Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2020-19488
CVE-2020-19488:
NixOS vulnerability analysis and mitigation
Overview
An issue was discovered in boxcodeapple.c:119 in Gpac MP4Box 0.8.0, which allows attackers to cause a Denial of Service due to an invalid read on function ilstitemRead (NVD).
Technical details
The vulnerability is a NULL pointer dereference issue in the ilstitemRead function located in boxcodeapple.c. The bug occurs when processing certain MP4 files, specifically when handling 'data' box types at specific positions. The vulnerability has been assigned a CVSS v3.1 base score of 5.5 MEDIUM (Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H) and is classified as CWE-476 (NULL Pointer Dereference) (NVD).
Impact
When exploited, this vulnerability can lead to a Denial of Service condition through an invalid read operation. The impact is limited to availability, with no direct impact on confidentiality or integrity of the system (NVD).
Mitigation and workarounds
The vulnerability has been patched in a commit that adds additional null pointer checks before accessing the pointer. The fix involves modifying the condition to verify that the pointer 'a' is not null before attempting to access its members (GitHub Patch).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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