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.

Remediation

References

CVE-2022-41556

Related Vulnerabilities

Oracle Application Server CVE-2008-1814 Vulnerability (CVE-2008-1814)

Internet Information Services Other Vulnerability (CVE-2002-0071)

Grafana Improper Authentication Vulnerability (CVE-2022-32276)

XWiki Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2023-45136)

Twisted Web HTTP Server Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2022-21712)

Severity

High

Classification

CVE-2022-41556 CWE-401 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Tags

Missing Update Known Vulnerabilities