Vulnerability-Lookup

CVE-2021-3941 (GCVE-0-2021-3941)

Vulnerability from cvelistv5 – Published: 2022-03-25 00:00 – Updated: 2024-08-03 17:09

Summary

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.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CWE

CWE-369

Assigner

redhat redhat root

References

5 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2019789
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://security.gentoo.org/glsa/202210-31	vendor-advisory
https://www.debian.org/security/2022/dsa-5299	vendor-advisory
https://lists.debian.org/debian-lts-announce/2022…	mailing-list

Impacted products

1 product

Vendor	Product	Version	CPE status
n/a	openexr	Affected: OpenEXR 3.1.2

Show details on NVD website

JSON

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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2025-11-21T15:11:20+00:00",
      "cve": "CVE-2021-3941",
      "id": "CVE-2021-3941",
      "initial_release_date": "2021-09-21T00:00:00+00:00",
      "product_status:known_affected": "13",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "openexr: Divide-by-zero in Imf_3_1::RGBtoXYZ",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-3941.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-31T02:10:17Z",
      "cve": "CVE-2021-3941",
      "id": "CVE-2021-3941",
      "initial_release_date": "2023-02-15T03:48:20Z",
      "product_status:known_affected": "50",
      "product_status:recommended": "171",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2021-3941",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-3941.json",
      "version": "18"
    }
  }
}

SUSE-SU-2021:3843-1

Vulnerability from csaf_suse - Published: 2021-12-01 15:32 - Updated: 2021-12-01 15:32

Summary

Security update for openexr

Severity

Moderate

Scope

3 vulnerabilities in this advisory, including CVE-2021-3941.

CVE-2021-3941

5.5 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Recommended: 21 products

Open the full advisory

SUSE-SU-2021:3844-1

Vulnerability from csaf_suse - Published: 2021-12-01 15:37 - Updated: 2021-12-01 15:37

Summary

Security update for openexr

Severity

Moderate

Scope

2 vulnerabilities in this advisory, including CVE-2021-3941.

CVE-2021-3941

5.5 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Recommended: 24 products

Open the full advisory

ubuntu-cve-2021-3941

Vulnerability from osv_ubuntu

Published

2021-11-11 00:00

Modified

2026-04-22 07:39

Summary

Details

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.

Severity

6.5 (Medium)


                    
                      CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

N/A (UNKNOWN)

low

References

URL

Type

	https://ubuntu.com/security/CVE-2021-3941	REPORT
	https://github.com/AcademySoftwareFoundation/open…	REPORT
	https://ubuntu.com/security/notices/USN-5150-1	ADVISORY
	https://ubuntu.com/security/notices/USN-5620-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2021-3941	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libopenexr22",
            "binary_version": "2.2.0-10ubuntu2.6+esm3"
          },
          {
            "binary_name": "openexr",
            "binary_version": "2.2.0-10ubuntu2.6+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "openexr",
        "purl": "pkg:deb/ubuntu/openexr@2.2.0-10ubuntu2.6+esm3?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.0-10ubuntu2.6+esm3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.0-1ubuntu3",
        "2.2.0-7ubuntu1",
        "2.2.0-9ubuntu1",
        "2.2.0-10ubuntu2",
        "2.2.0-10ubuntu2.1",
        "2.2.0-10ubuntu2.2",
        "2.2.0-10ubuntu2.3",
        "2.2.0-10ubuntu2.4",
        "2.2.0-10ubuntu2.6",
        "2.2.0-10ubuntu2.6+esm1",
        "2.2.0-10ubuntu2.6+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libopenexr22",
            "binary_version": "2.2.0-11.1ubuntu1.9"
          },
          {
            "binary_name": "openexr",
            "binary_version": "2.2.0-11.1ubuntu1.9"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "openexr",
        "purl": "pkg:deb/ubuntu/openexr@2.2.0-11.1ubuntu1.9?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.0-11.1ubuntu1.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.0-11ubuntu1",
        "2.2.0-11.1ubuntu1",
        "2.2.0-11.1ubuntu1.1",
        "2.2.0-11.1ubuntu1.2",
        "2.2.0-11.1ubuntu1.3",
        "2.2.0-11.1ubuntu1.4",
        "2.2.0-11.1ubuntu1.6",
        "2.2.0-11.1ubuntu1.7",
        "2.2.0-11.1ubuntu1.8"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libopenexr24",
            "binary_version": "2.3.0-6ubuntu0.5+esm1"
          },
          {
            "binary_name": "openexr",
            "binary_version": "2.3.0-6ubuntu0.5+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "openexr",
        "purl": "pkg:deb/ubuntu/openexr@2.3.0-6ubuntu0.5+esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.3.0-6ubuntu0.5+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.1-4.1ubuntu1",
        "2.3.0-6",
        "2.3.0-6build1",
        "2.3.0-6ubuntu0.1",
        "2.3.0-6ubuntu0.2",
        "2.3.0-6ubuntu0.3",
        "2.3.0-6ubuntu0.5"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libopenexr25",
            "binary_version": "2.5.7-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "openexr",
            "binary_version": "2.5.7-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "openexr",
        "purl": "pkg:deb/ubuntu/openexr@2.5.7-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.5.7-1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.5.4-2",
        "2.5.7-1"
      ]
    }
  ],
  "aliases": [],
  "details": "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.",
  "id": "UBUNTU-CVE-2021-3941",
  "modified": "2026-04-22T07:39:50Z",
  "published": "2021-11-11T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3941"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/AcademySoftwareFoundation/openexr/pull/1153"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5150-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5620-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-3941"
    }
  ],
  "related": [
    "USN-5150-1",
    "USN-5620-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-3941"
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2021-3941 (GCVE-0-2021-3941)

SUSE-SU-2021:3843-1

SUSE-SU-2021:3844-1

ubuntu-cve-2021-3941

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature

Related by attack behaviour