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Vulnerability DatabaseCVE-2021-0655

CVE-2021-0655: 
NixOS vulnerability analysis and mitigation

Overview

CVE-2021-0655 is a security vulnerability discovered in the mdlactl driver affecting MediaTek chipsets. The vulnerability was disclosed in November 2021 and affects Android versions 10.0 and 11.0. The issue exists in specific MediaTek chipset models including MT6873, MT6875, MT6883, MT6885, MT6889, MT6891, and MT6893 (Vendor Advisory).

Technical details

The vulnerability is classified as a memory corruption issue due to an incorrect bounds check in the mdlactl driver. 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 categorized under CWE-787 (Out-of-bounds Write) (NVD).

Impact

If exploited, this vulnerability could lead to local escalation of privilege with System execution privileges. The vulnerability requires no user interaction for exploitation but does require system-level execution privileges (Vendor Advisory).

Mitigation and workarounds

MediaTek has released security patches to address this vulnerability. Device OEMs were notified of the issue and corresponding security patches at least two months before the public disclosure (Vendor Advisory).

Additional resources

Source: This report was generated using AI

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