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Vulnerability DatabaseCVE-2021-39804
CVE-2021-39804:
NixOS vulnerability analysis and mitigation
Overview
CVE-2021-39804 is a vulnerability discovered in Android's HeifDecoderImpl.cpp component, affecting Android versions 11, 12, and 12L. The vulnerability was disclosed in the April 2022 Android Security Bulletin and is identified by Android ID A-215002587. The issue stems from a missing null check during the reinit process (NVD).
Technical details
The vulnerability is classified as a NULL Pointer Dereference (CWE-476) issue. It has been assigned a CVSS v3.1 base score of 6.5 (MEDIUM) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H. The CVSS v2.0 base score is 4.3 (MEDIUM) with the vector (AV:N/AC:M/Au:N/C:N/I:N/A:P) (NVD).
Impact
If exploited, this vulnerability could lead to a remote persistent denial of service specifically in the file picker functionality. The impact is limited to availability, with no direct impact on confidentiality or integrity of the system (NVD).
Mitigation and workarounds
The vulnerability was addressed in the April 2022 Android Security Bulletin. Users should update their Android devices to the latest security patch level to mitigate this vulnerability (Android Security Bulletin).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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