Linux Distros Unpatched Vulnerability : CVE-2021-3941

medium Nessus Plugin ID 224014

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

- In ImfChromaticities.cpp routine RGBtoXYZ(), there are some division operations such as `float Z = (1 - chroma.white.x - chroma.white.y) * Y / chroma.white.y;` and `chroma.green.y * (X + Z))) / d;` but the divisor is not checked for a 0 value. A specially crafted file could trigger a divide-by-zero condition which could affect the availability of programs linked with OpenEXR. (CVE-2021-3941)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

Plugin Details

Severity: Medium

ID: 224014

File Name: unpatched_CVE_2021_3941.nasl

Version: 1.4

Type: local

Agent: unix

Family: Misc.

Published: 3/5/2025

Updated: 9/4/2025

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2021-3941

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:mingw32-openexr, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:centos:centos:mingw64-openexr, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:centos:centos:mingw-openexr, p-cpe:/a:redhat:enterprise_linux:openexr, p-cpe:/a:centos:centos:openexr-devel, p-cpe:/a:centos:centos:openexr, p-cpe:/a:canonical:ubuntu_linux:openexr, p-cpe:/a:redhat:enterprise_linux:mingw32-openexr, p-cpe:/a:redhat:enterprise_linux:openexr-libs, p-cpe:/a:centos:centos:openexr-libs, p-cpe:/a:redhat:enterprise_linux:mingw64-openexr, p-cpe:/a:redhat:enterprise_linux:mingw-openexr, p-cpe:/a:redhat:enterprise_linux:openexr-devel

Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 3/1/2022

Reference Information

CVE: CVE-2021-3941

Detections

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