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    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 headers, as demonstrated by a request containing two Location header lines, which results in a segmentation fault.

    Published:Jul 24, 2007
    Last Modified:Apr 23, 2026
    EPS:Jul 24, 2007
    EPSS Score:0.16486
    CVSS Score:5.8

    Affected Products

    Vendor
    Lighttpd
    Product
    Lighttpd

    Exploits

    https://www.exploit-db.com/exploits/30322

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2025-12642 (CVSS 6.9) — lighttpd1.4.80 incorrectly merged trailer fields into headers after http request parsing. This behavior can be…
    CVE-2025-8759 (CVSS 2.9) — A vulnerability was found in TRENDnet TN-200 1.02b02. It has been declared as problematic. This vulnerability …
    CVE-2018-25103 (CVSS 5.3) — There exists use-after-free vulnerabilities in lighttpd <= 1.4.50 request parsing which might read from invali…
    CVE-2022-41556 (CVSS 7.5) — A resource leak in gw_backend.c in lighttpd 1.4.56 through 1.4.66 could lead to a denial of service (connectio…
    CVE-2022-37797 (CVSS 7.5) — In lighttpd 1.4.65, mod_wstunnel does not initialize a handler function pointer if an invalid HTTP request (we…
    CVE-2022-30780 (CVSS 7.5) — Lighttpd 1.4.56 through 1.4.58 allows a remote attacker to cause a denial of service (CPU consumption from stu…
    CVE-2022-22707 (CVSS 5.9) — In lighttpd 1.4.46 through 1.4.63, the mod_extforward_Forwarded function of the mod_extforward plugin has a st…
    CVE-2019-11072 (CVSS 9.8) — lighttpd before 1.4.54 has a signed integer overflow, which might allow remote attackers to cause a denial of …
    CVE-2018-19052 (CVSS 7.5) — An issue was discovered in mod_alias_physical_handler in mod_alias.c in lighttpd before 1.4.50. There is poten…
    CVE-2015-3200 (CVSS 7.5) — mod_auth in lighttpd before 1.4.36 allows remote attackers to inject arbitrary log entries via a basic HTTP au…

    References

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

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High