Rapid7 Vulnerability & Exploit Database

lighttpd: could lead to a denial of service (connection-slot exhaustion) after a large amount of anomalous TCP behavior by clients (CVE-2022-41556)

Free InsightVM Trial No Credit Card Necessary
2024 Attack Intel Report Latest research by Rapid7 Labs
Back to Search

lighttpd: could lead to a denial of service (connection-slot exhaustion) after a large amount of anomalous TCP behavior by clients (CVE-2022-41556)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
10/06/2022
Created
09/24/2024
Added
09/19/2024
Modified
09/20/2024

Description

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.

Solution(s)

  • http-lighttpd-upgrade-latest

References

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;