CVE catalog

CVE-2021-20303

openexr: CVE-2021-20303

Severity: Medium · CVSS 6.1CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
Published: Feb 15, 2021, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.82% · Oct 25, 2026

A flaw found in function dataWindowForTile() of IlmImf/ImfTiledMisc.cpp. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow, leading to an out-of-bounds write on the heap. The greatest impact of this flaw is to application availability, with some potential impact to data integrity as well.

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	`2.2.1-4.1ubuntu1`	vulnerable
Ubuntu	openexr	pro	`2.3.0-6`	vulnerable
Ubuntu	openexr	pro	`2.3.0-6build1`	vulnerable
Ubuntu	openexr	pro	`2.3.0-6ubuntu0.1`	vulnerable
Ubuntu	openexr	pro	`2.3.0-6ubuntu0.2`	vulnerable
Ubuntu	openexr	pro	`2.3.0-6ubuntu0.3`	vulnerable
Ubuntu	openexr	pro	`2.3.0-6ubuntu0.5`	vulnerable
Ubuntu	openexr	pro	`2.3.0-6ubuntu0.5+esm1`	vulnerable
Ubuntu	openexr	pro	`2.3.0-6ubuntu0.5+esm2`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	openexr	source	sid	`2.5.4-1`	not yet assigned	Not reported	Not reported
Debian	openexr	source	forky	`2.5.4-1`	not yet assigned	Not reported	Not reported
Debian	openexr	source	trixie	`2.5.4-1`	not yet assigned	Not reported	Not reported
Debian	openexr	source	bookworm	`2.5.4-1`	not yet assigned	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libopenexr-3-1-30]Fixed
Source package: [openexr]
Details (2)
- 3.1.5-5 · amd64 · bookworm
  Fixed · Fixed: 2.5.4-1
  dsa · openexr · debian · bookworm; dsa · openexr · debian · 12
- 3.1.5-5 · arm64 · bookworm
  Fixed · Fixed: 2.5.4-1
  dsa · openexr · debian · bookworm; dsa · openexr · debian · 12
[libopenexr-dev]Fixed
Source package: [openexr]
Details (2)
- 3.1.5-5 · amd64 · bookworm
  Fixed · Fixed: 2.5.4-1
  dsa · openexr · debian · bookworm; dsa · openexr · debian · 12
- 3.1.5-5 · arm64 · bookworm
  Fixed · Fixed: 2.5.4-1
  dsa · openexr · debian · bookworm; dsa · openexr · debian · 12
[libopenexr-doc]Fixed
Source package: [openexr]
Details (2)
- 3.1.5-5 · all · bookworm
  Fixed · Fixed: 2.5.4-1
  dsa · openexr · debian · bookworm; dsa · openexr · debian · 12
- 3.1.5-5 · all · bookworm
  Fixed · Fixed: 2.5.4-1
  dsa · openexr · debian · bookworm; dsa · openexr · debian · 12
[openexr]Fixed
Details (2)
- 3.1.5-5 · amd64 · bookworm
  Fixed · Fixed: 2.5.4-1
  dsa · openexr · debian · bookworm; dsa · openexr · debian · 12
- 3.1.5-5 · arm64 · bookworm
  Fixed · Fixed: 2.5.4-1
  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: 2.5.4-1
  dsa · openexr · debian · 13
- 3.1.13-2 · arm64 · trixie
  Fixed · Fixed: 2.5.4-1
  dsa · openexr · debian · 13
[libopenexr-dev]Fixed
Source package: [openexr]
Details (2)
- 3.1.13-2 · amd64 · trixie
  Fixed · Fixed: 2.5.4-1
  dsa · openexr · debian · 13
- 3.1.13-2 · arm64 · trixie
  Fixed · Fixed: 2.5.4-1
  dsa · openexr · debian · 13
[libopenexr-doc]Fixed
Source package: [openexr]
Details (2)
- 3.1.13-2 · all · trixie
  Fixed · Fixed: 2.5.4-1
  dsa · openexr · debian · 13
- 3.1.13-2 · all · trixie
  Fixed · Fixed: 2.5.4-1
  dsa · openexr · debian · 13
[openexr]Fixed
Details (2)
- 3.1.13-2 · amd64 · trixie
  Fixed · Fixed: 2.5.4-1
  dsa · openexr · debian · 13
- 3.1.13-2 · arm64 · trixie
  Fixed · Fixed: 2.5.4-1
  dsa · openexr · debian · 13

Observed: Oct 23, 2026, 5:54:19 PM UTC

References

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