CVE-2020-11758
NixOS vulnerability analysis and mitigation

Overview

An issue was discovered in OpenEXR before 2.4.1 involving an out-of-bounds read in ImfOptimizedPixelReading.h. The vulnerability was assigned CVE-2020-11758 and was discovered by Xingwei Lin of Ant-Financial Light-Year Security Lab (OpenEXR Release, Apple Advisory).

Technical details

The vulnerability is classified as an out-of-bounds read issue in the ImfOptimizedPixelReading.h component of OpenEXR. It has 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 (NVD).

Impact

If exploited, this vulnerability could allow an attacker to cause denial of service or potentially execute arbitrary code when processing malformed EXR image files (Debian Advisory).

Mitigation and workarounds

The vulnerability was fixed in OpenEXR version 2.4.1. Users should upgrade to this version or later. Multiple Linux distributions have released security updates including Ubuntu (USN-4339-1), Debian (DSA-4755), and Fedora (Fedora Advisory).

Additional resources


SourceThis report was generated using AI

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