lighttpd denial of service vulnerability (CVE-2022-41556)
Advisory ID
WGSA-2024-00005
CVE
CVE-2022-41556
Impact
High
Status
Not Applicable
Product Family
Firebox,Endpoint,Dimension,Secure Wi-Fi
Published Date
Updated Date
Workaround Available
False
CVSS Score
7.5
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
A resource leak in gw_backend.c in lighttpd 1.4.56 through 1.4.66 could lead to a denial of service (connection-slot exhaustion) after a large amount of anomalous TCP behavior by clients. It is related to RDHUP mishandling in certain HTTP/1.1 chunked situations. Use of mod_fastcgi is, for example, affected. This is fixed in 1.4.67.
Affected
No WatchGuard products use the affected version of the lighttpd library