CVE-2018-21049
NixOS vulnerability analysis and mitigation

Overview

An issue was discovered on Samsung mobile devices with N(7.x) and O(8.X) (Exynos chipsets) software. There is an arbitrary memory write in a Trustlet because a secure driver allows access to sensitive APIs. The Samsung ID is SVE-2018-12881 (November 2018) (NVD).

Technical details

The vulnerability has been assigned a CVSS v3.1 Base Score of 9.8 CRITICAL with vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. The vulnerability is classified as an Out-of-bounds Write (CWE-787) that affects multiple versions of Android including 7.0, 7.1.0, 7.1.1, 7.1.2, 8.0, and 8.1 running on Exynos chipsets (NVD).

Impact

The vulnerability allows attackers to perform arbitrary memory writes through access to sensitive APIs in the Trustlet secure driver. This could potentially lead to complete system compromise with high impacts on confidentiality, integrity, and availability of the affected devices (NVD).

Mitigation and workarounds

Samsung has addressed this vulnerability through a security update. Users of affected devices should ensure they have installed the latest security patches provided by Samsung (Samsung Mobile Security).

Additional resources


SourceThis report was generated using AI

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