# CVE-2021-20298: openexr: A flaw was found in OpenEXR's B44Compressor

CVE-2021-20298 is fixed in openexr on 1 platform, first by DEBIAN-CVE-2021-20298, released August 23, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2021-20298
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0157
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 23, 2022

## Description

A flaw was found in OpenEXR's B44Compressor. This flaw allows an attacker who can submit a crafted file to be processed by OpenEXR, to exhaust all memory accessible to the application. The highest threat from this vulnerability is to system availability.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | openexr Debian 12.15 (bookworm) | 2.5.4-1 | [DEBIAN-CVE-2021-20298](https://patchblox.com/security/data/fix/linux/debian-cve-2021-20298.md) | Aug 23, 2022 |
| Linux | openexr Debian 13.5 (trixie) | 2.5.4-1 | [DEBIAN-CVE-2021-20298](https://patchblox.com/security/data/fix/linux/debian-cve-2021-20298.md) | Aug 23, 2022 |
| Linux | openexr Debian 14 | 2.5.4-1 | [DEBIAN-CVE-2021-20298](https://patchblox.com/security/data/fix/linux/debian-cve-2021-20298.md) | Aug 23, 2022 |

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Data as of 2026-11-09T07:25:28Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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