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Vulnerability DatabaseCVE-2022-40775

CVE-2022-40775: 
NixOS vulnerability analysis and mitigation

Overview

An issue was discovered in Bento4 through 1.6.0-639. A NULL pointer dereference occurs in AP4_StszAtom::WriteFields (NVD). The vulnerability was assigned a CVSS v3.1 base score of 5.5 MEDIUM with vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H (NVD).

Technical details

The vulnerability is a NULL pointer dereference that occurs specifically in the AP4_StszAtom::WriteFields function. The issue is triggered during the execution of mp4decrypt when processing certain MP4 files. The vulnerability manifests as a SEGV error caused by a READ memory access where the address points to the zero page (GitHub Issue).

Impact

The vulnerability can result in a denial of service condition through program crash. When exploited, it causes a segmentation fault due to attempting to read from a NULL pointer address (GitHub Issue).

Mitigation and workarounds

The vulnerability affects Bento4 versions through 1.6.0-639. Users should update to a patched version when available (NVD).

Additional resources

Source: This report was generated using AI

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