CVE-2021-45262
NixOS vulnerability analysis and mitigation

Overview

An invalid free vulnerability exists in gpac 1.1.0 via the gfsgcommand_del function, which causes a segmentation fault and application crash. The vulnerability was discovered in December 2021 and affects the GPAC multimedia framework (NVD, Debian Security).

Technical details

The vulnerability is classified as a Use After Free (CWE-416) issue. It has been assigned a CVSS v3.1 Base Score of 5.5 (Medium) with the vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H. The issue specifically occurs in the gfsgcommand_del function where an invalid pointer is freed, leading to memory corruption (NVD).

Impact

When exploited, this vulnerability results in a segmentation fault and application crash, affecting the stability and availability of the GPAC application. The vulnerability primarily impacts the availability of the system, with no direct impact on confidentiality or integrity (NVD).

Mitigation and workarounds

For Debian's stable distribution (bullseye), this vulnerability has been fixed in version 1.0.1+dfsg1-4+deb11u2. Users are recommended to upgrade their gpac packages to the latest version (Debian Security).

Additional resources


SourceThis report was generated using AI

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