Description
A flaw was found in OpenEXR's B44 uncompression functionality in versions before 3.0.0-beta. An attacker who is able to submit a crafted file to OpenEXR could trigger shift overflows, potentially affecting application availability.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | OpenEXR | OpenEXR 3.0.0-beta | — |
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 | 2.5.4-1 | — |
| Debian 13 | openexr | 2.5.4-1 | — |
| Debian 12 | openexr | 2.5.4-1 | — |
| Debian 10 | openexr | 2.2.1-4.1+deb10u2 | DLA-3236-1 |
| Debian 9 | openexr | 2.2.0-11+deb9u3 | DLA-2701-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | openexr | 2.3.0-6ubuntu0.5 | USN-4900-1 |
| Ubuntu 18.04 LTS | openexr | 2.2.0-11.1ubuntu1.6 | USN-4900-1 |
| Ubuntu 16.04 LTS | openexr | 2.2.0-10ubuntu2.6 | USN-4900-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | openexr | 2.2.1-3.35.1 | SUSE-SU-2021:2793-1 |
| SLES 15 SP2 | openexr | 2.2.1-3.24.1 | SUSE-SU-2021:2793-1, SUSE-SU-2021:1097-1 |
| SLES 15 SP1 | openexr | 2.2.1-3.35.1 | SUSE-SU-2021:2793-1 |
| SLES 15 | openexr | 2.2.1-3.35.1 | SUSE-SU-2021:2793-1 |
| SLES 12 SP5 | openexr | 2.1.0-6.37.1 | SUSE-SU-2021:2913-1 |
Show 19 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP4 | openexr | 2.1.0-6.37.1 | SUSE-SU-2021:2913-1 |
| SLES 12 SP3 | openexr | 2.1.0-6.37.1 | SUSE-SU-2021:2913-1 |
| SLES 12 SP2 | openexr | 2.1.0-6.37.1 | SUSE-SU-2021:2913-1 |
| SLES for SAP 15 SP1 | openexr | 2.2.1-3.35.1 | SUSE-SU-2021:2793-1 |
| SLES for SAP 15 | openexr | 2.2.1-3.35.1 | SUSE-SU-2021:2793-1 |
| SLES for SAP 12 SP5 | openexr | 2.1.0-6.37.1 | SUSE-SU-2021:2913-1 |
| SLES for SAP 12 SP4 | openexr | 2.1.0-6.37.1 | SUSE-SU-2021:2913-1 |
| SLES for SAP 12 SP3 | openexr | 2.1.0-6.37.1 | SUSE-SU-2021:2913-1 |
| SLE HPC 15 SP1 | openexr | 2.2.1-3.35.1 | SUSE-SU-2021:2793-1 |
| SLE HPC 15 | openexr | 2.2.1-3.35.1 | SUSE-SU-2021:2793-1 |
| SUSE OpenStack Cloud Crowbar 9 | openexr | 2.1.0-6.37.1 | SUSE-SU-2021:2913-1 |
| SUSE OpenStack Cloud Crowbar 8 | openexr | 2.1.0-6.37.1 | SUSE-SU-2021:2913-1 |
| SUSE OpenStack Cloud 9 | openexr | 2.1.0-6.37.1 | SUSE-SU-2021:2913-1 |
| SUSE OpenStack Cloud 8 | openexr | 2.1.0-6.37.1 | SUSE-SU-2021:2913-1 |
| SUSE Manager Server 4.0 | openexr | 2.2.1-3.35.1 | SUSE-SU-2021:2793-1 |
| SUSE Manager Retail Branch Server 4.0 | openexr | 2.2.1-3.35.1 | SUSE-SU-2021:2793-1 |
| SUSE Manager Proxy 4.0 | openexr | 2.2.1-3.35.1 | SUSE-SU-2021:2793-1 |
| SUSE HPE Helion OpenStack 8 | openexr | 2.1.0-6.37.1 | SUSE-SU-2021:2913-1 |
| SUSE Enterprise Storage 6 | openexr | 2.2.1-3.35.1 | SUSE-SU-2021:2793-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.3 | openexr | 2.2.1-3.35.1 | openSUSE-SU-2021:2793-1 |
| openSUSE Leap 15.2 | openexr | 2.2.1-lp152.7.11.1 | openSUSE-SU-2021:1198-1, openSUSE-SU-2021:0536-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | openexr | 2.5.4-r0 | — |
| Alpine v3.23 | openexr | 2.5.4-r0 | — |
| Alpine v3.22 | openexr | 2.5.4-r0 | — |
| Alpine v3.21 | openexr | 2.5.4-r0 | — |
| Alpine v3.20 | openexr | 2.5.4-r0 | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | openexr | 2.5.4-r0 | — |
| Alpine v3.18 | openexr | 2.5.4-r0 | — |
| Alpine v3.17 | openexr | 2.5.4-r0 | — |
| Alpine v3.16 | openexr | 2.5.4-r0 | — |
| Alpine v3.15 | openexr | 2.5.4-r0 | — |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | OpenEXR | No fix yet | — |
Advisories 9
- USN-4900-1 openexr vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-2701-1 openexr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3236-1 openexr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2021:1198-1 Security update for openexr SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0536-1 Security update for openexr SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:2793-1 Security update for openexr SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1097-1 Security update for openexr SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2913-1 Security update for openexr SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2793-1 Security update for openexr SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1939145
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24787
- [debian-lts-announce] 20210703 [SECURITY] [DLA 2701-1] openexr security update mailing-list
- GLSA-202107-27 vendor-advisory
- [debian-lts-announce] 20221211 [SECURITY] [DLA 3236-1] openexr security update mailing-list