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Vulnerability DatabaseCVE-2021-40944
CVE-2021-40944:
NixOS vulnerability analysis and mitigation
Overview
In GPAC MP4Box 1.1.0, there is a Null pointer reference vulnerability in the function gffilterpidgetpacket at src/filtercore/filterpid.c:5394. The vulnerability was discovered and reported on September 1, 2021 (GitHub Issue).
Technical details
The vulnerability manifests as a segmentation fault caused by a READ memory access to address 0x000000000000 (null pointer). The issue occurs specifically in the gffilterpidgetpacket function within the filtercore/filterpid.c file at line 5394. The vulnerability was identified using AddressSanitizer which detected the SEGV error during execution (GitHub Issue).
Impact
The null pointer dereference vulnerability can lead to a denial of service condition when processing certain inputs through the GPAC MP4Box utility (Debian Security).
Mitigation and workarounds
The vulnerability has been addressed in subsequent versions of GPAC. For Debian systems, the fix was included in version 1.0.1+dfsg1-4+deb11u2 (Debian Security).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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