CVE catalog

CVE-2021-3941

openexr: CVE-2021-3941

Severity: Medium · CVSS 5.5CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published: Nov 11, 2021, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.30% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	openexr	sid	`3.4.16+ds-1`	fixed
Debian	openexr	forky	`3.4.16+ds-1`	fixed
Debian	openexr	trixie	`3.1.13-2`	fixed
Debian	openexr	bookworm	`3.1.5-5`	fixed
Ubuntu	openexr	pro	`2.2.0-1ubuntu3`	vulnerable
Ubuntu	openexr	pro	`2.2.0-7ubuntu1`	vulnerable
Ubuntu	openexr	pro	`2.2.0-9ubuntu1`	vulnerable
Ubuntu	openexr	pro	`2.2.0-10ubuntu2`	vulnerable
Ubuntu	openexr	pro	`2.2.0-10ubuntu2.1`	vulnerable
Ubuntu	openexr	pro	`2.2.0-10ubuntu2.2`	vulnerable
Ubuntu	openexr	pro	`2.2.0-10ubuntu2.3`	vulnerable
Ubuntu	openexr	pro	`2.2.0-10ubuntu2.4`	vulnerable
Ubuntu	openexr	pro	`2.2.0-10ubuntu2.6`	vulnerable
Ubuntu	openexr	pro	`2.2.0-10ubuntu2.6+esm1`	vulnerable
Ubuntu	openexr	pro	`2.2.0-10ubuntu2.6+esm2`	vulnerable
Ubuntu	openexr	pro	`2.2.0-10ubuntu2.6+esm3`	fixed
Ubuntu	openexr	18.04	`2.2.0-11ubuntu1`	vulnerable
Ubuntu	openexr	18.04	`2.2.0-11.1ubuntu1`	vulnerable
Ubuntu	openexr	18.04	`2.2.0-11.1ubuntu1.1`	vulnerable
Ubuntu	openexr	18.04	`2.2.0-11.1ubuntu1.2`	vulnerable
Ubuntu	openexr	18.04	`2.2.0-11.1ubuntu1.3`	vulnerable
Ubuntu	openexr	18.04	`2.2.0-11.1ubuntu1.4`	vulnerable
Ubuntu	openexr	18.04	`2.2.0-11.1ubuntu1.6`	vulnerable
Ubuntu	openexr	18.04	`2.2.0-11.1ubuntu1.7`	vulnerable
Ubuntu	openexr	18.04	`2.2.0-11.1ubuntu1.8`	vulnerable
Ubuntu	openexr	18.04	`2.2.0-11.1ubuntu1.9`	fixed
Ubuntu	openexr	pro	`2.5.4-2`	vulnerable
Ubuntu	openexr	pro	`2.5.7-1`	vulnerable
Ubuntu	openexr	pro	`2.5.7-1ubuntu0.1~esm1`	fixed
Ubuntu	openexr	18.04	`2.2.0-11ubuntu1`	vulnerable
Ubuntu	openexr	18.04	`2.2.0-11.1ubuntu1`	vulnerable
Ubuntu	openexr	18.04	`2.2.0-11.1ubuntu1.1`	vulnerable
Ubuntu	openexr	18.04	`2.2.0-11.1ubuntu1.2`	vulnerable
Ubuntu	openexr	18.04	`2.2.0-11.1ubuntu1.3`	vulnerable
Ubuntu	openexr	18.04	`2.2.0-11.1ubuntu1.4`	vulnerable
Ubuntu	openexr	18.04	`2.2.0-11.1ubuntu1.6`	vulnerable
Ubuntu	openexr	18.04	`2.2.0-11.1ubuntu1.7`	vulnerable
Ubuntu	openexr	18.04	`2.2.0-11.1ubuntu1.8`	vulnerable
Ubuntu	openexr	18.04	`2.2.0-11.1ubuntu1.9`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	openexr	source	sid	`3.1.5-2`	not yet assigned	Not reported	[1014828]
Debian	openexr	source	forky	`3.1.5-2`	not yet assigned	Not reported	[1014828]
Debian	openexr	source	trixie	`3.1.5-2`	not yet assigned	Not reported	[1014828]
Debian	openexr	source	bookworm	`3.1.5-2`	not yet assigned	Not reported	[1014828]
Ubuntu	openexr	deb	pro	`2.2.0-10ubuntu2.6+esm3`	Not reported	USN-5150-1	Not reported
Ubuntu	openexr	deb	18.04	`2.2.0-11.1ubuntu1.9`	Not reported	USN-5150-1	Not reported
Ubuntu	openexr	deb	pro	`2.5.7-1ubuntu0.1~esm1`	Not reported	UBUNTU-CVE-2021-3941	Not reported
Ubuntu	openexr	deb	18.04	`2.2.0-11.1ubuntu1.9`	Not reported	UBUNTU-CVE-2021-3941	Not reported

[Debian bug #1014828]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libopenexr-3-1-30]Fixed
Source package: [openexr]
Details (2)
- 3.1.5-5 · amd64 · bookworm
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · bookworm; dsa · openexr · debian · 12
- 3.1.5-5 · arm64 · bookworm
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · bookworm; dsa · openexr · debian · 12
[libopenexr-dev]Fixed
Source package: [openexr]
Details (2)
- 3.1.5-5 · amd64 · bookworm
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · bookworm; dsa · openexr · debian · 12
- 3.1.5-5 · arm64 · bookworm
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · bookworm; dsa · openexr · debian · 12
[libopenexr-doc]Fixed
Source package: [openexr]
Details (2)
- 3.1.5-5 · all · bookworm
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · bookworm; dsa · openexr · debian · 12
- 3.1.5-5 · all · bookworm
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · bookworm; dsa · openexr · debian · 12
[openexr]Fixed
Details (2)
- 3.1.5-5 · amd64 · bookworm
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · bookworm; dsa · openexr · debian · 12
- 3.1.5-5 · arm64 · bookworm
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · bookworm; dsa · openexr · debian · 12

[Debian 13 (Trixie)]

[libopenexr-3-1-30]Fixed
Source package: [openexr]
Details (2)
- 3.1.13-2 · amd64 · trixie
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · 13
- 3.1.13-2 · arm64 · trixie
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · 13
[libopenexr-dev]Fixed
Source package: [openexr]
Details (2)
- 3.1.13-2 · amd64 · trixie
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · 13
- 3.1.13-2 · arm64 · trixie
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · 13
[libopenexr-doc]Fixed
Source package: [openexr]
Details (2)
- 3.1.13-2 · all · trixie
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · 13
- 3.1.13-2 · all · trixie
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · 13
[openexr]Fixed
Details (2)
- 3.1.13-2 · amd64 · trixie
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · 13
- 3.1.13-2 · arm64 · trixie
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · 13

Observed: Oct 23, 2026, 6:01:58 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]