CVE-2022-41556

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-41556
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.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.lighttpd.net/lighttpd/lighttpd1.4/commit/b18de6f9264f914f7bf493abd3b6059343548e50 Patch Third Party Advisory
https://github.com/lighttpd/lighttpd1.4/compare/lighttpd-1.4.66...lighttpd-1.4.67 Third Party Advisory
https://github.com/lighttpd/lighttpd1.4/pull/115 Exploit Issue Tracking Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OVOSBSCMLGCHH2Z74H64ZWVDFJFQTBC2/
https://security.gentoo.org/glsa/202210-12 Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:lighttpd:lighttpd:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
History

07 Nov 2023, 03:52

Type Values Removed Values Added
References
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OVOSBSCMLGCHH2Z74H64ZWVDFJFQTBC2/', 'name': 'FEDORA-2022-c26b19568d', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OVOSBSCMLGCHH2Z74H64ZWVDFJFQTBC2/ -

03 Dec 2022, 01:14

Type Values Removed Values Added
CPE cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
First Time Fedoraproject
Fedoraproject fedora
References (GENTOO) https://security.gentoo.org/glsa/202210-12 - (GENTOO) https://security.gentoo.org/glsa/202210-12 - Third Party Advisory
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OVOSBSCMLGCHH2Z74H64ZWVDFJFQTBC2/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OVOSBSCMLGCHH2Z74H64ZWVDFJFQTBC2/ - Mailing List, Third Party Advisory

31 Oct 2022, 04:15

Type Values Removed Values Added
References
  • (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OVOSBSCMLGCHH2Z74H64ZWVDFJFQTBC2/ -
  • (GENTOO) https://security.gentoo.org/glsa/202210-12 -

07 Oct 2022, 19:38

Type Values Removed Values Added
CWE CWE-401
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.5
References (MISC) https://github.com/lighttpd/lighttpd1.4/compare/lighttpd-1.4.66...lighttpd-1.4.67 - (MISC) https://github.com/lighttpd/lighttpd1.4/compare/lighttpd-1.4.66...lighttpd-1.4.67 - Third Party Advisory
References (MISC) https://git.lighttpd.net/lighttpd/lighttpd1.4/commit/b18de6f9264f914f7bf493abd3b6059343548e50 - (MISC) https://git.lighttpd.net/lighttpd/lighttpd1.4/commit/b18de6f9264f914f7bf493abd3b6059343548e50 - Patch, Third Party Advisory
References (MISC) https://github.com/lighttpd/lighttpd1.4/pull/115 - (MISC) https://github.com/lighttpd/lighttpd1.4/pull/115 - Exploit, Issue Tracking, Third Party Advisory
First Time Lighttpd
Lighttpd lighttpd
CPE cpe:2.3:a:lighttpd:lighttpd:*:*:*:*:*:*:*:*

06 Oct 2022, 18:44

Type Values Removed Values Added
New CVE
Information

Published : 2022-10-06 18:17

Updated : 2023-12-10 14:35

NVD link : CVE-2022-41556

Mitre link : CVE-2022-41556

CVE.ORG link : CVE-2022-41556

JSON object : View

Products Affected

fedoraproject

  • fedora

lighttpd

  • lighttpd
CWE
CWE-401

Missing Release of Memory after Effective Lifetime