CVE-2007-3947

lighttpd < 1.4.15 - Denial of Service via Duplicate HTTP Headers

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2007-3947. PoCs published by Abhisek Datta.

AI-analyzed exploit summary This Metasploit module exploits a heap-based memory corruption vulnerability in Lighttpd <= 1.4.15 by leveraging dangling pointer dereference during HTTP header folding. It targets specific Linux distributions and attempts to achieve remote code execution.

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.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Abhisek Datta · rubyremotewindows
https://www.exploit-db.com/exploits/30322

This Metasploit module exploits a heap-based memory corruption vulnerability in Lighttpd <= 1.4.15 by leveraging dangling pointer dereference during HTTP header folding. It targets specific Linux distributions and attempts to achieve remote code execution.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Complex
Reliability
Racy
Target: Lighttpd <= 1.4.15
No auth needed
Prerequisites: Network access to the target Lighttpd server · Target must be running a vulnerable version of Lighttpd
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (13)

Core 13
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/24967
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/26158
Various Sources x_refsource_misc
http://trac.lighttpd.net/trac/changeset/1869
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://osvdb.org/38313
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2007/2585
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/26130
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/474131/100/0/threaded
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/26593
Various Sources x_refsource_confirm
http://trac.lighttpd.net/trac/ticket/1232
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2007/dsa-1362
Third Party Advisory vendor-advisory x_refsource_gentoo
http://security.gentoo.org/glsa/glsa-200708-11.xml
Vendor Advisory vendor-advisory x_refsource_suse
http://www.novell.com/linux/security/advisories/2007_15_sr.html
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/26505

Scores

EPSS 0.0807
EPSS Percentile 94.1%

Details

Status published
Products (1)
lighttpd/lighttpd < 1.4.15
Published Jul 24, 2007
Tracked Since Feb 18, 2026