Upstream information
Description
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. Versions 3.4.0 through 3.4.9 have a signed integer overflow vulnerability in OpenEXR's HTJ2K (High-Throughput JPEG 2000) decompression path. The `ht_undo_impl()` function in `src/lib/OpenEXRCore/internal_ht.cpp` accumulates a bytes-per-line value (`bpl`) using a 32-bit signed integer with no overflow guard. A crafted EXR file with 16,385 FLOAT channels at the HTJ2K maximum width of 32,767 causes `bpl` to overflow `INT_MAX`, producing undefined behavior confirmed by UBSan. On anallocator-permissive host where the required ~64 GB allocation succeeds, the wrapped negative `bpl` value would subsequently be used as a per-scanline pointer advance, which would produce a heap out-of-bounds write. On a memory-constrained host, the allocation fails before `ht_undo_impl()` is entered. This is the second distinct integer overflow in `ht_undo_impl()`. CVE-2026-34545 addressed a different overflow in the same function - the `int16_t p` pixel-loop counter at line ~302 that overflows when iterating over channels whose `width` exceeds 32,767. The CVE-2026-34545 fix did not touch the `int bpl` accumulator at line 211, which is the subject of this advisory. The `bpl` accumulator was also not addressed by any of the 8 advisories in the 2026-04-05 v3.4.9 release batch. This finding is structurally identical to CVE-2026-34588 (PIZ `wcount*nx` overflow in `internal_piz.c`) and should be remediated with the same pattern. The CVE-2026-34588 fix did not touch `internal_ht.cpp`. Version 3.4.10 contains a remediation that addresses the vulnerability in `internal_ht.cpp`.
SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having moderate severity.
| CVSS detail | CNA (GitHub) | SUSE |
|---|---|---|
| Base Score | 5.3 | 5.3 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Privileges Required | None | None |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | None | None |
| Integrity Impact | None | None |
| Availability Impact | Low | Low |
| CVSSv3 Version | 3.1 | 3.1 |
| CVSS detail | SUSE |
|---|---|
| Base Score | 6.9 |
| Vector | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N |
| Attack Vector | Network |
| Attack Complexity | Low |
| Attack Requirements | None |
| Privileges Required | None |
| User Interaction | None |
| Vulnerable System Confidentiality Impact | None |
| Vulnerable System Integrity Impact | None |
| Vulnerable System Availability Impact | Low |
| Subsequent System Confidentiality Impact | None |
| Subsequent System Integrity Impact | None |
| Subsequent System Availability Impact | None |
| CVSSv4 Version | 4.0 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Desktop 15 SP7 | openexr | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP7 | openexr | Not affected |
| SUSE Linux Enterprise Module for Desktop Applications 15 SP7 | openexr | Not affected |
| SUSE Linux Enterprise Server 15 SP7 | openexr | Not affected |
| SUSE Linux Enterprise Server 16.0 | openexr | Not affected |
| SUSE Linux Enterprise Server 16.1 | openexr | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | openexr | Not affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | openexr | Not affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | openexr | Affected |
| openSUSE Leap 15.6 | openexr | Not affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4 | openexr | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | openexr | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | openexr | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | openexr | Not affected |
| SUSE Linux Enterprise Module for Desktop Applications 15 SP4 | openexr | Not affected |
| SUSE Linux Enterprise Module for Desktop Applications 15 SP5 | openexr | Not affected |
| SUSE Linux Enterprise Module for Desktop Applications 15 SP6 | openexr | Not affected |
| SUSE Linux Enterprise Server 12 SP5 | openexr | Not affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS | openexr | Not affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security | openexr | Not affected |
| SUSE Linux Enterprise Server 15 SP4 | openexr | Not affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | openexr | Not affected |
| SUSE Linux Enterprise Server 15 SP5 | openexr | Not affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | openexr | Not affected |
| SUSE Linux Enterprise Server 15 SP6 | openexr | Not affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | openexr | Not affected |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | openexr | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | openexr | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | openexr | Not affected |
| SUSE Manager Proxy 4.3 | openexr | Not affected |
| SUSE Manager Retail Branch Server 4.3 | openexr | Not affected |
| SUSE Manager Server 4.3 | openexr | Not affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| HPE Helion OpenStack 8 | openexr | Not affected |
| SUSE CaaS Platform 4.0 | openexr | Not affected |
| SUSE Enterprise Storage 6 | openexr | Not affected |
| SUSE Enterprise Storage 7 | openexr | Not affected |
| SUSE Enterprise Storage 7.1 | openexr | Not affected |
| SUSE Linux Enterprise Desktop 12 | openexr | Not affected |
| SUSE Linux Enterprise Desktop 12 SP1 | openexr | Not affected |
| SUSE Linux Enterprise Desktop 12 SP2 | openexr | Not affected |
| SUSE Linux Enterprise Desktop 12 SP3 | openexr | Not affected |
| SUSE Linux Enterprise Desktop 12 SP4 | openexr | Not affected |
| SUSE Linux Enterprise Desktop 15 | openexr | Not affected |
| SUSE Linux Enterprise Desktop 15 SP1 | openexr | Not affected |
| SUSE Linux Enterprise Desktop 15 SP2 | openexr | Not affected |
| SUSE Linux Enterprise Desktop 15 SP3 | openexr | Not affected |
| SUSE Linux Enterprise Desktop 15 SP4 | openexr | Not affected |
| SUSE Linux Enterprise Desktop 15 SP5 | openexr | Not affected |
| SUSE Linux Enterprise Desktop 15 SP6 | openexr | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 | openexr | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | openexr | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | openexr | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | openexr | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | openexr | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | openexr | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | openexr | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | openexr | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | openexr | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | openexr | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | openexr | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | openexr | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | openexr | Not affected |
| SUSE Linux Enterprise High Performance Computing 15-ESPOS | openexr | Not affected |
| SUSE Linux Enterprise High Performance Computing 15-LTSS | openexr | Not affected |
| SUSE Linux Enterprise Module for Desktop Applications 15 | openexr | Not affected |
| SUSE Linux Enterprise Module for Desktop Applications 15 SP1 | openexr | Not affected |
| SUSE Linux Enterprise Module for Desktop Applications 15 SP2 | openexr | Not affected |
| SUSE Linux Enterprise Module for Desktop Applications 15 SP3 | openexr | Not affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP4 | openexr | Not affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP5 | openexr | Not affected |
| SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT | openexr | Not affected |
| SUSE Linux Enterprise Real Time 15 SP2 | openexr | Not affected |
| SUSE Linux Enterprise Real Time 15 SP3 | openexr | Not affected |
| SUSE Linux Enterprise Real Time 15 SP4 | openexr | Not affected |
| SUSE Linux Enterprise Server 12 | openexr | Not affected |
| SUSE Linux Enterprise Server 12 SP1 | openexr | Not affected |
| SUSE Linux Enterprise Server 12 SP1-LTSS | openexr | Not affected |
| SUSE Linux Enterprise Server 12 SP2 | openexr | Not affected |
| SUSE Linux Enterprise Server 12 SP2-BCL | openexr | Not affected |
| SUSE Linux Enterprise Server 12 SP2-ESPOS | openexr | Not affected |
| SUSE Linux Enterprise Server 12 SP2-LTSS | openexr | Not affected |
| SUSE Linux Enterprise Server 12 SP3 | openexr | Not affected |
| SUSE Linux Enterprise Server 12 SP3-BCL | openexr | Not affected |
| SUSE Linux Enterprise Server 12 SP3-ESPOS | openexr | Not affected |
| SUSE Linux Enterprise Server 12 SP3-LTSS | openexr | Not affected |
| SUSE Linux Enterprise Server 12 SP4 | openexr | Not affected |
| SUSE Linux Enterprise Server 12 SP4-ESPOS | openexr | Not affected |
| SUSE Linux Enterprise Server 12 SP4-LTSS | openexr | Not affected |
| SUSE Linux Enterprise Server 12-LTSS | openexr | Not affected |
| SUSE Linux Enterprise Server 15 | openexr | Not affected |
| SUSE Linux Enterprise Server 15 SP1 | openexr | Not affected |
| SUSE Linux Enterprise Server 15 SP1-BCL | openexr | Not affected |
| SUSE Linux Enterprise Server 15 SP1-LTSS | openexr | Not affected |
| SUSE Linux Enterprise Server 15 SP2 | openexr | Not affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | openexr | Not affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | openexr | Not affected |
| SUSE Linux Enterprise Server 15 SP3 | openexr | Not affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | openexr | Not affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | openexr | Not affected |
| SUSE Linux Enterprise Server 15-LTSS | openexr | Not affected |
| SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 | openexr | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 | openexr | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP1 | openexr | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP2 | openexr | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | openexr | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | openexr | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 | openexr | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | openexr | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | openexr | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | openexr | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | openexr | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | openexr | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 | openexr | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP1 | openexr | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP2 | openexr | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP3 | openexr | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP4 | openexr | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP5 | openexr | Not affected |
| SUSE Linux Enterprise Workstation Extension 12 | openexr | Not affected |
| SUSE Linux Enterprise Workstation Extension 12 SP1 | openexr | Not affected |
| SUSE Linux Enterprise Workstation Extension 12 SP2 | openexr | Not affected |
| SUSE Linux Enterprise Workstation Extension 12 SP3 | openexr | Not affected |
| SUSE Linux Enterprise Workstation Extension 12 SP4 | openexr | Not affected |
| SUSE Linux Enterprise Workstation Extension 12 SP5 | openexr | Not affected |
| SUSE Manager Proxy 4.0 | openexr | Not affected |
| SUSE Manager Proxy 4.1 | openexr | Not affected |
| SUSE Manager Proxy 4.2 | openexr | Not affected |
| SUSE Manager Retail Branch Server 4.0 | openexr | Not affected |
| SUSE Manager Retail Branch Server 4.1 | openexr | Not affected |
| SUSE Manager Retail Branch Server 4.2 | openexr | Not affected |
| SUSE Manager Server 4.0 | openexr | Not affected |
| SUSE Manager Server 4.1 | openexr | Not affected |
| SUSE Manager Server 4.2 | openexr | Not affected |
| SUSE OpenStack Cloud 7 | openexr | Not affected |
| SUSE OpenStack Cloud 8 | openexr | Not affected |
| SUSE OpenStack Cloud 9 | openexr | Not affected |
| SUSE OpenStack Cloud Crowbar 8 | openexr | Not affected |
| SUSE OpenStack Cloud Crowbar 9 | openexr | Not affected |
| openSUSE Leap 15.3 | openexr | Not affected |
| openSUSE Leap 15.4 | openexr | Not affected |
| openSUSE Leap 15.5 | openexr | Not affected |
SUSE Timeline for this CVE
CVE page created: Tue Apr 21 06:00:17 2026CVE page last modified: Tue Apr 21 13:07:05 2026