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Vulnerability DatabaseCVE-2021-25491
CVE-2021-25491:
NixOS vulnerability analysis and mitigation
Overview
A vulnerability (CVE-2021-25491) was discovered in the mfc driver affecting Samsung mobile devices prior to SMR Oct-2021 Release 1. The vulnerability allows memory corruption via NULL-pointer dereference. This issue affects selected Samsung devices running Android versions P(9.0), Q(10.0), and R(11.0) with Exynos chipsets (Samsung Mobile).
Technical details
The vulnerability is classified as CWE-476 (NULL Pointer Dereference) with a Low severity rating. The issue exists in the mfc (Multi-Format Codec) driver implementation where improper validation can lead to NULL-pointer dereference conditions (NVD CNA Status).
Impact
The vulnerability can result in memory corruption when successfully exploited, potentially leading to system instability or crashes in affected devices (Samsung Mobile).
Mitigation and workarounds
Samsung addressed this vulnerability in the October 2021 Security Maintenance Release (SMR). The patch adds proper validation logic to prevent null pointer dereference. Users should update their devices to SMR Oct-2021 Release 1 or later to receive the fix (Samsung Mobile).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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