Executive Summary

Informations
Name CVE-2022-41556 First vendor Publication 2022-10-06
Vendor Cve Last vendor Modification 2023-11-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 7.5
Base Score 7.5 Environmental Score 7.5
impact SubScore 3.6 Temporal Score 7.5
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-41556

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-401 Failure to Release Memory Before Removing Last Reference ('Memory Leak')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 73
Os 1

Sources (Detail)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
Source Url
GENTOO https://security.gentoo.org/glsa/202210-12
MISC https://git.lighttpd.net/lighttpd/lighttpd1.4/commit/b18de6f9264f914f7bf493ab...
https://github.com/lighttpd/lighttpd1.4/compare/lighttpd-1.4.66...lighttpd-1....
https://github.com/lighttpd/lighttpd1.4/pull/115

Alert History

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Date Informations
2023-11-07 21:31:29
  • Multiple Updates
2022-12-03 09:27:22
  • Multiple Updates
2022-10-31 09:27:20
  • Multiple Updates
2022-10-08 00:27:13
  • Multiple Updates
2022-10-07 00:27:10
  • First insertion