CVE-2023-20808
NixOS vulnerability analysis and mitigation

Overview

CVE-2023-20808 is a medium severity vulnerability discovered in OPTEE that was disclosed in August 2023. The vulnerability affects Android 11.0 systems running on MediaTek chipsets MT9011, MT9022, MT9618, MT9649, and MT9653 (MediaTek Bulletin).

Technical details

The vulnerability is classified as an out-of-bounds write (CWE-787) vulnerability due to a missing bounds check in OPTEE. It has received a CVSS v3.1 base score of 6.7 MEDIUM (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H) (NVD).

Impact

If exploited, this vulnerability could lead to local escalation of privilege with System execution privileges. The vulnerability affects confidentiality, integrity, and availability of the system (MediaTek Bulletin).

Mitigation and workarounds

MediaTek has released security patches for the affected devices and notified device OEMs of the vulnerability at least two months before public disclosure (MediaTek Bulletin).

Additional resources


SourceThis report was generated using AI

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