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Vulnerability DatabaseCVE-2021-39667

CVE-2021-39667: 
NixOS vulnerability analysis and mitigation

Overview

CVE-2021-39667 affects Android versions 10, 11, and 12. The vulnerability exists in the ih264dparsedecodeslice function of ih264dparse_slice.c, where a possible out of bounds write can occur due to a heap buffer overflow. This vulnerability was disclosed in the March 2022 Android Security Bulletin (Android Bulletin).

Technical details

The vulnerability is classified as a heap buffer overflow vulnerability in the ih264dparsedecode_slice function. 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:H/I:N/A:N. The vulnerability requires user interaction for exploitation and can be triggered remotely (NVD).

Impact

If successfully exploited, this vulnerability could lead to remote information disclosure with no additional execution privileges needed. The attack could potentially expose sensitive data to unauthorized parties (NVD).

Mitigation and workarounds

Google has released security patches for this vulnerability in the March 2022 Android Security Bulletin. Users should update their Android devices to the latest available security patch level to protect against this vulnerability (Android Bulletin).

Additional resources

Source: This report was generated using AI

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