CVE-2020-0069: Mediatek Multiple Chipsets Insufficient Input Validation Vulnerability

Vulnerability summary

CVE-2020-0069 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in MediaTek Multiple Chipsets. It is known to be exploited: CISA lists it, first on 03-11-2021. EPSS estimates a 1.37% chance of exploitation in the next 30 days, higher than 71.5% of scored vulnerabilities.

Timeline

1. 10-03-2020
   PublishedVulnerability first disclosed.
2. 03-11-2021
   Added to CISA KEVMediatek Multiple Chipsets Insufficient Input Validation Vulnerability
3. 03-05-2022
   CISA remediation dueApply updates per vendor instructions.
4. 21-10-2025
   Last modifiedVulnerability information updated.

Description

In the ioctl handlers of the Mediatek Command Queue driver, there is a possible out of bounds write due to insufficient input sanitization and missing SELinux restrictions. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-147882143References: M-ALPS04356754

• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.