Description
An issue was discovered in OpenEXR before 2.4.1. Because of integer overflows in CompositeDeepScanLine::Data::handleDeepFrameBuffer and readSampleCountForLineBlock, an attacker can write to an out-of-bounds pointer.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | openexr | 2.5.3-2 | — |
| Debian 13 | openexr | 2.5.3-2 | — |
| Debian 12 | openexr | 2.5.3-2 | — |
| Debian 10 | openexr | 2.2.1-4.1+deb10u1 | DSA-4755-1 |
| Debian 9 | openexr | 2.2.0-11+deb9u1 | DLA-2358-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | openexr | 2.3.0-6ubuntu0.1 | USN-4339-1 |
| Ubuntu 18.04 LTS | openexr | 2.2.0-11.1ubuntu1.2 | USN-4339-1 |
| Ubuntu 16.04 LTS | openexr | 2.2.0-10ubuntu2.2 | USN-4339-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | openexr | 2.4.1-r0 | — |
| Alpine v3.23 | openexr | 2.4.1-r0 | — |
| Alpine v3.22 | openexr | 2.4.1-r0 | — |
| Alpine v3.21 | openexr | 2.4.1-r0 | — |
| Alpine v3.20 | openexr | 2.4.1-r0 | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | openexr | 2.4.1-r0 | — |
| Alpine v3.18 | openexr | 2.4.1-r0 | — |
| Alpine v3.17 | openexr | 2.4.1-r0 | — |
| Alpine v3.16 | openexr | 2.4.1-r0 | — |
| Alpine v3.15 | openexr | 2.4.1-r0 | — |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | OpenEXR | No fix yet | — |
Advisories 3
- USN-4339-1 openexr vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-4755-1 openexr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2358-1 openexr - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v2.4.1
- https://github.com/AcademySoftwareFoundation/openexr/blob/master/CHANGES.md#version-241-february-11-2020
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1987
- USN-4339-1 vendor-advisory
- FEDORA-2020-e244f22a51 vendor-advisory
- https://support.apple.com/kb/HT211288
- https://support.apple.com/kb/HT211290
- https://support.apple.com/kb/HT211289
- https://support.apple.com/kb/HT211291
- https://support.apple.com/kb/HT211293
- https://support.apple.com/kb/HT211295
- https://support.apple.com/kb/HT211294
- DSA-4755 vendor-advisory
- [debian-lts-announce] 20200830 [SECURITY] [DLA 2358-1] openexr security update mailing-list
- GLSA-202107-27 vendor-advisory