CVE-2021-31261
NixOS vulnerability analysis and mitigation

Overview

The vulnerability CVE-2021-31261 was discovered in GPAC version 1.0.1, specifically affecting the gfhintertrack_new function. The vulnerability was disclosed on April 15, 2021, and allows attackers to read memory through a crafted file using the MP4Box command (CVE Mitre, Debian Tracker).

Technical details

The vulnerability exists in the gfhintertrack_new function of GPAC 1.0.1, where improper memory handling could lead to unauthorized memory access. A fix was implemented through a code modification that properly handles the ESD (Elementary Stream Descriptor) deletion (GPAC Commit).

Impact

The vulnerability allows attackers to read memory contents through specially crafted files when using the MP4Box command, potentially exposing sensitive information (Debian Tracker).

Mitigation and workarounds

A patch has been released to fix the vulnerability, implemented through commit cd3738dea038dbd12e603ad48cd7373ae0440f65. The fix involves proper handling of the ESD descriptor deletion in the gfhintertrack_new function (GPAC Commit).

Additional resources


SourceThis report was generated using AI

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