulnerability Type EoP
CWE CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
Description In jpeg, 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 MT6893, MT6895
Affected Software Versions Android 12.0

CVE CVE-2022-32609
Title Improper synchronization in vcu
Severity Medium
Vulnerability Type EoP
CWE CWE-662 Improper Synchronization
Description In vcu, 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 MT6762, MT6768, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6889, MT6891, MT6893, MT6895, MT6983, MT8168, MT8185, MT8365, MT8696, MT8768, MT8786, MT8789, MT8791, MT8797, MT8798
Affected Software Versions Android 11.0, 12.0, 13.0

CVE CVE-2022-32610
Title Improper synchronization in vcu
Severity Medium
Vulnerability Type EoP
CWE CWE-662 Improper Synchronization
Description In vcu, 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 MT6762, MT6768, MT6769, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6889, MT6891, MT6893, MT6895, MT6983, MT8168, MT8185, MT8365, MT8696, MT8768, MT8786, MT8789, MT8791, MT8797, MT8798
Affected Software Versions Android 11.0, 12.0, 13.0

CVE CVE-2022-32611
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 MT6879, MT6895, MT6983
Affected Software Versions Android 11.0, 12.0

CVE CVE-2022-32612
Title Concurrent execution using shared resource with improper synchronization ('race condition') in vcu
Severity Medium
Vulnerability Type EoP
CWE CWE-662 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Description In vcu, 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 MT6762, MT6768, MT6769, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6889, MT6891, MT6893, MT6895, MT6983, MT8168, MT8185, MT8365, MT8696, MT8768, MT8786, MT8789, MT8791, MT8797, MT8798
Affected Software Versions Android 11.0, 12.0, 13.0

CVE CVE-2022-32613
Title Concurrent execution using shared resource with improper synchronization ('race condition') in vcu
Severity Medium
Vulnerability Type EoP
CWE CWE-662 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Description In vcu, 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 MT6762, MT6768, MT6769, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6889, MT6891, MT6893, MT6895, MT6983, MT8168, MT8185, MT8365, MT8696, MT8768, MT8786, MT8789, MT8791, MT8797, MT8798
Affected Software Versions Android 11.0, 12.0, 13.0

CVE CVE-2022-32614
Title Double free in audio
Severity Medium
Vulnerability Type EoP
CWE CWE-415 Double Free
Description In audio, there is a possible memory corruption 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, MT6893, MT6983, MT8168, MT8365, MT8797, MT8798
Affected Software Versions Android 12.0

CVE CVE-2022-32615
Title Improper input validation in ccd
Severity Medium
Vulnerability Type EoP
CWE CWE-20 Improper Input Validation
Description In ccd, there is a possible out of bounds write due to uninitialized data. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets MT6983, MT8871, MT8891
Affected Software Versions Android 12.0

CVE CVE-2022-32616
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 uninitialized data. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets MT6983, MT8871, MT8891
Affected Software Versions Android 12.0

CVE CVE-2022-32617
Title Incorrect calculation of buffer size in typec
Severity Medium
Vulnerability Type EoP
CWE CWE-131 Incorrect Calculation of Buffer Size
Description In typec, there is a possible out of bounds write due to an incorrect calculation of buffer size. This could lead to local escalation of privilege, for an attacker who has physical access to the device, with no additional execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets MT6789, MT6855, MT6895, MT6983, MT8798
Affected Software Versions Android 11.0, 12.0, 13.0

CVE CVE-2022-32618
Title Incorrect calculation of buffer size in typec
Severity Medium
Vulnerability Type EoP
CWE CWE-131 Incorrect Calculation of Buffer Size
Description In typec, there is a possible out of bounds write due to an incorrect calculation of buffer size. This could lead to local escalation of privilege, for an attacker who has physical access to the device, with no additional execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets MT6833, MT6873, MT6893, MT8798
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 November 7, 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.