CVE-2021-32437
NixOS vulnerability analysis and mitigation

Overview

The vulnerability (CVE-2021-32437) was discovered in GPAC version 1.0.1, specifically affecting the gfhinterfinalize function. The issue was disclosed on May 7, 2021, and involves a NULL pointer dereference vulnerability that can be triggered via a crafted file using the MP4Box command (CVE Mitre).

Technical details

The vulnerability is classified with a CVSS 3.1 base score of 5.5 (Medium severity). The attack vector is Local, with low attack complexity, requiring no privileges but user interaction. The scope is unchanged, with no impact on confidentiality or integrity, but high impact on availability (Ubuntu Security).

Impact

When successfully exploited, the vulnerability allows attackers to cause a denial of service condition through a NULL pointer dereference, potentially causing the application to crash (Debian Security).

Mitigation and workarounds

The vulnerability has been patched in GPAC version 2.0.0. A fix was implemented through a commit that adds a NULL pointer check before accessing the sample data in the gfhinterfinalize function (GitHub Commit).

Additional resources


SourceThis report was generated using AI

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