CVE-2021-39783
NixOS vulnerability analysis and mitigation

Overview

In rcsservice, there is a possible way to modify TTY mode due to a missing permission check. This vulnerability (CVE-2021-39783) affects Android version 12L. The vulnerability was discovered and reported by Android (associated with Google Inc. or Open Handset Alliance) with Android ID: A-197960597 (Android Advisory).

Technical details

The vulnerability is classified as a privilege escalation issue due to a missing permission check in the rcsservice component. It has been assigned a CVSS v3.1 base score of 7.8 (HIGH) with the following vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. The vulnerability is tracked under CWE-269 (Improper Privilege Management) (NVD).

Impact

If exploited, this vulnerability could lead to local escalation of privilege with no additional execution privileges needed. The attacker could potentially gain elevated access to system resources that should normally be restricted (NVD).

Mitigation and workarounds

The vulnerability has been addressed in Android 12L security updates. Users are advised to update their Android devices to the latest available security patch level (Android Advisory).

Additional resources


SourceThis report was generated using AI

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