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Vulnerability DatabaseCVE-2022-26473

CVE-2022-26473: 
NixOS vulnerability analysis and mitigation

Overview

CVE-2022-26473 is a medium severity vulnerability discovered in MediaTek's vdec fmt component. The vulnerability was disclosed in October 2022 and affects multiple MediaTek chipsets including MT6789, MT6855, MT6879, MT6895, MT6983, MT8168, MT8365, MT8695, MT8696, and MT8798 running Android 12.0. The issue stems from improper locking mechanisms that could lead to a use-after-free condition (MediaTek Bulletin).

Technical details

The vulnerability is characterized by improper synchronization in the vdec fmt component, which can result in a use-after-free condition. It has been assigned a CVSS v3.1 Base Score of 6.7 (Medium) with the vector string CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. The vulnerability is classified under CWE-667 (Improper Locking) (NVD).

Impact

The vulnerability could lead to local escalation of privilege with System execution privileges needed. The exploitation does not require user interaction, though it does require high privileges to execute (MediaTek Bulletin).

Mitigation and workarounds

MediaTek has addressed this vulnerability and notified device OEMs of the security patches at least two months before publication. The fix is identified by Patch ID: ALPS07342197 and Issue ID: ALPS07342197 (MediaTek Bulletin).

Additional resources

Source: This report was generated using AI

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