CVE-2023-20722
NixOS vulnerability analysis and mitigation

Overview

CVE-2023-20722 is a medium severity vulnerability discovered in MediaTek's m4u component. The vulnerability was disclosed in May 2023 and affects MediaTek chipsets MT6765, MT6768, and MT8768 running Android versions 12.0 and 13.0 (MediaTek Bulletin).

Technical details

The vulnerability stems from improper input validation in the m4u component, which could lead to an out-of-bounds write condition. The vulnerability has been assigned a CVSS v3.1 base score of 6.7 MEDIUM (Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H) and is categorized under CWE-20 (Improper Input Validation) (NVD).

Impact

If exploited, this vulnerability could allow an attacker to perform local escalation of privilege with System execution privileges. The exploitation requires no user interaction but does need System execution privileges to be successful (MediaTek Bulletin).

Mitigation and workarounds

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

Additional resources


SourceThis report was generated using AI

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