# CVE-2021-45942: openexr: OpenEXR 3.1.x before 3.1.4 has a heap-based buffer overflow in Imf_3_1::LineCompositeTask::execute (called from IlmTh...

CVE-2021-45942 is fixed in openexr on 1 platform, first by DEBIAN-CVE-2021-45942, released January 1, 2022. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2021-45942
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0182
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 1, 2022

## Description

OpenEXR 3.1.x before 3.1.4 has a heap-based buffer overflow in Imf_3_1::LineCompositeTask::execute (called from IlmThread_3_1::NullThreadPoolProvider::addTask and IlmThread_3_1::ThreadPool::addGlobalTask). NOTE: db217f2 may be inapplicable.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | openexr Debian 12.15 (bookworm) | 3.1.5-2 | [DEBIAN-CVE-2021-45942](https://patchblox.com/security/data/fix/linux/debian-cve-2021-45942.md) | Jan 1, 2022 |
| Linux | openexr Debian 13.5 (trixie) | 3.1.5-2 | [DEBIAN-CVE-2021-45942](https://patchblox.com/security/data/fix/linux/debian-cve-2021-45942.md) | Jan 1, 2022 |
| Linux | openexr Debian 14 | 3.1.5-2 | [DEBIAN-CVE-2021-45942](https://patchblox.com/security/data/fix/linux/debian-cve-2021-45942.md) | Jan 1, 2022 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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