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Vulnerability DatabaseCVE-2025-43966
CVE-2025-43966:
NixOS vulnerability analysis and mitigation
Overview
A NULL pointer dereference vulnerability was identified in libheif versions before 1.19.6, specifically in the ImageItem_iden function within image-items/iden.cc. The vulnerability was assigned CVE-2025-43966 and was disclosed on April 20, 2025 (NVD).
Technical details
The vulnerability is classified as a NULL Pointer Dereference (CWE-476) with a CVSS v3.1 Base Score of 2.9 (LOW). The vulnerability vector string is CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L, indicating local access, high attack complexity, no privileges required, no user interaction needed, unchanged scope, and low availability impact (NVD).
Impact
The vulnerability affects the availability of the system through a NULL pointer dereference, which could potentially lead to application crashes. The impact is considered low due to the local access requirement and high attack complexity (NVD).
Mitigation and workarounds
The vulnerability has been fixed in libheif version 1.19.6. Users are advised to upgrade to this version or later. The fix includes additional NULL pointer checks in the ImageItem_iden function (GitHub Commit).
Additional resources
Source: This report was generated using AI
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