CVE-2021-33365
NixOS vulnerability analysis and mitigation

Overview

Memory leak vulnerability (CVE-2021-33365) was discovered in the gfisomgetrootod function in MP4Box component of GPAC 1.0.1. The vulnerability allows attackers to read memory via a crafted file. This issue was initially reported on May 8, 2021, and was later addressed through a patch (GPAC Commit).

Technical details

The vulnerability is classified as a memory leak issue in the gfisomgetrootod function within MP4Box. The CVSS v3.1 base score is 5.5 (MEDIUM), with the vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N. The vulnerability is tracked under CWE-401 (Missing Release of Memory after Effective Lifetime) (NVD).

Impact

The vulnerability allows attackers to read memory through a specially crafted file, potentially leading to information disclosure. The CVSS scoring indicates high confidentiality impact but no impact on integrity or availability (NVD).

Mitigation and workarounds

The vulnerability has been fixed through a patch that properly handles memory cleanup in error conditions. For Debian systems, the fix is included in version 1.0.1+dfsg1-4+deb11u2 of the gpac package (Debian Advisory).

Additional resources


SourceThis report was generated using AI

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