CVE-2024-31316
NixOS vulnerability analysis and mitigation

Overview

CVE-2024-31316 is a vulnerability discovered in Android's AccountManagerService.java component, specifically in the onResult function. The vulnerability was disclosed in July 2024 and affects Android versions 12.0, 12.1, 13.0, and 14.0. The issue stems from a parcel mismatch that could enable arbitrary background activity launches (NVD).

Technical details

The vulnerability exists in the onResult function of AccountManagerService.java where a parcel mismatch can occur. It has been assigned a CVSS v3.1 base score of 7.8 (HIGH) with the vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. The vulnerability requires local access but needs no user interaction for exploitation (NVD).

Impact

This vulnerability could lead to local escalation of privilege with no additional execution privileges needed. The high CVSS score indicates potential severe impacts on system confidentiality, integrity, and availability if exploited (NVD).

Mitigation and workarounds

A patch has been implemented in the Android codebase to add more checkKeyIntent checks to AccountManagerService, specifically adding another verification after Bundle modification (Android Git).

Additional resources


SourceThis report was generated using AI

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