The MediaTek Product Security Bulletin contains details of security vulnerabilities affecting MediaTek Smartphone, Tablet, AIoT, Smart display, Smart platform, OTT and Wi-Fi 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 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-2022-26471, CVE-2022-26472 |
| Medium | CVE-2022-26452, CVE-2022-26473, CVE-2022-26474, CVE-2022-26475, CVE-2022-32589, CVE-2022-32590, CVE-2022-32591, CVE-2022-32592, CVE-2022-32593 |
Details
| CVE | CVE-2022-26471 |
|---|---|
| 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 escalation of privilege 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 | MT6580, MT6739, MT6761, MT6765, MT6768, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6889, MT6893, MT6895, MT6983, MT8321, MT8385, MT8666, MT8675, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8797 |
| Affected Software Versions | Android 12.0 |
| CVE | CVE-2022-26472 |
|---|---|
| Title | Deserialization of untrusted data in ims |
| Severity | High |
| Vulnerability Type | EoP |
| CWE | CWE-502 Deserialization of Untrusted Data |
| Description | In ims, there is a possible escalation of privilege 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, MT8791, MT8797 |
| Affected Software Versions | Android 10.0, 11.0, 12.0 |
| CVE | CVE-2022-26452 |
|---|---|
| Title | Improper synchronization in isp |
| Severity | Medium |
| Vulnerability Type | EoP |
| CWE | CWE-662 Improper Synchronization |
| Description | In isp, there is a possible use after 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 | MT6879, MT6895, MT6983 |
| Affected Software Versions | Android 12.0 |
| CVE | CVE-2022-26473 |
|---|---|
| Title | Improper synchronization in vdec fmt |
| Severity | Medium |
| Vulnerability Type | EoP |
| CWE | CWE-662 Improper Synchronization |
| Description | In vdec fmt, there is a possible use after 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 | MT6789, MT6855, MT6879, MT6895, MT6983, MT8168, MT8365, MT8695, MT8696, MT8798 |
| Affected Software Versions | Android 12.0 |
| CVE | CVE-2022-26474 |
|---|---|
| Title | Incorrect calculation of buffer size in sensorhub |
| Severity | Medium |
| Vulnerability Type | EoP |
| CWE | CWE-131 Incorrect Calculation of Buffer Size |
| Description | In sensorhub, there is a possible out of bounds write due to an incorrect calculation of buffer size. 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 |
| Affected Software Versions | Android 12.0 |
| CVE | CVE-2022-26475 |
|---|---|
| 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 | MT6761, MT6762, MT6765, MT6768, MT6769, MT6779, MT6781, MT6785, MT6789, MT6853, MT6855, MT6873, MT6875, MT6879, MT6883, MT6885, MT6889, MT6895, MT6983, MT7663, MT7902, MT7921, MT8167S, MT8175, MT8183, MT8185, MT8362A, MT8365, MT8385, MT8512A, MT8518, MT8532, MT8667, MT8695, MT8696, MT8766, MT8768, MT8786, MT8788, MT8789 |
| Affected Software Versions | Android 11.0, 12.0 and Yocto 3.1, 3.3 |
| CVE | CVE-2022-32589 |
|---|---|
| Title | Improper resource shutdown or release in Wi-Fi driver |
| Severity | Medium |
| Vulnerability Type | DoS |
| CWE | CWE-404 Improper Resource Shutdown or Release |
| Description | In Wi-Fi driver, there is a possible way to disconnect Wi-Fi due to an improper resource release. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. |
| Affected Chipsets | MT6761, MT6762, MT6765, MT6768, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6889, MT6891, MT6893, MT6895, MT6983, MT7663, MT7668, MT7902, MT7921, MT8167S, MT8175, MT8183, MT8185, MT8362A, MT8365, MT8385, MT8512A, MT8518, MT8532, MT8667, MT8766, MT8768, MT8786, MT8788, MT8789 |
| Affected Software Versions | Android 11.0, 12.0 and Yocto 3.1, 3.3 |
| CVE | CVE-2022-32590 |
|---|---|
| Title | Improper check or handling of exceptional conditions in wlan |
| Severity | Medium |
| Vulnerability Type | EoP |
| CWE | CWE-703 Improper Check or Handling of Exceptional Conditions |
| Description | In wlan, there is a possible use after free due to an incorrect status check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. |
| Affected Chipsets | MT6761, MT6762, MT6765, MT6768, MT6769, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6889, MT6891, MT6893, MT6895, MT6983, MT7663, MT7668, MT7902, MT7921, MT8167S, MT8175, MT8183, MT8185, MT8362A, MT8365, MT8385, MT8512A, MT8518, MT8532, MT8667, MT8695, MT8696, MT8766, MT8768, MT8786, MT8788, MT8789 |
| Affected Software Versions | Android 11.0, 12.0 and Yocto 3.1, 3.3 |
| CVE | CVE-2022-32591 |
|---|---|
| Title | Improper input validation in ril |
| Severity | Medium |
| Vulnerability Type | DoS |
| CWE | CWE-20 Improper Input Validation |
| Description | In ril, there is a possible system crash due to an incorrect bounds check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. |
| Affected Chipsets | MT6580, MT6739, MT6753, MT6757, MT6761, MT6762, MT6763, MT6765, MT6768, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6885, MT6893, MT6895, MT6983, MT8321, MT8385, MT8666, MT8675, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8797 |
| Affected Software Versions | Android 11.0, 12.0 |
| CVE | CVE-2022-32592 |
|---|---|
| Title | Improper input validation in cpu dvfs |
| Severity | Medium |
| Vulnerability Type | EoP |
| CWE | CWE-20 Improper Input Validation |
| Description | In cpu dvfs, 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 | MT6855, MT6879, MT6895, MT6983, MT8185, MT8321, MT8385, MT8518, MT8666, MT8675, MT8765, MT8768, MT8786, MT8788, MT8789 |
| Affected Software Versions | Android 11.0, 12.0 and Yocto 3.1, 3.3 |
| CVE | CVE-2022-32593 |
|---|---|
| Title | Improper input validation in vowe |
| Severity | Medium |
| Vulnerability Type | EoP |
| CWE | CWE-20 Improper Input Validation |
| Description | In vowe, 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 | MT6983 |
| Affected Software Versions | Android 12.0 |
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 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.
If you want to report a security vulnerability in MediaTek chipsets or products, please go to Report Security Vulnerability page on MediaTek website.