Is CVE-2022-41556 actively exploited?

CVE-2022-41556 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2022-41556?

CVE-2022-41556 has a CVSS score of 7.5 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2022-41556?

Patch guidance is available from lighttpd security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2022-41556.

Fix CVE-2022-41556 - HIGH lighttpd lighttpd

Q: Which products are affected by CVE-2022-41556?

2 products: lighttpd lighttpd, fedoraproject fedora.

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-401

Metadata

Primary Vendor: LIGHTTPD
Published: 10/6/2022
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2022-41556

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary