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Vulnerability DatabaseCVE-2021-0927

CVE-2021-0927: 
NixOS vulnerability analysis and mitigation

Overview

In requestChannelBrowsable of TvInputManagerService.java, there is a possible permission bypass vulnerability (CVE-2021-0927) affecting Android versions 8.1, 9, 10, 11, and 12. The vulnerability was disclosed in the November 2021 Android Security Bulletin (Android Bulletin).

Technical details

The vulnerability stems from a logic error in the code of TvInputManagerService.java, specifically in the requestChannelBrowsable function. 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 is classified under CWE-281 (Improper Preservation of Permissions) (NVD Database).

Impact

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

Mitigation and workarounds

The vulnerability was addressed in the November 2021 Android Security Bulletin. Users should update their Android devices to the latest available security patch level to mitigate this vulnerability (Android Bulletin).

Additional resources

Source: This report was generated using AI

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