CVE-2022-41556

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Summary

CVECVE-2022-41556
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-10-06 18:17:00 UTC
Updated2023-11-07 03:52:00 UTC
DescriptionA 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.

Risk And Classification

Problem Types: CWE-401

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 35 All All All
Application Lighttpd Lighttpd All All All All

References

ReferenceSourceLinkTags
Lighttpd: Denial of Service (GLSA 202210-12) — Gentoo security GENTOO security.gentoo.org
Comparing lighttpd-1.4.66...lighttpd-1.4.67 · lighttpd/lighttpd1.4 · GitHub MISC github.com
[SECURITY] Fedora 35 Update: lighttpd-1.4.67-1.fc35 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[core] handle RDHUP when collecting chunked body · b18de6f926 - lighttpd1.4 - Gitea: git hosting on git.lighttpd.net MISC git.lighttpd.net
[core] release connections in CLOSE_WAIT & CON_STATE_READ_POST state by gmd20 · Pull Request #115 · lighttpd/lighttpd1.4 · GitHub MISC github.com
[SECURITY] Fedora 35 Update: lighttpd-1.4.67-1.fc35 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 181083 Debian Security Update for lighttpd (DSA 5243-1)
  • 183019 Debian Security Update for lighttpd (CVE-2022-41556)
  • 199198 Ubuntu Security Notification for lighttpd Vulnerabilities (USN-5903-1)
  • 283176 Fedora Security Update for lighttpd (FEDORA-2022-c26b19568d)
  • 502743 Alpine Linux Security Update for lighttpd
  • 503685 Alpine Linux Security Update for lighttpd
  • 710656 Gentoo Linux Lighttpd Denial of Service Vulnerability (GLSA 202210-12)
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